feat: update version

Resolve "Add draw user option for the session snapshot importer"

See merge request slumber/multi-user!156

.gitignore

@@ -14,3 +14,4 @@ _build
 
 # ignore generated zip generated from blender_addon_tester
 *.zip
+libs

.gitlab-ci.yml

@@ -0,0 +1,13 @@
+stages:
+  - test
+  - build
+  - deploy
+  - doc
+
+
+
+include:
+  - local: .gitlab/ci/test.gitlab-ci.yml
+  - local: .gitlab/ci/build.gitlab-ci.yml
+  - local: .gitlab/ci/deploy.gitlab-ci.yml
+  - local: .gitlab/ci/doc.gitlab-ci.yml

.gitlab/ci/build.gitlab-ci.yml

@@ -8,3 +8,5 @@ build:
     name: multi_user
     paths: 
      - multi_user
+  variables:
+    GIT_SUBMODULE_STRATEGY: recursive

.gitlab/ci/deploy.gitlab-ci.yml

@@ -5,6 +5,7 @@ deploy:
   variables:
     DOCKER_DRIVER: overlay2
     DOCKER_TLS_CERTDIR: "/certs"
+    GIT_SUBMODULE_STRATEGY: recursive
   
   services:
   - docker:19.03.12-dind

.gitlab/ci/test.gitlab-ci.yml

@@ -3,3 +3,5 @@ test:
   image: slumber/blender-addon-testing:latest
   script:
     - python3 scripts/test_addon.py
+  variables:
+    GIT_SUBMODULE_STRATEGY: recursive

.gitmodules

@@ -1,3 +1,3 @@
 [submodule "multi_user/libs/replication"]
 	path = multi_user/libs/replication
-	url = https://gitlab.com/slumber/replication
+	url = https://gitlab.com/slumber/replication.git

CHANGELOG.md

@@ -187,3 +187,33 @@ All notable changes to this project will be documented in this file.
 - Sync missing armature bone Roll
 - Sync missing driver data_path
 - Constraint replication
+
+## [0.4.0] - 2021-07-20
+
+### Added
+
+- Connection preset system (@Kysios)
+- Display connected users active mode (users pannel and viewport) (@Kysios)
+- Delta-based replication
+- Sync timeline marker
+- Sync images settings (@Kysios)
+- Sync parent relation type (@Kysios)
+- Sync uv project modifier
+- Sync FCurves modifiers
+
+### Changed
+
+- User selection optimizations (draw and sync) (@Kysios)
+- Improved shapekey syncing performances
+- Improved gpencil syncing performances
+- Integrate replication as a submodule
+- The dependencies are now installed in a folder(blender addon folder) that no longer requires administrative rights
+- Presence overlay UI optimization (@Kysios)
+
+### Fixed
+
+- User selection bounding box glitches for non-mesh objects (@Kysios)
+- Transforms replication for animated objects
+- GPencil fill stroke
+- Sculpt and GPencil brushes deleted when joining a session (@Kysios)
+- Auto-updater doesn't work for master and develop builds

README.md

@@ -11,9 +11,8 @@ This tool aims to allow multiple users to work on the same scene over the networ
 
 ## Quick installation
 
-1. Download latest release [multi_user.zip](https://gitlab.com/slumber/multi-user/-/jobs/artifacts/master/download?job=build).
-2. Run blender as administrator (dependencies installation).
-3. Install last_version.zip from your addon preferences.
+1. Download [latest build](https://gitlab.com/slumber/multi-user/-/jobs/artifacts/develop/download?job=build) or [stable build](https://gitlab.com/slumber/multi-user/-/jobs/artifacts/master/download?job=build).
+2. Install last_version.zip from your addon preferences.
 
 [Dependencies](#dependencies) will be automatically added to your blender python during installation.
 
@@ -29,35 +28,35 @@ See the [troubleshooting guide](https://slumber.gitlab.io/multi-user/getting_sta
 
 Currently, not all data-block are supported for replication over the wire. The following list summarizes the status for each ones.
 
-| Name           | Status |                           Comment                            |
-| -------------- | :----: | :----------------------------------------------------------: |
-| action         |   ✔️    |                                                              |
-| armature       |   ❗    |                          Not stable                          |
-| camera         |   ✔️    |                                                              |
-| collection     |   ✔️    |                                                              |
-| curve          |   ❗    |                 Nurbs surfaces not supported                 |
-| gpencil        |   ✔️    |                                                              |
-| image          |   ✔️    |                                                              |
-| mesh           |   ✔️    |                                                              |
-| material       |   ✔️    |                                                              |
-| node_groups    |   ❗    |                   Material & Geometry only                   |
-| geometry nodes |   ✔️    |                                                              |
-| metaball       |   ✔️    |                                                              |
-| object         |   ✔️    |                                                              |
-| textures       |   ❗    |       Supported for modifiers/materials/geo nodes only       |
-| texts          |   ✔️    |                                                              |
-| scene          |   ✔️    |                                                              |
-| world          |   ✔️    |                                                              |
-| lightprobes    |   ✔️    |                                                              |
-| compositing    |   ❌    | [Planned](https://gitlab.com/slumber/multi-user/-/issues/46) |
-| texts          |   ❌    | [Planned](https://gitlab.com/slumber/multi-user/-/issues/81) |
-| nla            |   ❌    |                                                              |
-| volumes        |   ✔️    |                                                              |
-| particles      |   ❗    |                   The cache isn't syncing.                   |
-| speakers       |   ❗    | [Partial](https://gitlab.com/slumber/multi-user/-/issues/65) |
-| vse            |   ❗    |               Mask and Clip not supported yet                |
-| physics        |   ❌    | [Planned](https://gitlab.com/slumber/multi-user/-/issues/45) |
-| libraries      |   ❗    |                           Partial                            |
+| Name           | Status |                                 Comment                                 |
+| -------------- | :----: | :---------------------------------------------------------------------: |
+| action         |   ✔️    |                                                                         |
+| camera         |   ✔️    |                                                                         |
+| collection     |   ✔️    |                                                                         |
+| gpencil        |   ✔️    |                                                                         |
+| image          |   ✔️    |                                                                         |
+| mesh           |   ✔️    |                                                                         |
+| material       |   ✔️    |                                                                         |
+| node_groups    |   ✔️    |                        Material & Geometry only                         |
+| geometry nodes |   ✔️    |                                                                         |
+| metaball       |   ✔️    |                                                                         |
+| object         |   ✔️    |                                                                         |
+| texts          |   ✔️    |                                                                         |
+| scene          |   ✔️    |                                                                         |
+| world          |   ✔️    |                                                                         |
+| volumes        |   ✔️    |                                                                         |
+| lightprobes    |   ✔️    |                                                                         |
+| physics        |   ✔️    |                                                                         |
+| textures       |   ✔️    |                                                                         |
+| curve          |   ❗    |                      Nurbs surfaces not supported                       |
+| armature       |   ❗    |          Only for Mesh. [Planned for GPencil](https://gitlab.com/slumber/multi-user/-/issues/161). Not stable yet           |
+| particles      |   ❗    |                        The cache isn't syncing.                         |
+| speakers       |   ❗    |      [Partial](https://gitlab.com/slumber/multi-user/-/issues/65)       |
+| vse            |   ❗    |                     Mask and Clip not supported yet                     |
+| libraries      |   ❌    |                                                                         |
+| nla            |   ❌    |                                                                         |
+| texts          |   ❌    | [Planned for v0.5.0](https://gitlab.com/slumber/multi-user/-/issues/81) |
+| compositing    |   ❌    | [Planned for v0.5.0](https://gitlab.com/slumber/multi-user/-/issues/46) |
 
 
 

docs/conf.py

@@ -19,10 +19,10 @@ import sys
 
 project = 'multi-user'
 copyright = '2020, Swann Martinez'
-author = 'Swann Martinez, with contributions from Poochy'
+author = 'Swann Martinez, Poochy, Fabian'
 
 # The full version, including alpha/beta/rc tags
-release = '0.2.0'
+release = '0.5.0-develop'
 
 
 # -- General configuration ---------------------------------------------------

docs/getting_started/quickstart.rst

@@ -108,36 +108,69 @@ Before starting make sure that you have access to the session IP address and por
 1. Fill in your user information
 --------------------------------
 
-Follow the user-info_ section for this step.
+Joining a server 
+=======================
 
-----------------
-2. Network setup
-----------------
+--------------
+Network setup
+--------------
 
 In the network panel, select **JOIN**.
 The **join sub-panel** (see image below) allows you to configure your client to join a
 collaborative session which is already hosted.
 
-.. figure:: img/quickstart_join.png
-   :align: center
-   :alt: Connect menu
+.. figure:: img/server_preset_image_normal_server.png
+    :align: center
+    :width: 200px
 
-   Connection panel
+    Connection pannel
 
 Fill in the fields with your information:
 
 - **IP**: the host's IP address.
 - **Port**: the host's port number.
-- **Connect as admin**: connect yourself with **admin rights** (see :ref:`admin` ) to the session.
-
-.. Maybe something more explicit here
-
-.. note::
-   Additional configuration settings can be found in the :ref:`advanced` section.
 
 Once you've configured every field, hit the button **CONNECT** to join the session !
 When the :ref:`session-status` is **ONLINE** you are online and ready to start co-creating.
 
+.. note::
+   
+   If you want to have **administrator rights** (see :ref:`admin` ) on the server, just enter the password created by the host in the **Connect as admin** section
+
+    .. figure:: img/server_preset_image_admin.png
+        :align: center
+        :width: 200px
+
+        Admin password
+
+---------------
+Server presets
+---------------
+
+You can save your server presets in a preset list below the 'JOIN' and 'HOST' buttons. This allows you to quickly access and manage your servers.
+
+To add a server, first enter the ip address and the port (plus the password if needed), then click on the + icon to add a name to your preset. To remove a server from the list, select it and click on the - icon.
+
+.. figure:: img/server_preset_exemple.gif
+    :align: center
+    :width: 200px
+
+.. warning:: Be careful, if you don't rename your new preset, or if it has the same name as an existing preset, the old preset will be overwritten.
+
+    .. figure:: img/server_preset_image_report.png
+        :align: center
+        :width: 200px
+
+.. note:: 
+   
+   Two presets are already present when the addon is launched:
+
+  - The 'localhost' preset, to host and join a local session quickly
+  - The 'public session' preset, to join the public sessions of the multi-user server (official discord to participate : https://discord.gg/aBPvGws)
+
+.. note::
+   Additional configuration settings can be found in the :ref:`advanced` section.
+
 .. note::
    When starting a **dedicated server**, the session status screen will take you to the **LOBBY**, awaiting an admin to start the session.
 
@@ -182,8 +215,10 @@ One of the most vital tools is the **Online user panel**. It lists all connected
 users' information including your own:
 
 * **Role** : if a user is an admin or a regular user.
-* **Location**: Where the user is actually working.
+* **Username** : Name of the user.
+* **Mode** : User's active editing mode (edit_mesh, paint,etc.).
 * **Frame**: When (on which frame) the user is working.
+* **Location**: Where the user is actually working.
 * **Ping**: user's connection delay in milliseconds
 
 .. figure:: img/quickstart_users.png
@@ -240,6 +275,7 @@ it draw users' related information in your viewport such as:
 
 * Username
 * User point of view
+* User active mode
 * User selection
 
 .. figure:: img/quickstart_presence.png

docs/tutorials/hosting_guide.rst

@@ -76,7 +76,7 @@ Hit 'Create a network'(see image below) and go to the network settings.
     :align: center
     :width: 450px
 
-    Network page
+    Admin password
 
 Now that the network is created, let's configure it.
 
@@ -212,14 +212,14 @@ You can run the dedicated server on any platform by following these steps:
 
     .. code-block:: bash
 
-        replication.server
+        replication.serve
 
 .. hint::
     You can also specify a custom **port** (-p), **timeout** (-t), **admin password** (-pwd), **log level (ERROR, WARNING, INFO or DEBUG)** (-l) and **log file** (-lf) with the following optional arguments
 
     .. code-block:: bash
 
-        replication.server -p 5555 -pwd admin -t 5000 -l INFO -lf server.log
+        replication.serve -p 5555 -pwd admin -t 5000 -l INFO -lf server.log
 
 Here, for example, a server is instantiated on port 5555, with password 'admin', a 5 second timeout, and logging enabled.
 
@@ -562,7 +562,7 @@ The default Docker image essentially runs the equivalent of:
 
     .. code-block:: bash
 
-        replication.server -pwd admin -p 5555 -t 5000 -l DEBUG -lf multiuser_server.log
+        replication.serve -pwd admin -p 5555 -t 5000 -l DEBUG -lf multiuser_server.log
 
 This means the server will be launched with 'admin' as the administrator password, run on ports 5555:5558, use a timeout of 5 seconds, verbose 'DEBUG' log level, and with log files written to 'multiuser_server.log'. See :ref:`cmd-line` for a description of optional parameters.
 
@@ -572,7 +572,7 @@ For example, I would like to launch my server with a different administrator pas
 
     .. code-block:: bash
         
-        python3 -m replication.server -pwd supersecretpassword -p 5555 -t 3000 -l DEBUG -lf logname.log
+        replication.serve -pwd supersecretpassword -p 5555 -t 3000 -l DEBUG -lf logname.log
 
 Now, my configuration should look like this:
 
@@ -691,7 +691,7 @@ We're finally ready to launch the server. Simply run:
 
     .. code-block:: bash
         
-        python3 -m replication.server -p 5555 -pwd admin -t 5000 -l INFO -lf server.log
+        replication.serve -p 5555 -pwd admin -t 5000 -l INFO -lf server.log
 
 See :ref:`cmd-line` for a description of optional parameters
 

multi_user/__init__.py

@@ -19,7 +19,7 @@
 bl_info = {
     "name": "Multi-User",
     "author": "Swann Martinez",
-    "version": (0, 3, 0),
+    "version": (0, 4, 1),
     "description": "Enable real-time collaborative workflow inside blender",
     "blender": (2, 82, 0),
     "location": "3D View > Sidebar > Multi-User tab",
@@ -41,11 +41,12 @@ import bpy
 from bpy.app.handlers import persistent
 
 from . import environment
-from uuid import uuid4
-LIBS = os.path.dirname(os.path.abspath(__file__))+"/libs/replication"
+
 
 module_error_msg = "Insufficient rights to install the multi-user \
                 dependencies, aunch blender with administrator rights."
+
+
 def register():
     # Setup logging policy
     logging.basicConfig(
@@ -53,18 +54,14 @@ def register():
         datefmt='%H:%M:%S',
         level=logging.INFO)
 
-    for module_name in list(sys.modules.keys()):
-        if 'replication' in module_name:
-            del sys.modules[module_name]
-
-    if LIBS not in sys.path:
-        logging.info('Adding local modules dir to the path')
-        sys.path.insert(0, LIBS)
-    
     try:
+        environment.register()
+
         from . import presence
         from . import operators
+        from . import handlers
         from . import ui
+        from . import icons
         from . import preferences
         from . import addon_updater_ops
 
@@ -72,10 +69,12 @@ def register():
         addon_updater_ops.register(bl_info)
         presence.register()
         operators.register()
+        handlers.register()
         ui.register()
+        icons.register()
     except ModuleNotFoundError as e:
         raise Exception(module_error_msg)
-        logging.error(e)
+        logging.error(module_error_msg)
  
     bpy.types.WindowManager.session = bpy.props.PointerProperty(
         type=preferences.SessionProps)
@@ -86,21 +85,28 @@ def register():
         type=preferences.SessionUser
     )
     bpy.types.WindowManager.user_index = bpy.props.IntProperty()
+    bpy.types.WindowManager.server_index = bpy.props.IntProperty()
     bpy.types.TOPBAR_MT_file_import.append(operators.menu_func_import)
+    bpy.types.TOPBAR_MT_file_export.append(operators.menu_func_export)
 
 
 def unregister():
     from . import presence
     from . import operators
+    from . import handlers
     from . import ui
+    from . import icons
     from . import preferences
     from . import addon_updater_ops
 
     bpy.types.TOPBAR_MT_file_import.remove(operators.menu_func_import)
+    bpy.types.TOPBAR_MT_file_export.remove(operators.menu_func_export)
 
     presence.unregister()
     addon_updater_ops.unregister()
     ui.unregister()
+    icons.unregister()
+    handlers.unregister()
     operators.unregister()
     preferences.unregister()
 
@@ -108,3 +114,6 @@ def unregister():
     del bpy.types.ID.uuid
     del bpy.types.WindowManager.online_users
     del bpy.types.WindowManager.user_index
+    del bpy.types.WindowManager.server_index
+
+    environment.unregister()

multi_user/addon_updater.py

@@ -1688,10 +1688,7 @@ class GitlabEngine(object):
 		# Could clash with tag names and if it does, it will
 		# download TAG zip instead of branch zip to get
 		# direct path, would need.
-		return "{}{}{}".format(
-			self.form_repo_url(updater),
-			"/repository/archive.zip?sha=",
-			branch)
+		return f"https://gitlab.com/slumber/multi-user/-/jobs/artifacts/{branch}/download?job=build"
 
 	def get_zip_url(self, sha, updater):
 		return "{base}/repository/archive.zip?sha={sha}".format(

multi_user/bl_types/__init__.py

@@ -16,38 +16,40 @@
 # ##### END GPL LICENSE BLOCK #####
 
 import bpy
-from replication.protocol import ReplicatedDatablock
 
 __all__ = [
     'bl_object',
     'bl_mesh',
-    # 'bl_camera',
+    'bl_camera',
     'bl_collection',
-    # 'bl_curve',
-    # 'bl_gpencil',
-    # 'bl_image',
-    # 'bl_light',
+    'bl_curve',
+    'bl_gpencil',
+    'bl_image',
+    'bl_light',
     'bl_scene',
     'bl_material',
-    # 'bl_library',
-    # 'bl_armature',
-    # 'bl_action',
-    # 'bl_world',
-    # 'bl_metaball',
-    # 'bl_lattice',
-    # 'bl_lightprobe',
-    # 'bl_speaker',
-    # 'bl_font',
-    # 'bl_sound',
-    # 'bl_file',
-    # 'bl_sequencer',
-    # 'bl_node_group',
-    # 'bl_texture',
-    # "bl_particle",
+    'bl_armature',
+    'bl_action',
+    'bl_world',
+    'bl_metaball',
+    'bl_lattice',
+    'bl_lightprobe',
+    'bl_speaker',
+    'bl_font',
+    'bl_sound',
+    'bl_file',
+    'bl_node_group',
+    'bl_texture',
+    "bl_particle",
 ]  # Order here defines execution order
 
-# if bpy.app.version[1] >= 91:
-#     __all__.append('bl_volume')
+if bpy.app.version >= (2,91,0):
+    __all__.append('bl_volume')
+
+from . import *
+
+def types_to_register():
+    return __all__
 
 from replication.protocol import DataTranslationProtocol
 

multi_user/bl_types/bl_action.py

@@ -24,14 +24,9 @@ from enum import Enum
 
 from .. import utils
 from .dump_anything import (
-    Dumper,
-    Loader,
-    np_dump_collection,
-    np_load_collection,
-    remove_items_from_dict)
-from .bl_datablock import stamp_uuid
+    Dumper, Loader, np_dump_collection, np_load_collection, remove_items_from_dict)
 from replication.protocol import ReplicatedDatablock
-from replication.objects import Node
+from .bl_datablock import resolve_datablock_from_uuid
 
 KEYFRAME = [
     'amplitude',
@@ -46,7 +41,6 @@ KEYFRAME = [
     'interpolation',
 ]
 
-
 def has_action(datablock):
     """ Check if the datablock datablock has actions
     """
@@ -75,8 +69,7 @@ def load_driver(target_datablock, src_driver):
     loader = Loader()
     drivers = target_datablock.animation_data.drivers
     src_driver_data = src_driver['driver']
-    new_driver = drivers.new(
-        src_driver['data_path'], index=src_driver['array_index'])
+    new_driver = drivers.new(src_driver['data_path'], index=src_driver['array_index'])
 
     # Settings
     new_driver.driver.type = src_driver_data['type']
@@ -92,10 +85,10 @@ def load_driver(target_datablock, src_driver):
 
         for src_target in src_var_data['targets']:
             src_target_data = src_var_data['targets'][src_target]
-            new_var.targets[src_target].id = utils.resolve_from_id(
-                src_target_data['id'], src_target_data['id_type'])
-            loader.load(
-                new_var.targets[src_target],  src_target_data)
+            src_id = src_target_data.get('id')
+            if src_id:
+                new_var.targets[src_target].id = utils.resolve_from_id(src_target_data['id'], src_target_data['id_type'])
+            loader.load(new_var.targets[src_target],  src_target_data)
 
     # Fcurve
     new_fcurve = new_driver.keyframe_points
@@ -128,7 +121,6 @@ def dump_fcurve(fcurve: bpy.types.FCurve, use_numpy: bool = True) -> dict:
         points = fcurve.keyframe_points
         fcurve_data['keyframes_count'] = len(fcurve.keyframe_points)
         fcurve_data['keyframe_points'] = np_dump_collection(points, KEYFRAME)
-
     else:  # Legacy method
         dumper = Dumper()
         fcurve_data["keyframe_points"] = []
@@ -138,6 +130,18 @@ def dump_fcurve(fcurve: bpy.types.FCurve, use_numpy: bool = True) -> dict:
                 dumper.dump(k)
             )
 
+    if fcurve.modifiers:
+        dumper = Dumper()
+        dumper.exclude_filter = [
+            'is_valid',
+            'active'
+        ]
+        dumped_modifiers = []
+        for modfifier in fcurve.modifiers:
+            dumped_modifiers.append(dumper.dump(modfifier))
+
+        fcurve_data['modifiers'] = dumped_modifiers
+
     return fcurve_data
 
 
@@ -150,7 +154,7 @@ def load_fcurve(fcurve_data, fcurve):
         :type fcurve: bpy.types.FCurve
     """
     use_numpy = fcurve_data.get('use_numpy')
-
+    loader = Loader()
     keyframe_points = fcurve.keyframe_points
 
     # Remove all keyframe points
@@ -195,37 +199,55 @@ def load_fcurve(fcurve_data, fcurve):
 
             fcurve.update()
 
+    dumped_fcurve_modifiers = fcurve_data.get('modifiers', None)
 
-def dump_animation_data(datablock, data):
+    if dumped_fcurve_modifiers:
+        # clear modifiers
+        for fmod in fcurve.modifiers:
+            fcurve.modifiers.remove(fmod)
+
+        # Load each modifiers in order
+        for modifier_data in dumped_fcurve_modifiers:
+            modifier = fcurve.modifiers.new(modifier_data['type'])
+
+            loader.load(modifier, modifier_data)
+    elif fcurve.modifiers:
+        for fmod in fcurve.modifiers:
+            fcurve.modifiers.remove(fmod)
+
+
+def dump_animation_data(datablock):
+    animation_data = {}
     if has_action(datablock):
-        dumper = Dumper()
-        dumper.include_filter = ['action']
-        data['animation_data'] = dumper.dump(datablock.animation_data)
-
+        animation_data['action'] = datablock.animation_data.action.uuid
     if has_driver(datablock):
-        dumped_drivers = {'animation_data': {'drivers': []}}
+        animation_data['drivers'] = []
         for driver in datablock.animation_data.drivers:
-            dumped_drivers['animation_data']['drivers'].append(
-                dump_driver(driver))
+            animation_data['drivers'].append(dump_driver(driver))
 
-        data.update(dumped_drivers)
+    return animation_data
 
 
-def load_animation_data(data, datablock):
+def load_animation_data(animation_data, datablock):
     # Load animation data
-    if 'animation_data' in data.keys():
+    if animation_data:
         if datablock.animation_data is None:
             datablock.animation_data_create()
 
         for d in datablock.animation_data.drivers:
             datablock.animation_data.drivers.remove(d)
 
-        if 'drivers' in data['animation_data']:
-            for driver in data['animation_data']['drivers']:
+        if 'drivers' in animation_data:
+            for driver in animation_data['drivers']:
                 load_driver(datablock, driver)
 
-        if 'action' in data['animation_data']:
-            datablock.animation_data.action = bpy.data.actions[data['animation_data']['action']]
+        action = animation_data.get('action')
+        if action:
+            action = resolve_datablock_from_uuid(action, bpy.data.actions)
+            datablock.animation_data.action = action
+        elif datablock.animation_data.action:
+            datablock.animation_data.action = None
+
     # Remove existing animation data if there is not more to load
     elif hasattr(datablock, 'animation_data') and datablock.animation_data:
         datablock.animation_data_clear()
@@ -239,6 +261,8 @@ def resolve_animation_dependencies(datablock):
 
 
 class BlAction(ReplicatedDatablock):
+    use_delta = True
+
     bl_id = "actions"
     bl_class = bpy.types.Action
     bl_check_common = False
@@ -271,8 +295,6 @@ class BlAction(ReplicatedDatablock):
 
     @staticmethod
     def dump(datablock: object) -> dict:
-        stamp_uuid(datablock)
-
         dumper = Dumper()
         dumper.exclude_filter = [
             'name_full',
@@ -295,3 +317,15 @@ class BlAction(ReplicatedDatablock):
             data["fcurves"].append(dump_fcurve(fcurve, use_numpy=True))
 
         return data
+
+    @staticmethod
+    def resolve(data: dict) -> object:
+        uuid = data.get('uuid')
+        return resolve_datablock_from_uuid(uuid, bpy.data.actions)
+
+    @staticmethod
+    def resolve_deps(datablock: object) -> [object]:
+        return []
+
+_type = bpy.types.Action
+_class = BlAction

multi_user/bl_types/bl_armature.py

@@ -22,8 +22,9 @@ import mathutils
 
 from .dump_anything import Loader, Dumper
 from .. import presence, operators, utils
-from .bl_datablock import BlDatablock
-
+from replication.protocol import ReplicatedDatablock
+from .bl_datablock import resolve_datablock_from_uuid
+from .bl_action import dump_animation_data, load_animation_data, resolve_animation_dependencies
 
 def get_roll(bone: bpy.types.Bone) -> float:
     """ Compute the actuall roll of a pose bone
@@ -35,16 +36,20 @@ def get_roll(bone: bpy.types.Bone) -> float:
     return bone.AxisRollFromMatrix(bone.matrix_local.to_3x3())[1]
 
 
-class BlArmature(BlDatablock):
+class BlArmature(ReplicatedDatablock):
+    use_delta = True
+
     bl_id = "armatures"
     bl_class = bpy.types.Armature
     bl_check_common = False
     bl_icon = 'ARMATURE_DATA'
     bl_reload_parent = False
 
+    @staticmethod
     def construct(data: dict) -> object:
         return bpy.data.armatures.new(data["name"])
 
+    @staticmethod
     def load(data: dict, datablock: object):
         # Load parent object
         parent_object = utils.find_from_attr(
@@ -55,7 +60,7 @@ class BlArmature(BlDatablock):
 
         if parent_object is None:
             parent_object = bpy.data.objects.new(
-                data['user_name'], target)
+                data['user_name'], datablock)
             parent_object.uuid = data['user']
 
         is_object_in_master = (
@@ -90,10 +95,10 @@ class BlArmature(BlDatablock):
         bpy.ops.object.mode_set(mode='EDIT')
 
         for bone in data['bones']:
-            if bone not in target.edit_bones:
-                new_bone = target.edit_bones.new(bone)
+            if bone not in datablock.edit_bones:
+                new_bone = datablock.edit_bones.new(bone)
             else:
-                new_bone = target.edit_bones[bone]
+                new_bone = datablock.edit_bones[bone]
 
             bone_data = data['bones'].get(bone)
 
@@ -104,7 +109,7 @@ class BlArmature(BlDatablock):
             new_bone.roll =  bone_data['roll']
             
             if 'parent' in bone_data:
-                new_bone.parent = target.edit_bones[data['bones']
+                new_bone.parent = datablock.edit_bones[data['bones']
                                                     [bone]['parent']]
                 new_bone.use_connect = bone_data['use_connect']
 
@@ -119,9 +124,10 @@ class BlArmature(BlDatablock):
         if 'EDIT' in current_mode:
             bpy.ops.object.mode_set(mode='EDIT')
 
-    def dump(datablock: object) -> dict:
-        assert(instance)
+        load_animation_data(data.get('animation_data'), datablock)
 
+    @staticmethod
+    def dump(datablock: object) -> dict:
         dumper = Dumper()
         dumper.depth = 4
         dumper.include_filter = [
@@ -135,14 +141,14 @@ class BlArmature(BlDatablock):
             'name',
             'layers',
         ]
-        data = dumper.dump(instance)
+        data = dumper.dump(datablock)
 
-        for bone in instance.bones:
+        for bone in datablock.bones:
             if bone.parent:
                 data['bones'][bone.name]['parent'] = bone.parent.name
         # get the parent Object
         # TODO: Use id_data instead
-        object_users = utils.get_datablock_users(instance)[0]
+        object_users = utils.get_datablock_users(datablock)[0]
         data['user'] = object_users.uuid
         data['user_name'] = object_users.name
 
@@ -153,7 +159,25 @@ class BlArmature(BlDatablock):
         data['user_scene'] = [
             item.name for item in container_users if isinstance(item, bpy.types.Scene)]
 
-        for bone in instance.bones:
+        for bone in datablock.bones:
             data['bones'][bone.name]['roll'] = get_roll(bone)
 
+        data['animation_data'] = dump_animation_data(datablock)
         return data
+
+    @staticmethod
+    def resolve(data: dict) -> object:
+        uuid = data.get('uuid')
+        name = data.get('name')
+        datablock = resolve_datablock_from_uuid(uuid, bpy.data.armatures)
+        if datablock is None:
+            datablock = bpy.data.armatures.get(name)
+
+        return datablock
+
+    @staticmethod
+    def resolve_deps(datablock: object) -> [object]:
+        return resolve_animation_dependencies(datablock)
+
+_type = bpy.types.Armature
+_class = BlArmature

multi_user/bl_types/bl_camera.py

@@ -20,47 +20,58 @@ import bpy
 import mathutils
 
 from .dump_anything import Loader, Dumper
-from .bl_datablock import BlDatablock
+from replication.protocol import ReplicatedDatablock
+from .bl_datablock import resolve_datablock_from_uuid
+from .bl_action import dump_animation_data, load_animation_data, resolve_animation_dependencies
 
 
-class BlCamera(BlDatablock):
+class BlCamera(ReplicatedDatablock):
+    use_delta = True
+
     bl_id = "cameras"
     bl_class = bpy.types.Camera
     bl_check_common = False
     bl_icon = 'CAMERA_DATA'
     bl_reload_parent = False
 
+
+    @staticmethod
     def construct(data: dict) -> object:
         return bpy.data.cameras.new(data["name"])
 
 
+    @staticmethod
     def load(data: dict, datablock: object):
         loader = Loader()       
-        loader.load(target, data)
+        loader.load(datablock, data)
 
         dof_settings = data.get('dof')
 
+        load_animation_data(data.get('animation_data'), datablock)
+
         # DOF settings
         if dof_settings:
-            loader.load(target.dof, dof_settings)
+            loader.load(datablock.dof, dof_settings)
 
         background_images = data.get('background_images')
 
-        target.background_images.clear()
-        
+        datablock.background_images.clear()
+        # TODO: Use image uuid
         if background_images:
             for img_name, img_data in background_images.items():
                 img_id = img_data.get('image')
                 if img_id:
-                    target_img = target.background_images.new()
+                    target_img = datablock.background_images.new()
                     target_img.image = bpy.data.images[img_id]
                     loader.load(target_img, img_data)
 
+                    img_user = img_data.get('image_user')
+                    if img_user:
+                        loader.load(target_img.image_user, img_user)
+
+
+    @staticmethod
     def dump(datablock: object) -> dict:
-        assert(instance)
-
-        # TODO: background image support
-        
         dumper = Dumper()
         dumper.depth = 3
         dumper.include_filter = [
@@ -101,9 +112,26 @@ class BlCamera(BlDatablock):
             'scale',
             'use_flip_x',
             'use_flip_y',
-            'image'
+            'image_user',
+            'image',
+            'frame_duration',
+            'frame_start',
+            'frame_offset',
+            'use_cyclic',
+            'use_auto_refresh'
         ]
-        return dumper.dump(instance)
+        data =  dumper.dump(datablock)
+        data['animation_data'] = dump_animation_data(datablock)
+
+        for index, image in enumerate(datablock.background_images):
+            if image.image_user:
+                data['background_images'][index]['image_user'] = dumper.dump(image.image_user)
+        return data
+
+    @staticmethod
+    def resolve(data: dict) -> object:
+        uuid = data.get('uuid')
+        return resolve_datablock_from_uuid(uuid, bpy.data.cameras)
 
     @staticmethod
     def resolve_deps(datablock: object) -> [object]:
@@ -112,4 +140,9 @@ class BlCamera(BlDatablock):
             if background.image:
                 deps.append(background.image)
 
+        deps.extend(resolve_animation_dependencies(datablock))
+
         return deps
+
+_type = bpy.types.Camera
+_class = BlCamera

multi_user/bl_types/bl_collection.py

@@ -19,10 +19,12 @@
 import bpy
 import mathutils
 
+from deepdiff import DeepDiff, Delta
+
 from .. import utils
-from .dump_anything import Loader, Dumper
 from replication.protocol import ReplicatedDatablock
-from replication.objects import Node
+from .dump_anything import Loader, Dumper
+from .bl_datablock import resolve_datablock_from_uuid
 
 def dump_collection_children(collection):
     collection_children = []
@@ -88,14 +90,16 @@ class BlCollection(ReplicatedDatablock):
     bl_check_common = True
     bl_reload_parent = False
 
+    use_delta = True
+
     @staticmethod
     def construct(data: dict) -> object:
-        datablock = bpy.data.collections.new(node.data["name"])
-        return datablock
+        instance = bpy.data.collections.new(data["name"])
+        return instance
+
 
     @staticmethod
     def load(data: dict, datablock: object):
-        data = node.data
         loader = Loader()
         loader.load(datablock, data)
 
@@ -109,10 +113,9 @@ class BlCollection(ReplicatedDatablock):
         # Keep other user from deleting collection object by flushing their history
         utils.flush_history()
 
+
     @staticmethod
     def dump(datablock: object) -> dict:
-        assert(datablock)
-
         dumper = Dumper()
         dumper.depth = 1
         dumper.include_filter = [
@@ -129,9 +132,33 @@ class BlCollection(ReplicatedDatablock):
 
         return data
 
+
+    @staticmethod
+    def resolve(data: dict) -> object:
+        uuid = data.get('uuid')
+        return  resolve_datablock_from_uuid(uuid, bpy.data.collections)
+
+
     @staticmethod
     def resolve_deps(datablock: object) -> [object]:
         return resolve_collection_dependencies(datablock)
 
+    @staticmethod
+    def compute_delta(last_data: dict, current_data: dict) -> Delta:
+        diff_params = {
+            'ignore_order': True,
+            'report_repetition': True
+        }
+        delta_params = {
+            # 'mutate': True
+        }
+
+        return Delta(
+            DeepDiff(last_data,
+                     current_data,
+                     cache_size=5000,
+                     **diff_params),
+            **delta_params)
+
 _type = bpy.types.Collection
 _class = BlCollection

multi_user/bl_types/bl_curve.py

@@ -21,13 +21,15 @@ import bpy.types as T
 import mathutils
 import logging
 
-from .. import utils
-from .bl_datablock import BlDatablock
+from ..utils import get_preferences
+from replication.protocol import ReplicatedDatablock
 from .dump_anything import (Dumper, Loader,
                             np_load_collection,
                             np_dump_collection)
-from .bl_datablock import get_datablock_from_uuid
 from .bl_material import dump_materials_slots, load_materials_slots
+from .bl_datablock import resolve_datablock_from_uuid
+from .bl_action import dump_animation_data, load_animation_data, resolve_animation_dependencies
+
 
 SPLINE_BEZIER_POINT = [
     # "handle_left_type",
@@ -134,25 +136,31 @@ SPLINE_METADATA = [
 ]
 
 
-class BlCurve(BlDatablock):
+class BlCurve(ReplicatedDatablock):
+    use_delta = True
+
     bl_id = "curves"
     bl_class = bpy.types.Curve
     bl_check_common = False
     bl_icon = 'CURVE_DATA'
     bl_reload_parent = False
 
+    @staticmethod
     def construct(data: dict) -> object:
         return bpy.data.curves.new(data["name"], data["type"])
 
+    @staticmethod
     def load(data: dict, datablock: object):
-        loader = Loader()
-        loader.load(target, data)
+        load_animation_data(data.get('animation_data'), datablock)
 
-        target.splines.clear()
+        loader = Loader()
+        loader.load(datablock, data)
+
+        datablock.splines.clear()
 
         # load splines
         for spline in data['splines'].values():
-            new_spline = target.splines.new(spline['type'])
+            new_spline = datablock.splines.new(spline['type'])
 
             # Load curve geometry data
             if new_spline.type == 'BEZIER':
@@ -173,15 +181,14 @@ class BlCurve(BlDatablock):
             # MATERIAL SLOTS
             src_materials = data.get('materials', None)
             if src_materials:
-                load_materials_slots(src_materials, target.materials)
+                load_materials_slots(src_materials, datablock.materials)
 
+    @staticmethod
     def dump(datablock: object) -> dict:
-        assert(instance)
         dumper = Dumper()
         # Conflicting attributes
         # TODO: remove them with the NURBS support
         dumper.include_filter = CURVE_METADATA
-
         dumper.exclude_filter = [
             'users',
             'order_u',
@@ -190,14 +197,16 @@ class BlCurve(BlDatablock):
             'point_count_u',
             'active_textbox'
         ]
-        if instance.use_auto_texspace:
+        if datablock.use_auto_texspace:
             dumper.exclude_filter.extend([
                 'texspace_location',
                 'texspace_size'])
-        data = dumper.dump(instance)
+        data = dumper.dump(datablock)
+
+        data['animation_data'] = dump_animation_data(datablock)
         data['splines'] = {}
 
-        for index, spline in enumerate(instance.splines):
+        for index, spline in enumerate(datablock.splines):
             dumper.depth = 2
             dumper.include_filter = SPLINE_METADATA
             spline_data = dumper.dump(spline)
@@ -211,19 +220,25 @@ class BlCurve(BlDatablock):
                 spline.bezier_points, SPLINE_BEZIER_POINT)
             data['splines'][index] = spline_data
 
-        if isinstance(instance, T.SurfaceCurve):
+        if isinstance(datablock, T.SurfaceCurve):
             data['type'] = 'SURFACE'
-        elif isinstance(instance, T.TextCurve):
+        elif isinstance(datablock, T.TextCurve):
             data['type'] = 'FONT'
-        elif isinstance(instance, T.Curve):
+        elif isinstance(datablock, T.Curve):
             data['type'] = 'CURVE'
 
-        data['materials'] = dump_materials_slots(instance.materials)
+        data['materials'] = dump_materials_slots(datablock.materials)
 
         return data
 
+    @staticmethod
+    def resolve(data: dict) -> object:
+        uuid = data.get('uuid')
+        return resolve_datablock_from_uuid(uuid, bpy.data.curves)
+
     @staticmethod
     def resolve_deps(datablock: object) -> [object]:
+        # TODO: resolve material
         deps = []
         curve = datablock
 
@@ -234,15 +249,19 @@ class BlCurve(BlDatablock):
                 curve.font_bold_italic,
                 curve.font_italic])
 
-        for material in curve.materials:
+        for material in datablock.materials:
             if material:
                 deps.append(material)
 
+        deps.extend(resolve_animation_dependencies(datablock))
+
         return deps
 
-    def diff(self):
-        if 'EDIT' in bpy.context.mode \
-                and not self.preferences.sync_flags.sync_during_editmode:
-            return False
-        else:
-            return super().diff()
+    @staticmethod
+    def needs_update(datablock: object, data: dict) -> bool:
+        return 'EDIT' not in bpy.context.mode \
+            or get_preferences().sync_flags.sync_during_editmode
+
+
+_type = [bpy.types.Curve, bpy.types.TextCurve]
+_class = BlCurve

multi_user/bl_types/bl_datablock.py

@@ -23,14 +23,10 @@ import bpy
 import mathutils
 from replication.constants import DIFF_BINARY, DIFF_JSON, UP
 from replication.protocol import ReplicatedDatablock
-from replication.objects import Node
-
-from uuid import uuid4
 
 from .. import utils
 from .dump_anything import Dumper, Loader
 
-
 def get_datablock_from_uuid(uuid, default, ignore=[]):
     if not uuid:
         return default
@@ -42,18 +38,8 @@ def get_datablock_from_uuid(uuid, default, ignore=[]):
                     return item
     return default
 
-
-def resolve_datablock_from_root(node:Node, root)->object:
-    datablock_ref = utils.find_from_attr('uuid', node.uuid, root)
-
-    if not datablock_ref:
-        try:
-            datablock_ref = root[node.data['name']]
-        except Exception:
-            pass
-
-    return datablock_ref
-
-def stamp_uuid(datablock):
-    if not datablock.uuid:
-        datablock.uuid = str(uuid4())
+def resolve_datablock_from_uuid(uuid, bpy_collection):
+    for item in bpy_collection:
+        if getattr(item, 'uuid', None) == uuid:
+            return item
+    return None

multi_user/bl_types/bl_file.py

@@ -19,7 +19,7 @@
 import logging
 import os
 import sys
-from pathlib import Path
+from pathlib import Path, WindowsPath, PosixPath
 
 import bpy
 import mathutils
@@ -27,6 +27,7 @@ from replication.constants import DIFF_BINARY, UP
 from replication.protocol import ReplicatedDatablock
 
 from .. import utils
+from ..utils import get_preferences
 from .dump_anything import Dumper, Loader
 
 
@@ -58,33 +59,16 @@ class BlFile(ReplicatedDatablock):
     bl_icon = 'FILE'
     bl_reload_parent = True
 
-    def __init__(self, *args, **kwargs):
-        super().__init__(*args, **kwargs)
-        self.instance = kwargs.get('instance', None)
+    @staticmethod
+    def construct(data: dict) -> object:
+        return Path(get_filepath(data['name']))
 
-        if self.instance and not self.instance.exists():
-            raise FileNotFoundError(str(self.instance))
+    @staticmethod
+    def resolve(data: dict) -> object:
+        return Path(get_filepath(data['name']))
 
-        self.preferences = utils.get_preferences()
-
-    def resolve(self, construct = True):
-        self.instance = Path(get_filepath(self.data['name']))
-        
-        file_exists = self.instance.exists()
-        if not file_exists:
-            logging.debug("File don't exist, loading it.")
-            self._load(self.data, self.instance)
-        
-        return file_exists
-
-
-    def push(self, socket, identity=None, check_data=False):
-        super().push(socket, identity=None, check_data=False)
-        
-        if self.preferences.clear_memory_filecache:
-                del self.data['file']
-
-    def dump(self, instance=None):
+    @staticmethod
+    def dump(datablock: object) -> dict:
         """
         Read the file and return a dict as:
         {
@@ -96,44 +80,62 @@ class BlFile(ReplicatedDatablock):
         logging.info(f"Extracting file metadata")
 
         data = {
-            'name': self.instance.name,
+            'name': datablock.name,
         }
 
-        logging.info(
-            f"Reading {self.instance.name} content: {self.instance.stat().st_size} bytes")
+        logging.info(f"Reading {datablock.name} content: {datablock.stat().st_size} bytes")
 
         try:
-            file = open(self.instance, "rb")
+            file = open(datablock, "rb")
             data['file'] = file.read()
 
             file.close()
         except IOError:
-            logging.warning(f"{self.instance} doesn't exist, skipping")
+            logging.warning(f"{datablock} doesn't exist, skipping")
         else:
             file.close()
 
         return data
 
-    def load(self, data, target):
+    @staticmethod
+    def load(data: dict, datablock: object):
         """
         Writing the file
         """
 
         try:
-            file = open(target, "wb")
+            file = open(datablock, "wb")
             file.write(data['file'])
             
-            if self.preferences.clear_memory_filecache:
-                del self.data['file']
+            if get_preferences().clear_memory_filecache:
+                del data['file']
         except IOError:
-            logging.warning(f"{target} doesn't exist, skipping")
+            logging.warning(f"{datablock} doesn't exist, skipping")
         else:
             file.close()
 
-    def diff(self):
-        if self.preferences.clear_memory_filecache:
+    @staticmethod
+    def resolve_deps(datablock: object) -> [object]:
+        return []
+    
+    @staticmethod
+    def needs_update(datablock: object, data:dict)-> bool:
+        if get_preferences().clear_memory_filecache:
             return False
         else:
-            memory_size = sys.getsizeof(self.data['file'])-33
-            disk_size = self.instance.stat().st_size
-            return memory_size != disk_size
+            if not datablock:
+                return None
+
+            if not data:
+                return True
+
+            memory_size = sys.getsizeof(data['file'])-33
+            disk_size = datablock.stat().st_size
+
+            if memory_size != disk_size:
+                return True
+            else:
+                return False
+
+_type = [WindowsPath, PosixPath]
+_class = BlFile

multi_user/bl_types/bl_font.py

@@ -22,18 +22,19 @@ from pathlib import Path
 
 import bpy
 
-from .bl_datablock import BlDatablock
+from replication.protocol import ReplicatedDatablock
 from .bl_file import get_filepath, ensure_unpacked
 from .dump_anything import Dumper, Loader
+from .bl_datablock import resolve_datablock_from_uuid
 
-
-class BlFont(BlDatablock):
+class BlFont(ReplicatedDatablock):
     bl_id = "fonts"
     bl_class = bpy.types.VectorFont
     bl_check_common = False
     bl_icon = 'FILE_FONT'
     bl_reload_parent = False
 
+    @staticmethod
     def construct(data: dict) -> object:
         filename = data.get('filename')
 
@@ -42,25 +43,29 @@ class BlFont(BlDatablock):
         else:
             return bpy.data.fonts.load(get_filepath(filename))
 
-    def load(self, data, target):
+    @staticmethod
+    def load(data: dict, datablock: object):
         pass
 
-    def dump(self, instance=None):
-        if instance.filepath  == '<builtin>':
+    @staticmethod
+    def dump(datablock: object) -> dict:
+        if datablock.filepath  == '<builtin>':
             filename = '<builtin>'
         else:
-            filename = Path(instance.filepath).name
+            filename = Path(datablock.filepath).name
 
         if not filename:
-            raise FileExistsError(instance.filepath)
+            raise FileExistsError(datablock.filepath)
 
         return {
             'filename': filename,
-            'name': instance.name
+            'name': datablock.name
         }
 
-    def diff(self):
-        return False
+    @staticmethod
+    def resolve(data: dict) -> object:
+        uuid = data.get('uuid')
+        return resolve_datablock_from_uuid(uuid, bpy.data.fonts)
 
     @staticmethod
     def resolve_deps(datablock: object) -> [object]:
@@ -71,3 +76,10 @@ class BlFont(BlDatablock):
             deps.append(Path(bpy.path.abspath(datablock.filepath)))
 
         return deps
+
+    @staticmethod
+    def needs_update(datablock: object, data:dict)-> bool:
+        return False
+
+_type = bpy.types.VectorFont
+_class = BlFont

multi_user/bl_types/bl_gpencil.py

@@ -24,10 +24,12 @@ from .dump_anything import  (Dumper,
                                     Loader,
                                     np_dump_collection,
                                     np_load_collection)
-from .bl_datablock import BlDatablock
-
-# GPencil data api is structured as it follow: 
-# GP-Object --> GP-Layers --> GP-Frames --> GP-Strokes --> GP-Stroke-Points
+from replication.protocol import ReplicatedDatablock
+from .bl_datablock import resolve_datablock_from_uuid
+from .bl_action import dump_animation_data, load_animation_data, resolve_animation_dependencies
+from ..utils import get_preferences
+from ..timers import is_annotating
+from .bl_material import load_materials_slots, dump_materials_slots
 
 STROKE_POINT = [
     'co',
@@ -51,12 +53,12 @@ STROKE = [
     "uv_translation",
     "vertex_color_fill",
 ]
-if bpy.app.version[1] >= 91:
+if bpy.app.version >= (2,91,0):
     STROKE.append('use_cyclic')
 else:
     STROKE.append('draw_cyclic')
 
-if bpy.app.version[1] >= 83:
+if bpy.app.version >= (2,83,0):
     STROKE_POINT.append('vertex_color')
 
 def dump_stroke(stroke):
@@ -64,36 +66,9 @@ def dump_stroke(stroke):
 
         :param stroke: target grease pencil stroke
         :type stroke: bpy.types.GPencilStroke
-        :return: dict
+        :return: (p_count, p_data)
     """
-
-    assert(stroke)
-
-    dumper = Dumper()
-    dumper.include_filter = [
-        "aspect",
-        "display_mode",
-        "draw_cyclic",
-        "end_cap_mode",
-        "hardeness",
-        "line_width",
-        "material_index",
-        "start_cap_mode",
-        "uv_rotation",
-        "uv_scale",
-        "uv_translation",
-        "vertex_color_fill",
-    ]
-    dumped_stroke = dumper.dump(stroke)
-
-    # Stoke points
-    p_count = len(stroke.points)
-    dumped_stroke['p_count'] = p_count
-    dumped_stroke['points'] = np_dump_collection(stroke.points, STROKE_POINT)
-
-    # TODO: uv_factor, uv_rotation
-
-    return dumped_stroke
+    return (len(stroke.points), np_dump_collection(stroke.points, STROKE_POINT))
 
 
 def load_stroke(stroke_data, stroke):
@@ -106,12 +81,13 @@ def load_stroke(stroke_data, stroke):
     """
     assert(stroke and stroke_data)
 
-    stroke.points.add(stroke_data["p_count"])
-    np_load_collection(stroke_data['points'], stroke.points, STROKE_POINT)
+    stroke.points.add(stroke_data[0])
+    np_load_collection(stroke_data[1], stroke.points, STROKE_POINT)
 
     # HACK: Temporary fix to trigger a BKE_gpencil_stroke_geometry_update to 
     # fix fill issues
-    stroke.uv_scale = stroke_data["uv_scale"]
+    stroke.uv_scale = 1.0
+
 
 def dump_frame(frame):
     """ Dump a grease pencil frame to a dict
@@ -145,12 +121,15 @@ def load_frame(frame_data, frame):
 
     assert(frame and frame_data)
 
+    # Load stroke points
     for stroke_data in frame_data['strokes_points']:
         target_stroke = frame.strokes.new()
         load_stroke(stroke_data, target_stroke)
 
+    # Load stroke metadata
     np_load_collection(frame_data['strokes'], frame.strokes, STROKE)
 
+
 def dump_layer(layer):
     """ Dump a grease pencil layer
 
@@ -167,7 +146,6 @@ def dump_layer(layer):
         'opacity',
         'channel_color',
         'color',
-        # 'thickness', #TODO: enabling only for annotation
         'tint_color',
         'tint_factor',
         'vertex_paint_opacity',
@@ -184,7 +162,7 @@ def dump_layer(layer):
         'hide',
         'annotation_hide',
         'lock',
-        # 'lock_frame',
+        'lock_frame',
         # 'lock_material',
         # 'use_mask_layer',
         'use_lights',
@@ -192,12 +170,13 @@ def dump_layer(layer):
         'select',
         'show_points',
         'show_in_front',
+        # 'thickness'
         # 'parent',
         # 'parent_type',
         # 'parent_bone',
         # 'matrix_inverse',
     ]
-    if layer.id_data.is_annotation:
+    if layer.thickness != 0:
         dumper.include_filter.append('thickness')
 
     dumped_layer = dumper.dump(layer)
@@ -228,68 +207,83 @@ def load_layer(layer_data, layer):
         load_frame(frame_data, target_frame)
 
 
-class BlGpencil(BlDatablock):
+def layer_changed(datablock: object, data: dict) -> bool:
+    if datablock.layers.active and \
+            datablock.layers.active.info != data["active_layers"]:
+        return True
+    else:
+        return False
+
+
+def frame_changed(data: dict) -> bool:
+    return bpy.context.scene.frame_current != data["eval_frame"]
+
+class BlGpencil(ReplicatedDatablock):
     bl_id = "grease_pencils"
     bl_class = bpy.types.GreasePencil
     bl_check_common = False
     bl_icon = 'GREASEPENCIL'
     bl_reload_parent = False
 
+    @staticmethod
     def construct(data: dict) -> object:
         return bpy.data.grease_pencils.new(data["name"])
 
+    @staticmethod
     def load(data: dict, datablock: object):
-        target.materials.clear()
-        if "materials" in data.keys():
-            for mat in data['materials']:
-                target.materials.append(bpy.data.materials[mat])
+        # MATERIAL SLOTS
+        src_materials = data.get('materials', None)
+        if src_materials:
+            load_materials_slots(src_materials, datablock.materials)
 
         loader = Loader()
-        loader.load(target, data)
+        loader.load(datablock, data)
 
         # TODO: reuse existing layer
-        for layer in target.layers:
-            target.layers.remove(layer)
+        for layer in datablock.layers:
+            datablock.layers.remove(layer)
 
         if "layers" in data.keys():
             for layer in data["layers"]:
                 layer_data = data["layers"].get(layer)
 
-                # if layer not in target.layers.keys():
-                target_layer = target.layers.new(data["layers"][layer]["info"])
+                # if layer not in datablock.layers.keys():
+                target_layer = datablock.layers.new(data["layers"][layer]["info"])
                 # else:
                 #     target_layer = target.layers[layer]
                 #     target_layer.clear()
 
                 load_layer(layer_data, target_layer)
 
-            target.layers.update()
-
-
+            datablock.layers.update()
 
+    @staticmethod
     def dump(datablock: object) -> dict:
-        assert(instance)
         dumper = Dumper()
         dumper.depth = 2
         dumper.include_filter = [
-            'materials',
             'name',
             'zdepth_offset',
             'stroke_thickness_space',
             'pixel_factor',
             'stroke_depth_order'
         ]
-        data = dumper.dump(instance)
-
+        data = dumper.dump(datablock)
+        data['materials'] = dump_materials_slots(datablock.materials)
         data['layers'] = {}
 
-        for layer in instance.layers:
+        for layer in datablock.layers:
             data['layers'][layer.info] = dump_layer(layer)
 
-        data["active_layers"] = instance.layers.active.info
+        data["active_layers"] = datablock.layers.active.info if datablock.layers.active else "None"
         data["eval_frame"] = bpy.context.scene.frame_current
         return data
 
+    @staticmethod
+    def resolve(data: dict) -> object:
+        uuid = data.get('uuid')
+        return resolve_datablock_from_uuid(uuid, bpy.data.grease_pencils)
+
     @staticmethod
     def resolve_deps(datablock: object) -> [object]:
         deps = []
@@ -299,17 +293,13 @@ class BlGpencil(BlDatablock):
 
         return deps
 
-    def layer_changed(self):
-        return self.instance.layers.active.info != self.data["active_layers"]
+    @staticmethod
+    def needs_update(datablock: object, data: dict) -> bool:
+        return bpy.context.mode == 'OBJECT' \
+            or layer_changed(datablock, data) \
+            or frame_changed(data) \
+            or get_preferences().sync_flags.sync_during_editmode \
+            or is_annotating(bpy.context)
 
-    def frame_changed(self):
-        return  bpy.context.scene.frame_current != self.data["eval_frame"]
-
-    def diff(self):
-        if self.layer_changed() \
-                or self.frame_changed() \
-                or bpy.context.mode == 'OBJECT' \
-                or self.preferences.sync_flags.sync_during_editmode:
-            return super().diff()
-        else:
-            return False
+_type = bpy.types.GreasePencil
+_class = BlGpencil

multi_user/bl_types/bl_image.py

@@ -24,9 +24,12 @@ import bpy
 import mathutils
 
 from .. import utils
-from .bl_datablock import BlDatablock
+from replication.protocol import ReplicatedDatablock
 from .dump_anything import Dumper, Loader
 from .bl_file import get_filepath, ensure_unpacked
+from .bl_datablock import resolve_datablock_from_uuid
+from .bl_action import dump_animation_data, load_animation_data, resolve_animation_dependencies
+
 
 format_to_ext = {
     'BMP': 'bmp',
@@ -48,13 +51,14 @@ format_to_ext = {
 }
 
 
-class BlImage(BlDatablock):
+class BlImage(ReplicatedDatablock):
     bl_id = "images"
     bl_class = bpy.types.Image
     bl_check_common = False
     bl_icon = 'IMAGE_DATA'
     bl_reload_parent = False
 
+    @staticmethod
     def construct(data: dict) -> object:
         return bpy.data.images.new(
             name=data['name'],
@@ -62,18 +66,22 @@ class BlImage(BlDatablock):
             height=data['size'][1]
         )
 
-    def load(self, data, target):
+    @staticmethod
+    def load(data: dict, datablock: object):
         loader = Loader()
-        loader.load(data, target)
+        loader.load(datablock, data)
 
-        target.source = 'FILE'
-        target.filepath_raw = get_filepath(data['filename'])
-        target.colorspace_settings.name = data["colorspace_settings"]["name"]
+        # datablock.name = data.get('name')
+        datablock.source = 'FILE'
+        datablock.filepath_raw = get_filepath(data['filename'])
+        color_space_name = data.get("colorspace")
 
-    def dump(self, instance=None):
-        assert(instance)
+        if color_space_name:
+            datablock.colorspace_settings.name = color_space_name
 
-        filename = Path(instance.filepath).name
+    @staticmethod
+    def dump(datablock: object) -> dict:
+        filename = Path(datablock.filepath).name
 
         data = {
             "filename": filename
@@ -83,23 +91,18 @@ class BlImage(BlDatablock):
         dumper.depth = 2
         dumper.include_filter = [
             "name",
+            # 'source',
             'size',
-            'height',
-            'alpha',
-            'float_buffer',
-            'alpha_mode',
-            'colorspace_settings']
-        data.update(dumper.dump(instance))
+            'alpha_mode']
+        data.update(dumper.dump(datablock))
+        data['colorspace'] = datablock.colorspace_settings.name
+
         return data
 
-    def diff(self):
-        if self.instance.is_dirty:
-            self.instance.save()
-
-        if self.instance and (self.instance.name != self.data['name']):
-            return True
-        else:
-            return False
+    @staticmethod
+    def resolve(data: dict) -> object:
+        uuid = data.get('uuid')
+        return resolve_datablock_from_uuid(uuid, bpy.data.images)
 
     @staticmethod
     def resolve_deps(datablock: object) -> [object]:
@@ -122,3 +125,13 @@ class BlImage(BlDatablock):
             deps.append(Path(bpy.path.abspath(datablock.filepath)))
 
         return deps
+
+    @staticmethod
+    def needs_update(datablock: object, data:dict)-> bool:
+        if datablock.is_dirty:
+            datablock.save()
+
+        return True
+
+_type = bpy.types.Image
+_class = BlImage

multi_user/bl_types/bl_lattice.py

@@ -20,33 +20,41 @@ import bpy
 import mathutils
 
 from .dump_anything import Dumper, Loader, np_dump_collection, np_load_collection
-from .bl_datablock import BlDatablock
+from replication.protocol import ReplicatedDatablock
 from replication.exception import ContextError
+from .bl_datablock import resolve_datablock_from_uuid
+from .bl_action import dump_animation_data, load_animation_data, resolve_animation_dependencies
 
 POINT = ['co', 'weight_softbody', 'co_deform']
 
 
-class BlLattice(BlDatablock):
+class BlLattice(ReplicatedDatablock):
+    use_delta = True
+
     bl_id = "lattices"
     bl_class = bpy.types.Lattice
     bl_check_common = False
     bl_icon = 'LATTICE_DATA'
     bl_reload_parent = False
 
+    @staticmethod
     def construct(data: dict) -> object:
         return bpy.data.lattices.new(data["name"])
 
+    @staticmethod
     def load(data: dict, datablock: object):
-        if target.is_editmode:
+        load_animation_data(data.get('animation_data'), datablock)
+        if datablock.is_editmode:
             raise ContextError("lattice is in edit mode")
 
         loader = Loader()
-        loader.load(target, data)
+        loader.load(datablock, data)
 
-        np_load_collection(data['points'], target.points, POINT)
+        np_load_collection(data['points'], datablock.points, POINT)
 
+    @staticmethod
     def dump(datablock: object) -> dict:
-        if instance.is_editmode:
+        if datablock.is_editmode:
             raise ContextError("lattice is in edit mode")
 
         dumper = Dumper()
@@ -62,9 +70,20 @@ class BlLattice(BlDatablock):
             'interpolation_type_w',
             'use_outside'
         ]
-        data = dumper.dump(instance)
-
-        data['points'] = np_dump_collection(instance.points, POINT)
+        data = dumper.dump(datablock)
 
+        data['points'] = np_dump_collection(datablock.points, POINT)
+        data['animation_data'] = dump_animation_data(datablock)
         return data
 
+    @staticmethod
+    def resolve(data: dict) -> object:
+        uuid = data.get('uuid')
+        return  resolve_datablock_from_uuid(uuid, bpy.data.lattices)
+
+    @staticmethod
+    def resolve_deps(datablock: object) -> [object]:
+        return resolve_animation_dependencies(datablock)
+
+_type = bpy.types.Lattice
+_class = BlLattice

multi_user/bl_types/bl_light.py

@@ -20,25 +20,34 @@ import bpy
 import mathutils
 
 from .dump_anything import Loader, Dumper
-from .bl_datablock import BlDatablock
+from replication.protocol import ReplicatedDatablock
+from .bl_datablock import resolve_datablock_from_uuid
+from .bl_action import dump_animation_data, load_animation_data, resolve_animation_dependencies
 
 
-class BlLight(BlDatablock):
+class BlLight(ReplicatedDatablock):
+    use_delta = True
+
     bl_id = "lights"
     bl_class = bpy.types.Light
     bl_check_common = False
     bl_icon = 'LIGHT_DATA'
     bl_reload_parent = False
 
+    @staticmethod
     def construct(data: dict) -> object:
-        return bpy.data.lights.new(data["name"], data["type"])
+        instance = bpy.data.lights.new(data["name"], data["type"])
+        instance.uuid = data.get("uuid")
+        return instance
 
+    @staticmethod
     def load(data: dict, datablock: object):
         loader = Loader()
-        loader.load(target, data)
+        loader.load(datablock, data)
+        load_animation_data(data.get('animation_data'), datablock)
 
+    @staticmethod
     def dump(datablock: object) -> dict:
-        assert(instance)
         dumper = Dumper()
         dumper.depth = 3
         dumper.include_filter = [
@@ -67,9 +76,23 @@ class BlLight(BlDatablock):
             'spot_size',
             'spot_blend'
         ]
-        data = dumper.dump(instance)
+        data = dumper.dump(datablock)
+        data['animation_data'] = dump_animation_data(datablock)
         return data
 
+    @staticmethod
+    def resolve(data: dict) -> object:
+        uuid = data.get('uuid')
+        return  resolve_datablock_from_uuid(uuid, bpy.data.lights)
+
+    @staticmethod
+    def resolve_deps(datablock: object) -> [object]:
+        deps = []
+
+        deps.extend(resolve_animation_dependencies(datablock))
+
+        return deps
 
 
-
+_type = [bpy.types.SpotLight, bpy.types.PointLight, bpy.types.AreaLight, bpy.types.SunLight]
+_class = BlLight

multi_user/bl_types/bl_lightprobe.py

@@ -21,31 +21,35 @@ import mathutils
 import logging
 
 from .dump_anything import Loader, Dumper
-from .bl_datablock import BlDatablock
+from replication.protocol import ReplicatedDatablock
+from .bl_datablock import resolve_datablock_from_uuid
 
+class BlLightprobe(ReplicatedDatablock):
+    use_delta = True
 
-class BlLightprobe(BlDatablock):
     bl_id = "lightprobes"
     bl_class = bpy.types.LightProbe
     bl_check_common = False
     bl_icon = 'LIGHTPROBE_GRID'
     bl_reload_parent = False
 
+    @staticmethod
     def construct(data: dict) -> object:
         type = 'CUBE' if data['type'] == 'CUBEMAP' else data['type']
         # See https://developer.blender.org/D6396
-        if bpy.app.version[1] >= 83:
+        if bpy.app.version >= (2,83,0):
             return bpy.data.lightprobes.new(data["name"], type)
         else:
             logging.warning("Lightprobe replication only supported since 2.83. See https://developer.blender.org/D6396")
 
+    @staticmethod
     def load(data: dict, datablock: object):
         loader = Loader()
-        loader.load(target, data)
+        loader.load(datablock, data)
 
+    @staticmethod
     def dump(datablock: object) -> dict:
-        assert(instance)
-        if bpy.app.version[1] < 83:
+        if bpy.app.version < (2,83,0):
             logging.warning("Lightprobe replication only supported since 2.83. See https://developer.blender.org/D6396")
 
         dumper = Dumper()
@@ -71,7 +75,16 @@ class BlLightprobe(BlDatablock):
             'visibility_blur'
         ]
 
-        return dumper.dump(instance)
+        return dumper.dump(datablock)
 
+    @staticmethod
+    def resolve(data: dict) -> object:
+        uuid = data.get('uuid') 
+        return resolve_datablock_from_uuid(uuid, bpy.data.lightprobes)
 
+    @staticmethod
+    def resolve_deps(datablock: object) -> [object]:
+        return []
 
+_type = bpy.types.LightProbe
+_class = BlLightprobe

multi_user/bl_types/bl_material.py

@@ -24,9 +24,10 @@ import re
 from uuid import uuid4
 
 from .dump_anything import Loader, Dumper
-from .bl_datablock import get_datablock_from_uuid, stamp_uuid
 from replication.protocol import ReplicatedDatablock
-from replication.objects import Node
+
+from .bl_datablock import get_datablock_from_uuid, resolve_datablock_from_uuid
+from .bl_action import dump_animation_data, load_animation_data, resolve_animation_dependencies
 
 NODE_SOCKET_INDEX = re.compile('\[(\d*)\]')
 IGNORED_SOCKETS = ['GEOMETRY', 'SHADER', 'CUSTOM']
@@ -36,7 +37,7 @@ def load_node(node_data: dict, node_tree: bpy.types.ShaderNodeTree):
 
         :arg node_data: dumped node data
         :type node_data: dict
-        :arg node_tree: datablock node_tree
+        :arg node_tree: target node_tree
         :type node_tree: bpy.types.NodeTree
     """
     loader = Loader()
@@ -47,7 +48,11 @@ def load_node(node_data: dict, node_tree: bpy.types.ShaderNodeTree):
     node_tree_uuid = node_data.get('node_tree_uuid', None)
 
     if image_uuid and not target_node.image:
-        target_node.image = get_datablock_from_uuid(image_uuid, None)
+        image = resolve_datablock_from_uuid(image_uuid, bpy.data.images)
+        if image is None:
+            logging.error(f"Fail to find material image from uuid {image_uuid}")
+        else:
+            target_node.image = image
 
     if node_tree_uuid:
         target_node.node_tree = get_datablock_from_uuid(node_tree_uuid, None)
@@ -90,7 +95,7 @@ def load_node(node_data: dict, node_tree: bpy.types.ShaderNodeTree):
 def dump_node(node: bpy.types.ShaderNode) -> dict:
     """ Dump a single node to a dict
 
-        :arg node: datablock node
+        :arg node: target node
         :type node: bpy.types.Node
         :retrun: dict
     """
@@ -119,8 +124,7 @@ def dump_node(node: bpy.types.ShaderNode) -> dict:
         "show_preview",
         "show_texture",
         "outputs",
-        "width_hidden",
-        "image"
+        "width_hidden"
     ]
 
     dumped_node = node_dumper.dump(node)
@@ -251,7 +255,7 @@ def dump_node_tree(node_tree: bpy.types.ShaderNodeTree) -> dict:
 def dump_node_tree_sockets(sockets: bpy.types.Collection) -> dict:
     """ dump sockets of a shader_node_tree
 
-        :arg target_node_tree: datablock node_tree
+        :arg target_node_tree: target node_tree
         :type target_node_tree: bpy.types.NodeTree
         :arg socket_id: socket identifer 
         :type socket_id: str
@@ -274,7 +278,7 @@ def load_node_tree_sockets(sockets: bpy.types.Collection,
                            sockets_data: dict):
     """ load sockets of a shader_node_tree
 
-        :arg target_node_tree: datablock node_tree
+        :arg target_node_tree: target node_tree
         :type target_node_tree: bpy.types.NodeTree
         :arg socket_id: socket identifer 
         :type socket_id: str
@@ -302,7 +306,7 @@ def load_node_tree(node_tree_data: dict, target_node_tree: bpy.types.ShaderNodeT
 
         :arg node_tree_data: dumped node data
         :type node_tree_data: dict
-        :arg target_node_tree: datablock node_tree
+        :arg target_node_tree: target node_tree
         :type target_node_tree: bpy.types.NodeTree
     """
     # TODO: load only required nodes
@@ -375,7 +379,7 @@ def load_materials_slots(src_materials: list, dst_materials: bpy.types.bpy_prop_
 
         :arg src_materials: dumped material collection (ex: object.materials)
         :type src_materials: list of tuples (uuid, name) 
-        :arg dst_materials: datablock material collection pointer
+        :arg dst_materials: target material collection pointer
         :type dst_materials: bpy.types.bpy_prop_collection
     """
     # MATERIAL SLOTS
@@ -383,20 +387,22 @@ def load_materials_slots(src_materials: list, dst_materials: bpy.types.bpy_prop_
 
     for mat_uuid, mat_name in src_materials:
         mat_ref = None
-        if mat_uuid is not None:
+        if mat_uuid:
             mat_ref = get_datablock_from_uuid(mat_uuid, None)
         else:
             mat_ref = bpy.data.materials[mat_name]
-
         dst_materials.append(mat_ref)
 
 
 class BlMaterial(ReplicatedDatablock):
+    use_delta = True
+
     bl_id = "materials"
     bl_class = bpy.types.Material
     bl_check_common = False
     bl_icon = 'MATERIAL_DATA'
     bl_reload_parent = False
+    bl_reload_child = True
 
     @staticmethod
     def construct(data: dict) -> object:
@@ -404,7 +410,6 @@ class BlMaterial(ReplicatedDatablock):
 
     @staticmethod
     def load(data: dict, datablock: object):
-        data = data
         loader = Loader()
 
         is_grease_pencil = data.get('is_grease_pencil')
@@ -421,11 +426,11 @@ class BlMaterial(ReplicatedDatablock):
                 datablock.use_nodes = True
 
             load_node_tree(data['node_tree'], datablock.node_tree)
+            load_animation_data(data.get('nodes_animation_data'), datablock.node_tree)
+        load_animation_data(data.get('animation_data'), datablock)
 
     @staticmethod
     def dump(datablock: object) -> dict:
-        stamp_uuid(datablock)
-
         mat_dumper = Dumper()
         mat_dumper.depth = 2
         mat_dumper.include_filter = [
@@ -490,16 +495,25 @@ class BlMaterial(ReplicatedDatablock):
             data['grease_pencil'] = gp_mat_dumper.dump(datablock.grease_pencil)
         elif datablock.use_nodes:
             data['node_tree'] = dump_node_tree(datablock.node_tree)
+            data['nodes_animation_data'] = dump_animation_data(datablock.node_tree)
+
+        data['animation_data'] = dump_animation_data(datablock)
 
         return data
 
+    @staticmethod
+    def resolve(data: dict) -> object:
+        uuid = data.get('uuid')
+        return resolve_datablock_from_uuid(uuid, bpy.data.materials)
+
     @staticmethod
     def resolve_deps(datablock: object) -> [object]:
-        # TODO: resolve node group deps
         deps = []
 
         if datablock.use_nodes:
             deps.extend(get_node_tree_dependencies(datablock.node_tree))
+            deps.extend(resolve_animation_dependencies(datablock.node_tree))
+        deps.extend(resolve_animation_dependencies(datablock))
 
         return deps
 

multi_user/bl_types/bl_mesh.py

@@ -22,20 +22,16 @@ import mathutils
 import logging
 import numpy as np
 
-from .dump_anything import (Dumper,
-                            Loader,
-                            np_load_collection_primitives,
-                            np_dump_collection_primitive,
-                            np_load_collection, np_dump_collection)
+from .dump_anything import Dumper, Loader, np_load_collection_primitives, np_dump_collection_primitive, np_load_collection, np_dump_collection
 from replication.constants import DIFF_BINARY
 from replication.exception import ContextError
 from replication.protocol import ReplicatedDatablock
-from replication.objects import Node
 
-from .bl_datablock import get_datablock_from_uuid, stamp_uuid
+from .bl_datablock import get_datablock_from_uuid
 from .bl_material import dump_materials_slots, load_materials_slots
-
-from ..preferences import get_preferences
+from ..utils import get_preferences
+from .bl_datablock import resolve_datablock_from_uuid
+from .bl_action import dump_animation_data, load_animation_data, resolve_animation_dependencies
 
 VERTICE = ['co']
 
@@ -58,8 +54,9 @@ POLYGON = [
     'material_index',
 ]
 
-
 class BlMesh(ReplicatedDatablock):
+    use_delta = True
+
     bl_id = "meshes"
     bl_class = bpy.types.Mesh
     bl_check_common = False
@@ -68,17 +65,15 @@ class BlMesh(ReplicatedDatablock):
 
     @staticmethod
     def construct(data: dict) -> object:
-        datablock = bpy.data.meshes.new(data["name"])
-        datablock.uuid = data['uuid']
-        return datablock
+        return bpy.data.meshes.new(data.get("name"))
 
     @staticmethod
     def load(data: dict, datablock: object):
-        data = data
-
         if not datablock or datablock.is_editmode:
             raise ContextError
         else:
+            load_animation_data(data.get('animation_data'), datablock)
+
             loader = Loader()
             loader.load(datablock, data)
 
@@ -100,7 +95,7 @@ class BlMesh(ReplicatedDatablock):
             np_load_collection(data['vertices'], datablock.vertices, VERTICE)
             np_load_collection(data['edges'], datablock.edges, EDGE)
             np_load_collection(data['loops'], datablock.loops, LOOP)
-            np_load_collection(data["polygons"], datablock.polygons, POLYGON)
+            np_load_collection(data["polygons"],datablock.polygons, POLYGON)
 
             # UV Layers
             if 'uv_layers' in data.keys():
@@ -129,8 +124,6 @@ class BlMesh(ReplicatedDatablock):
 
     @staticmethod
     def dump(datablock: object) -> dict:
-        stamp_uuid(datablock)
-
         if (datablock.is_editmode or bpy.context.mode == "SCULPT") and not get_preferences().sync_flags.sync_during_editmode:
             raise ContextError("Mesh is in edit mode")
         mesh = datablock
@@ -138,7 +131,6 @@ class BlMesh(ReplicatedDatablock):
         dumper = Dumper()
         dumper.depth = 1
         dumper.include_filter = [
-            'uuid'
             'name',
             'use_auto_smooth',
             'auto_smooth_angle',
@@ -148,6 +140,8 @@ class BlMesh(ReplicatedDatablock):
 
         data = dumper.dump(mesh)
 
+        data['animation_data'] = dump_animation_data(datablock)
+
         # VERTICES
         data["vertex_count"] = len(mesh.vertices)
         data["vertices"] = np_dump_collection(mesh.vertices, VERTICE)
@@ -169,16 +163,14 @@ class BlMesh(ReplicatedDatablock):
             data['uv_layers'] = {}
             for layer in mesh.uv_layers:
                 data['uv_layers'][layer.name] = {}
-                data['uv_layers'][layer.name]['data'] = np_dump_collection_primitive(
-                    layer.data, 'uv')
+                data['uv_layers'][layer.name]['data'] = np_dump_collection_primitive(layer.data, 'uv')
 
         # Vertex color
         if mesh.vertex_colors:
             data['vertex_colors'] = {}
             for color_map in mesh.vertex_colors:
                 data['vertex_colors'][color_map.name] = {}
-                data['vertex_colors'][color_map.name]['data'] = np_dump_collection_primitive(
-                    color_map.data, 'color')
+                data['vertex_colors'][color_map.name]['data'] = np_dump_collection_primitive(color_map.data, 'color')
 
         # Materials
         data['materials'] = dump_materials_slots(datablock.materials)
@@ -192,14 +184,19 @@ class BlMesh(ReplicatedDatablock):
             if material:
                 deps.append(material)
 
+        deps.extend(resolve_animation_dependencies(datablock))
+
         return deps
 
-    def diff(self):
-        if 'EDIT' in bpy.context.mode \
-                and not get_preferences().sync_flags.sync_during_editmode:
-            return False
-        else:
-            return super().diff()
+    @staticmethod
+    def resolve(data: dict) -> object:
+        uuid = data.get('uuid')
+        return resolve_datablock_from_uuid(uuid, bpy.data.meshes)
+
+    @staticmethod
+    def needs_update(datablock: object, data: dict) -> bool:
+        return ('EDIT' not in bpy.context.mode and bpy.context.mode != 'SCULPT') \
+            or get_preferences().sync_flags.sync_during_editmode
 
 _type = bpy.types.Mesh
 _class = BlMesh

multi_user/bl_types/bl_metaball.py

@@ -23,7 +23,9 @@ from .dump_anything import (
     Dumper, Loader, np_dump_collection_primitive, np_load_collection_primitives,
     np_dump_collection, np_load_collection)
 
-from .bl_datablock import BlDatablock
+from replication.protocol import ReplicatedDatablock
+from .bl_datablock import resolve_datablock_from_uuid
+from .bl_action import dump_animation_data, load_animation_data, resolve_animation_dependencies
 
 
 ELEMENT = [
@@ -62,29 +64,35 @@ def load_metaball_elements(elements_data, elements):
     np_load_collection(elements_data, elements, ELEMENT)
 
 
-class BlMetaball(BlDatablock):
+class BlMetaball(ReplicatedDatablock):
+    use_delta = True
+
     bl_id = "metaballs"
     bl_class = bpy.types.MetaBall
     bl_check_common = False
     bl_icon = 'META_BALL'
     bl_reload_parent = False
 
+    @staticmethod
     def construct(data: dict) -> object:
         return bpy.data.metaballs.new(data["name"])
 
+    @staticmethod
     def load(data: dict, datablock: object):
-        loader = Loader()
-        loader.load(target, data)
+        load_animation_data(data.get('animation_data'), datablock)
 
-        target.elements.clear()
+        loader = Loader()
+        loader.load(datablock, data)
+
+        datablock.elements.clear()
 
         for mtype in data["elements"]['type']:
-            new_element = target.elements.new()
+            new_element = datablock.elements.new()
 
-        load_metaball_elements(data['elements'], target.elements)
+        load_metaball_elements(data['elements'], datablock.elements)
 
+    @staticmethod
     def dump(datablock: object) -> dict:
-        assert(instance)
         dumper = Dumper()
         dumper.depth = 1
         dumper.include_filter = [
@@ -98,7 +106,24 @@ class BlMetaball(BlDatablock):
             'texspace_size'
         ]
 
-        data = dumper.dump(instance)
-        data['elements'] = dump_metaball_elements(instance.elements)
+        data = dumper.dump(datablock)
+        data['animation_data'] = dump_animation_data(datablock)
+        data['elements'] = dump_metaball_elements(datablock.elements)
 
         return data
+
+    @staticmethod
+    def resolve(data: dict) -> object:
+        uuid = data.get('uuid')
+        return resolve_datablock_from_uuid(uuid, bpy.data.metaballs)
+
+    @staticmethod
+    def resolve_deps(datablock: object) -> [object]:
+        deps = []
+
+        deps.extend(resolve_animation_dependencies(datablock))
+
+        return deps
+
+_type = bpy.types.MetaBall
+_class = BlMetaball

multi_user/bl_types/bl_node_group.py

@@ -20,27 +20,45 @@ import bpy
 import mathutils
 
 from .dump_anything import Dumper, Loader, np_dump_collection, np_load_collection
-from .bl_datablock import BlDatablock
+from replication.protocol import ReplicatedDatablock
 from .bl_material import (dump_node_tree,
                           load_node_tree,
                           get_node_tree_dependencies)
+from .bl_datablock import resolve_datablock_from_uuid
+from .bl_action import dump_animation_data, load_animation_data, resolve_animation_dependencies
+
+class BlNodeGroup(ReplicatedDatablock):
+    use_delta = True
 
-class BlNodeGroup(BlDatablock):
     bl_id = "node_groups"
     bl_class = bpy.types.NodeTree
     bl_check_common = False
     bl_icon = 'NODETREE'
     bl_reload_parent = False
 
+    @staticmethod
     def construct(data: dict) -> object:
         return bpy.data.node_groups.new(data["name"], data["type"])
 
+    @staticmethod
     def load(data: dict, datablock: object):
-        load_node_tree(data, target)
+        load_node_tree(data, datablock)
 
+    @staticmethod
     def dump(datablock: object) -> dict:
-        return dump_node_tree(instance)
+        return dump_node_tree(datablock)
+
+    @staticmethod
+    def resolve(data: dict) -> object:
+        uuid = data.get('uuid')
+        return resolve_datablock_from_uuid(uuid, bpy.data.node_groups)
 
     @staticmethod
     def resolve_deps(datablock: object) -> [object]:
-        return get_node_tree_dependencies(datablock)
+        deps = []
+        deps.extend(get_node_tree_dependencies(datablock))
+        deps.extend(resolve_animation_dependencies(datablock))
+        return deps
+
+_type = [bpy.types.ShaderNodeTree, bpy.types.GeometryNodeTree]
+_class = BlNodeGroup

multi_user/bl_types/bl_object.py

@@ -21,17 +21,12 @@ import re
 import bpy
 import mathutils
 from replication.exception import ContextError
-from replication.objects import Node
+
 from replication.protocol import ReplicatedDatablock
-
-from .bl_datablock import get_datablock_from_uuid, stamp_uuid
-from .bl_action import (load_animation_data,
-                        dump_animation_data,
-                        resolve_animation_dependencies)
-
-from ..preferences import get_preferences
-from .bl_datablock import get_datablock_from_uuid
+from .bl_datablock import get_datablock_from_uuid, resolve_datablock_from_uuid
 from .bl_material import IGNORED_SOCKETS
+from ..utils import get_preferences
+from .bl_action import dump_animation_data, load_animation_data, resolve_animation_dependencies
 from .dump_anything import (
     Dumper,
     Loader,
@@ -45,21 +40,40 @@ SKIN_DATA = [
     'use_root'
 ]
 
-if bpy.app.version[1] >= 93:
+SHAPEKEY_BLOCK_ATTR = [
+    'mute',
+    'value',
+    'slider_min',
+    'slider_max',
+]
+
+
+if bpy.app.version >= (2,93,0):
     SUPPORTED_GEOMETRY_NODE_PARAMETERS = (int, str, float)
 else:
     SUPPORTED_GEOMETRY_NODE_PARAMETERS = (int, str)
     logging.warning("Geometry node Float parameter not supported in \
                     blender 2.92.")
 
-def get_node_group_inputs(node_group):
-    inputs = []
+
+def get_node_group_properties_identifiers(node_group):
+    props_ids = []
+    # Inputs
     for inpt in node_group.inputs:
         if inpt.type in IGNORED_SOCKETS:
             continue
         else:
-            inputs.append(inpt)
-    return inputs
+            props_ids.append((inpt.identifier, inpt.type))
+
+        if inpt.type in ['INT', 'VALUE', 'BOOLEAN', 'RGBA', 'VECTOR']:
+            props_ids.append((f"{inpt.identifier}_attribute_name",'STR'))
+            props_ids.append((f"{inpt.identifier}_use_attribute", 'BOOL'))
+
+    for outpt in node_group.outputs:
+        if outpt.type not in IGNORED_SOCKETS and  outpt.type in ['INT', 'VALUE', 'BOOLEAN', 'RGBA', 'VECTOR']:
+            props_ids.append((f"{outpt.identifier}_attribute_name", 'STR'))
+
+    return props_ids
     # return [inpt.identifer for inpt in node_group.inputs if  inpt.type not in IGNORED_SOCKETS]
 
 
@@ -90,6 +104,7 @@ def dump_physics(target: bpy.types.Object)->dict:
 
     return physics_data
 
+
 def load_physics(dumped_settings: dict, target: bpy.types.Object):
     """  Load all physics settings from a given object excluding modifier 
         related physics settings (such as softbody, cloth, dynapaint and fluid) 
@@ -116,29 +131,36 @@ def load_physics(dumped_settings: dict, target: bpy.types.Object):
     elif target.rigid_body_constraint:
         bpy.ops.rigidbody.constraint_remove({"object": target})
 
-def dump_modifier_geometry_node_inputs(modifier: bpy.types.Modifier) -> list:
+
+def dump_modifier_geometry_node_props(modifier: bpy.types.Modifier) -> list:
     """ Dump geometry node modifier input properties
 
         :arg modifier: geometry node modifier to dump
         :type modifier: bpy.type.Modifier
     """
-    dumped_inputs = []
-    for inpt in get_node_group_inputs(modifier.node_group):
-        input_value = modifier[inpt.identifier]
+    dumped_props = []
     
-        dumped_input = None
-        if isinstance(input_value, bpy.types.ID):
-            dumped_input = input_value.uuid
-        elif isinstance(input_value, SUPPORTED_GEOMETRY_NODE_PARAMETERS):
-            dumped_input = input_value
-        elif hasattr(input_value, 'to_list'):
-            dumped_input = input_value.to_list()
-        dumped_inputs.append(dumped_input)
+    for prop_value, prop_type in get_node_group_properties_identifiers(modifier.node_group):
+        try:
+            prop_value = modifier[prop_value]
+        except KeyError as e:
+            logging.error(f"fail to dump geomety node modifier property : {prop_value} ({e})")
+        else:
+            dump = None
+            if isinstance(prop_value, bpy.types.ID):
+                dump = prop_value.uuid
+            elif isinstance(prop_value, SUPPORTED_GEOMETRY_NODE_PARAMETERS):
+                dump = prop_value
+            elif hasattr(prop_value, 'to_list'):
+                dump = prop_value.to_list()
 
-    return dumped_inputs
+            dumped_props.append((dump, prop_type))
+            # logging.info(prop_value)
+
+    return dumped_props
 
 
-def load_modifier_geometry_node_inputs(dumped_modifier: dict, target_modifier: bpy.types.Modifier):
+def load_modifier_geometry_node_props(dumped_modifier: dict, target_modifier: bpy.types.Modifier):
     """ Load geometry node modifier inputs
 
         :arg dumped_modifier: source dumped modifier to load
@@ -147,17 +169,17 @@ def load_modifier_geometry_node_inputs(dumped_modifier: dict, target_modifier: b
         :type target_modifier: bpy.type.Modifier
     """
 
-    for input_index, inpt in enumerate(get_node_group_inputs(target_modifier.node_group)):
-        dumped_value = dumped_modifier['inputs'][input_index]
-        input_value = target_modifier[inpt.identifier]
-        if isinstance(input_value, SUPPORTED_GEOMETRY_NODE_PARAMETERS):
-            target_modifier[inpt.identifier] = dumped_value
-        elif hasattr(input_value, 'to_list'):
+    for input_index, inpt in enumerate(get_node_group_properties_identifiers(target_modifier.node_group)):
+        dumped_value, dumped_type = dumped_modifier['props'][input_index]
+        input_value = target_modifier[inpt[0]]
+        if dumped_type in ['INT', 'VALUE', 'STR']:
+            logging.info(f"{inpt[0]}/{dumped_value}")
+            target_modifier[inpt[0]] = dumped_value
+        elif dumped_type in ['RGBA', 'VECTOR']:
             for index in range(len(input_value)):
                 input_value[index] = dumped_value[index]
-        elif inpt.type in ['COLLECTION', 'OBJECT']:
-            target_modifier[inpt.identifier] = get_datablock_from_uuid(
-                dumped_value, None)
+        elif dumped_type in ['COLLECTION', 'OBJECT', 'IMAGE', 'TEXTURE', 'MATERIAL']:
+            target_modifier[inpt[0]] = get_datablock_from_uuid(dumped_value, None)
 
 
 def load_pose(target_bone, data):
@@ -167,40 +189,45 @@ def load_pose(target_bone, data):
 
 
 def find_data_from_name(name=None):
-    datablock = None
+    instance = None
     if not name:
         pass
     elif name in bpy.data.meshes.keys():
-        datablock = bpy.data.meshes[name]
+        instance = bpy.data.meshes[name]
     elif name in bpy.data.lights.keys():
-        datablock = bpy.data.lights[name]
+        instance = bpy.data.lights[name]
     elif name in bpy.data.cameras.keys():
-        datablock = bpy.data.cameras[name]
+        instance = bpy.data.cameras[name]
     elif name in bpy.data.curves.keys():
-        datablock = bpy.data.curves[name]
+        instance = bpy.data.curves[name]
     elif name in bpy.data.metaballs.keys():
-        datablock = bpy.data.metaballs[name]
+        instance = bpy.data.metaballs[name]
     elif name in bpy.data.armatures.keys():
-        datablock = bpy.data.armatures[name]
+        instance = bpy.data.armatures[name]
     elif name in bpy.data.grease_pencils.keys():
-        datablock = bpy.data.grease_pencils[name]
+        instance = bpy.data.grease_pencils[name]
     elif name in bpy.data.curves.keys():
-        datablock = bpy.data.curves[name]
+        instance = bpy.data.curves[name]
     elif name in bpy.data.lattices.keys():
-        datablock = bpy.data.lattices[name]
+        instance = bpy.data.lattices[name]
     elif name in bpy.data.speakers.keys():
-        datablock = bpy.data.speakers[name]
+        instance = bpy.data.speakers[name]
     elif name in bpy.data.lightprobes.keys():
         # Only supported since 2.83
-        if bpy.app.version[1] >= 83:
-            datablock = bpy.data.lightprobes[name]
+        if bpy.app.version >= (2,83,0):
+            instance = bpy.data.lightprobes[name]
         else:
             logging.warning(
                 "Lightprobe replication only supported since 2.83. See https://developer.blender.org/D6396")
-    elif bpy.app.version[1] >= 91 and name in bpy.data.volumes.keys():
+    elif bpy.app.version >= (2,91,0) and name in bpy.data.volumes.keys():
         # Only supported since 2.91
-        datablock = bpy.data.volumes[name]
-    return datablock
+        instance = bpy.data.volumes[name]
+    return instance
+
+
+def load_data(object, name):
+    logging.info("loading data")
+    pass
 
 
 def _is_editmode(object: bpy.types.Object) -> bool:
@@ -239,15 +266,15 @@ def find_geometry_nodes_dependencies(modifiers: bpy.types.bpy_prop_collection) -
     for mod in modifiers:
         if mod.type == 'NODES' and mod.node_group:
             dependencies.append(mod.node_group)
-            # for inpt in get_node_group_inputs(mod.node_group):
-            #     parameter = mod.get(inpt.identifier)
-            #     if parameter and isinstance(parameter, bpy.types.ID):
-            #         dependencies.append(parameter)
+            for inpt, inpt_type in get_node_group_properties_identifiers(mod.node_group):
+                inpt_value = mod.get(inpt)
+                # Avoid to handle 'COLLECTION', 'OBJECT' to avoid circular dependencies
+                if inpt_type in ['IMAGE', 'TEXTURE', 'MATERIAL'] and inpt_value:  
+                    dependencies.append(inpt_value)
 
     return dependencies
 
 
-
 def dump_vertex_groups(src_object: bpy.types.Object) -> dict:
     """ Dump object's vertex groups
 
@@ -293,43 +320,225 @@ def load_vertex_groups(dumped_vertex_groups: dict, target_object: bpy.types.Obje
             vertex_group.add([index], weight, 'REPLACE')
 
 
+def dump_shape_keys(target_key: bpy.types.Key)->dict:
+    """ Dump the target shape_keys datablock to a dict using numpy
+
+        :param dumped_key: target key datablock
+        :type dumped_key: bpy.types.Key
+        :return: dict
+    """
+
+    dumped_key_blocks = []
+    dumper = Dumper()
+    dumper.include_filter = [
+        'name',
+        'mute',
+        'value',
+        'slider_min',
+        'slider_max',
+    ]
+    for key in target_key.key_blocks:
+        dumped_key_block = dumper.dump(key)
+        dumped_key_block['data'] = np_dump_collection(key.data, ['co'])
+        dumped_key_block['relative_key'] = key.relative_key.name
+        dumped_key_blocks.append(dumped_key_block)
+
+    return {
+        'reference_key': target_key.reference_key.name,
+        'use_relative': target_key.use_relative,
+        'key_blocks': dumped_key_blocks,
+        'animation_data': dump_animation_data(target_key)
+    }
+
+
+def load_shape_keys(dumped_shape_keys: dict, target_object: bpy.types.Object):
+    """ Load the target shape_keys datablock to a dict using numpy
+
+        :param dumped_key: src key data
+        :type dumped_key: bpy.types.Key
+        :param target_object: object used to load the shapekeys data onto
+        :type target_object: bpy.types.Object
+    """
+    loader = Loader()
+    # Remove existing ones
+    target_object.shape_key_clear()
+
+    # Create keys and load vertices coords
+    dumped_key_blocks = dumped_shape_keys.get('key_blocks')
+    for dumped_key_block in dumped_key_blocks:
+        key_block = target_object.shape_key_add(name=dumped_key_block['name'])
+
+        loader.load(key_block, dumped_key_block)
+        np_load_collection(dumped_key_block['data'], key_block.data, ['co'])
+
+    # Load relative key after all
+    for dumped_key_block in dumped_key_blocks:
+        relative_key_name = dumped_key_block.get('relative_key')
+        key_name = dumped_key_block.get('name')
+
+        target_keyblock = target_object.data.shape_keys.key_blocks[key_name]
+        relative_key = target_object.data.shape_keys.key_blocks[relative_key_name]
+
+        target_keyblock.relative_key = relative_key
+
+    # Shape keys animation data
+    anim_data = dumped_shape_keys.get('animation_data')
+
+    if anim_data:
+        load_animation_data(anim_data, target_object.data.shape_keys)
+
+
+def dump_modifiers(modifiers: bpy.types.bpy_prop_collection)->dict:
+    """ Dump all modifiers of a modifier collection into a dict
+
+        :param modifiers: modifiers
+        :type modifiers: bpy.types.bpy_prop_collection
+        :return: dict
+    """
+    dumped_modifiers = []
+    dumper = Dumper()
+    dumper.depth = 1
+    dumper.exclude_filter = ['is_active']
+
+    for modifier in modifiers:
+        dumped_modifier = dumper.dump(modifier)
+        # hack to dump geometry nodes inputs
+        if modifier.type == 'NODES':
+            dumped_modifier['props'] = dump_modifier_geometry_node_props(modifier)
+        elif modifier.type == 'PARTICLE_SYSTEM':
+            dumper.exclude_filter = [
+                "is_edited",
+                "is_editable",
+                "is_global_hair"
+            ]
+            dumped_modifier['particle_system'] = dumper.dump(modifier.particle_system)
+            dumped_modifier['particle_system']['settings_uuid'] = modifier.particle_system.settings.uuid
+
+        elif modifier.type in ['SOFT_BODY', 'CLOTH']:
+            dumped_modifier['settings'] = dumper.dump(modifier.settings)
+        elif modifier.type == 'UV_PROJECT':
+            dumped_modifier['projectors'] =[p.object.name for p in modifier.projectors if p and p.object]
+
+        dumped_modifiers.append(dumped_modifier)
+    return dumped_modifiers
+
+def dump_constraints(constraints: bpy.types.bpy_prop_collection)->list:
+    """Dump all constraints to a list
+
+        :param constraints: constraints
+        :type constraints: bpy.types.bpy_prop_collection
+        :return: dict
+    """
+    dumper = Dumper()
+    dumper.depth = 2
+    dumper.include_filter = None
+    dumped_constraints = []
+    for constraint in constraints:
+        dumped_constraints.append(dumper.dump(constraint))
+    return dumped_constraints
+
+def load_constraints(dumped_constraints: list, constraints: bpy.types.bpy_prop_collection):
+    """ Load dumped constraints
+
+        :param dumped_constraints: list of constraints to load
+        :type dumped_constraints: list
+        :param constraints: constraints
+        :type constraints: bpy.types.bpy_prop_collection
+    """
+    loader = Loader()
+    constraints.clear()
+    for dumped_constraint in dumped_constraints:
+        constraint_type = dumped_constraint.get('type')
+        new_constraint = constraints.new(constraint_type)
+        loader.load(new_constraint, dumped_constraint)
+
+def load_modifiers(dumped_modifiers: list, modifiers: bpy.types.bpy_prop_collection):
+    """ Dump all modifiers of a modifier collection into a dict
+
+        :param dumped_modifiers: list of modifiers to load
+        :type dumped_modifiers: list
+        :param modifiers: modifiers
+        :type modifiers: bpy.types.bpy_prop_collection
+    """
+    loader = Loader()
+    modifiers.clear()
+    for dumped_modifier in dumped_modifiers:
+        name = dumped_modifier.get('name')
+        mtype = dumped_modifier.get('type')
+        loaded_modifier = modifiers.new(name, mtype)
+        loader.load(loaded_modifier, dumped_modifier)
+
+        if loaded_modifier.type == 'NODES':
+            load_modifier_geometry_node_props(dumped_modifier, loaded_modifier)
+        elif loaded_modifier.type == 'PARTICLE_SYSTEM':
+            default =  loaded_modifier.particle_system.settings
+            dumped_particles = dumped_modifier['particle_system']
+            loader.load(loaded_modifier.particle_system, dumped_particles)
+
+            settings = get_datablock_from_uuid(dumped_particles['settings_uuid'], None)
+            if settings:
+                loaded_modifier.particle_system.settings = settings
+                # Hack to remove the default generated particle settings
+                if not default.uuid:
+                    bpy.data.particles.remove(default)
+        elif loaded_modifier.type in ['SOFT_BODY', 'CLOTH']:
+            loader.load(loaded_modifier.settings, dumped_modifier['settings'])
+        elif loaded_modifier.type == 'UV_PROJECT':
+            for projector_index, projector_object in enumerate(dumped_modifier['projectors']):
+                target_object = bpy.data.objects.get(projector_object)
+                if target_object:
+                    loaded_modifier.projectors[projector_index].object = target_object
+                else:
+                    logging.error("Could't load projector target object {projector_object}")
+
+
+def load_modifiers_custom_data(dumped_modifiers: dict, modifiers: bpy.types.bpy_prop_collection):
+    """ Load modifiers custom data not managed by the dump_anything loader
+
+        :param dumped_modifiers: modifiers to load
+        :type dumped_modifiers: dict
+        :param modifiers: target modifiers collection 
+        :type modifiers: bpy.types.bpy_prop_collection
+    """
+    loader = Loader()
+
+    for modifier in modifiers:
+        dumped_modifier = dumped_modifiers.get(modifier.name)
+        
+            
 class BlObject(ReplicatedDatablock):
+    use_delta = True
+
     bl_id = "objects"
+    bl_class = bpy.types.Object
     bl_check_common = False
     bl_icon = 'OBJECT_DATA'
     bl_reload_parent = False
 
-    is_root = False
-
     @staticmethod
-    def construct(data: dict) -> bpy.types.Object:
-        datablock = None
+    def construct(data: dict) -> object:
+        instance = None
 
         # TODO: refactoring
         object_name = data.get("name")
         data_uuid = data.get("data_uuid")
         data_id = data.get("data")
-        object_uuid = data.get('uuid')
+        data_type = data.get("type")
+
         object_data = get_datablock_from_uuid(
             data_uuid,
             find_data_from_name(data_id),
             ignore=['images'])  # TODO: use resolve_from_id
 
-        if object_data is None and data_uuid:
-            raise Exception(f"Fail to load object {data['name']}({object_uuid})")
+        if data_type != 'EMPTY' and object_data is None:
+            raise Exception(f"Fail to load object {data['name']})")
 
-        datablock = bpy.data.objects.new(object_name, object_data)
-        datablock.uuid = object_uuid
-
-        return datablock
+        return bpy.data.objects.new(object_name, object_data)
 
     @staticmethod
-    def load(data: dict, datablock: bpy.types.Object):
-        data = datablock.data
-        load_animation_data(data, datablock)
-
+    def load(data: dict, datablock: object):
         loader = Loader()
-
+        load_animation_data(data.get('animation_data'), datablock)
         data_uuid = data.get("data_uuid")
         data_id = data.get("data")
 
@@ -345,24 +554,9 @@ class BlObject(ReplicatedDatablock):
         object_data = datablock.data
 
         # SHAPE KEYS
-        if 'shape_keys' in data:
-            datablock.shape_key_clear()
-
-            # Create keys and load vertices coords
-            for key_block in data['shape_keys']['key_blocks']:
-                key_data = data['shape_keys']['key_blocks'][key_block]
-                datablock.shape_key_add(name=key_block)
-
-                loader.load(
-                    datablock.data.shape_keys.key_blocks[key_block], key_data)
-                for vert in key_data['data']:
-                    datablock.data.shape_keys.key_blocks[key_block].data[vert].co = key_data['data'][vert]['co']
-
-            # Load relative key after all
-            for key_block in data['shape_keys']['key_blocks']:
-                reference = data['shape_keys']['key_blocks'][key_block]['relative_key']
-
-                datablock.data.shape_keys.key_blocks[key_block].relative_key = datablock.data.shape_keys.key_blocks[reference]
+        shape_keys = data.get('shape_keys')
+        if shape_keys:
+            load_shape_keys(shape_keys, datablock)
 
         # Load transformation data
         loader.load(datablock, data)
@@ -388,26 +582,26 @@ class BlObject(ReplicatedDatablock):
             # Bone groups
             for bg_name in data['pose']['bone_groups']:
                 bg_data = data['pose']['bone_groups'].get(bg_name)
-                bg_datablock = datablock.pose.bone_groups.get(bg_name)
+                bg_target = datablock.pose.bone_groups.get(bg_name)
 
-                if not bg_datablock:
-                    bg_datablock = datablock.pose.bone_groups.new(name=bg_name)
+                if not bg_target:
+                    bg_target = datablock.pose.bone_groups.new(name=bg_name)
 
-                loader.load(bg_datablock, bg_data)
+                loader.load(bg_target, bg_data)
                 # datablock.pose.bone_groups.get
 
             # Bones
             for bone in data['pose']['bones']:
-                datablock_bone = datablock.pose.bones.get(bone)
+                target_bone = datablock.pose.bones.get(bone)
                 bone_data = data['pose']['bones'].get(bone)
 
                 if 'constraints' in bone_data.keys():
-                    loader.load(datablock_bone, bone_data['constraints'])
+                    loader.load(target_bone, bone_data['constraints'])
 
-                load_pose(datablock_bone, bone_data)
+                load_pose(target_bone, bone_data)
 
                 if 'bone_index' in bone_data.keys():
-                    datablock_bone.bone_group = datablock.pose.bone_group[bone_data['bone_group_index']]
+                    target_bone.bone_group = datablock.pose.bone_group[bone_data['bone_group_index']]
 
         # TODO: find another way...
         if datablock.empty_display_type == "IMAGE":
@@ -428,52 +622,26 @@ class BlObject(ReplicatedDatablock):
                 and 'cycles_visibility' in data:
             loader.load(datablock.cycles_visibility, data['cycles_visibility'])
 
-        # TODO: handle geometry nodes input from dump_anything
         if hasattr(datablock, 'modifiers'):
-            nodes_modifiers = [
-                mod for mod in datablock.modifiers if mod.type == 'NODES']
-            for modifier in nodes_modifiers:
-                load_modifier_geometry_node_inputs(
-                    data['modifiers'][modifier.name], modifier)
+            load_modifiers(data['modifiers'], datablock.modifiers)
 
-            particles_modifiers = [
-                mod for mod in datablock.modifiers if mod.type == 'PARTICLE_SYSTEM']
-
-            for mod in particles_modifiers:
-                default =  mod.particle_system.settings
-                dumped_particles = data['modifiers'][mod.name]['particle_system']
-                loader.load(mod.particle_system, dumped_particles)
-
-                settings = get_datablock_from_uuid(dumped_particles['settings_uuid'], None)
-                if settings:
-                    mod.particle_system.settings = settings
-                    # Hack to remove the default generated particle settings
-                    if not default.uuid:
-                        bpy.data.particles.remove(default)
-
-            phys_modifiers = [
-                mod for mod in datablock.modifiers if mod.type in ['SOFT_BODY', 'CLOTH']]
-            
-            for mod in phys_modifiers:
-                loader.load(mod.settings, data['modifiers'][mod.name]['settings'])
+        constraints = data.get('constraints')
+        if constraints:
+            load_constraints(constraints, datablock.constraints)
 
         # PHYSICS
         load_physics(data, datablock)
 
         transform = data.get('transforms', None)
         if transform:
-            datablock.matrix_parent_inverse = mathutils.Matrix(
-                transform['matrix_parent_inverse'])
+            datablock.matrix_parent_inverse = mathutils.Matrix(transform['matrix_parent_inverse'])
             datablock.matrix_basis = mathutils.Matrix(transform['matrix_basis'])
-            datablock.matrix_local = mathutils.Matrix(transform['matrix_local'])
 
 
     @staticmethod
     def dump(datablock: object) -> dict:
-        assert(datablock)
-
         if _is_editmode(datablock):
-            if self.preferences.sync_flags.sync_during_editmode:
+            if get_preferences().sync_flags.sync_during_editmode:
                 datablock.update_from_editmode()
             else:
                 raise ContextError("Object is in edit-mode.")
@@ -481,7 +649,6 @@ class BlObject(ReplicatedDatablock):
         dumper = Dumper()
         dumper.depth = 1
         dumper.include_filter = [
-            "uuid",
             "name",
             "rotation_mode",
             "data",
@@ -511,11 +678,15 @@ class BlObject(ReplicatedDatablock):
             'show_all_edges',
             'show_texture_space',
             'show_in_front',
-            'type'
+            'type',
+            'parent_type',
+            'parent_bone',
+            'track_axis',
+            'up_axis',
         ]
 
         data = dumper.dump(datablock)
-
+        data['animation_data'] = dump_animation_data(datablock)
         dumper.include_filter = [
             'matrix_parent_inverse',
             'matrix_local',
@@ -533,34 +704,9 @@ class BlObject(ReplicatedDatablock):
             data['parent_uid'] = (datablock.parent.uuid, datablock.parent.name)
 
         # MODIFIERS
+        modifiers = getattr(datablock, 'modifiers', None)
         if hasattr(datablock, 'modifiers'):
-            data["modifiers"] = {}
-            modifiers = getattr(datablock, 'modifiers', None)
-            if modifiers:
-                dumper.include_filter = None
-                dumper.depth = 1
-                dumper.exclude_filter = ['is_active']
-                for index, modifier in enumerate(modifiers):
-                    dumped_modifier = dumper.dump(modifier)
-                    # hack to dump geometry nodes inputs
-                    if modifier.type == 'NODES':
-                        dumped_inputs = dump_modifier_geometry_node_inputs(
-                            modifier)
-                        dumped_modifier['inputs'] = dumped_inputs
-
-                    elif modifier.type == 'PARTICLE_SYSTEM':
-                        dumper.exclude_filter = [
-                            "is_edited",
-                            "is_editable",
-                            "is_global_hair"
-                        ]
-                        dumped_modifier['particle_system'] = dumper.dump(modifier.particle_system)
-                        dumped_modifier['particle_system']['settings_uuid'] = modifier.particle_system.settings.uuid
-
-                    elif modifier.type in ['SOFT_BODY', 'CLOTH']:
-                        dumped_modifier['settings'] = dumper.dump(modifier.settings)
-
-                    data["modifiers"][modifier.name] = dumped_modifier
+            data['modifiers'] = dump_modifiers(modifiers)
 
         gp_modifiers = getattr(datablock, 'grease_pencil_modifiers', None)
 
@@ -586,9 +732,7 @@ class BlObject(ReplicatedDatablock):
 
         # CONSTRAINTS
         if hasattr(datablock, 'constraints'):
-            dumper.include_filter = None
-            dumper.depth = 3
-            data["constraints"] = dumper.dump(datablock.constraints)
+            data["constraints"] = dump_constraints(datablock.constraints)
 
         # POSE
         if hasattr(datablock, 'pose') and datablock.pose:
@@ -635,30 +779,7 @@ class BlObject(ReplicatedDatablock):
         #  SHAPE KEYS
         object_data = datablock.data
         if hasattr(object_data, 'shape_keys') and object_data.shape_keys:
-            dumper = Dumper()
-            dumper.depth = 2
-            dumper.include_filter = [
-                'reference_key',
-                'use_relative'
-            ]
-            data['shape_keys'] = dumper.dump(object_data.shape_keys)
-            data['shape_keys']['reference_key'] = object_data.shape_keys.reference_key.name
-            key_blocks = {}
-            for key in object_data.shape_keys.key_blocks:
-                dumper.depth = 3
-                dumper.include_filter = [
-                    'name',
-                    'data',
-                    'mute',
-                    'value',
-                    'slider_min',
-                    'slider_max',
-                    'data',
-                    'co'
-                ]
-                key_blocks[key.name] = dumper.dump(key)
-                key_blocks[key.name]['relative_key'] = key.relative_key.name
-            data['shape_keys']['key_blocks'] = key_blocks
+            data['shape_keys'] = dump_shape_keys(object_data.shape_keys)
 
         #  SKIN VERTICES
         if hasattr(object_data, 'skin_vertices') and object_data.skin_vertices:
@@ -678,16 +799,15 @@ class BlObject(ReplicatedDatablock):
                 'scatter',
                 'shadow',
             ]
-            data['cycles_visibility'] = dumper.dump(
-                datablock.cycles_visibility)
+            data['cycles_visibility'] = dumper.dump(datablock.cycles_visibility)
 
         # PHYSICS
-        data.update(dump_physics(instance))
+        data.update(dump_physics(datablock))
 
         return data
 
     @staticmethod
-    def resolve_deps(datablock: bpy.types.Object) -> list:
+    def resolve_deps(datablock: object) -> [object]:
         deps = []
 
         # Avoid Empty case
@@ -705,13 +825,22 @@ class BlObject(ReplicatedDatablock):
             # TODO: uuid based
             deps.append(datablock.instance_collection)
 
-        deps.extend(resolve_animation_dependencies(datablock))
-
         if datablock.modifiers:
             deps.extend(find_textures_dependencies(datablock.modifiers))
             deps.extend(find_geometry_nodes_dependencies(datablock.modifiers))
 
+        if hasattr(datablock.data, 'shape_keys') and datablock.data.shape_keys:
+            deps.extend(resolve_animation_dependencies(datablock.data.shape_keys))
+
+        deps.extend(resolve_animation_dependencies(datablock))
+
         return deps
 
+
+    @staticmethod
+    def resolve(data: dict) -> object:
+        uuid = data.get('uuid')
+        return  resolve_datablock_from_uuid(uuid, bpy.data.objects)
+
 _type = bpy.types.Object
 _class = BlObject

multi_user/bl_types/bl_particle.py

@@ -0,0 +1,106 @@
+import bpy
+import mathutils
+
+from . import dump_anything
+from replication.protocol import ReplicatedDatablock
+from .bl_datablock import get_datablock_from_uuid
+from .bl_datablock import resolve_datablock_from_uuid
+from .bl_action import dump_animation_data, load_animation_data, resolve_animation_dependencies
+
+
+def dump_textures_slots(texture_slots: bpy.types.bpy_prop_collection) -> list:
+    """ Dump every texture slot collection as the form:
+        [(index, slot_texture_uuid, slot_texture_name), (), ...]
+    """
+    dumped_slots = []
+    for index, slot in enumerate(texture_slots):
+        if slot and slot.texture:
+            dumped_slots.append((index, slot.texture.uuid, slot.texture.name))
+
+    return dumped_slots
+
+
+def load_texture_slots(dumped_slots: list, target_slots: bpy.types.bpy_prop_collection):
+    """
+    """
+    for index, slot in enumerate(target_slots):
+        if slot:
+            target_slots.clear(index)
+
+    for index, slot_uuid, slot_name in dumped_slots:
+        target_slots.create(index).texture = get_datablock_from_uuid(
+            slot_uuid, slot_name
+        )
+
+IGNORED_ATTR = [
+    "is_embedded_data",
+    "is_evaluated",
+    "is_fluid",
+    "is_library_indirect",
+    "users"
+]
+
+class BlParticle(ReplicatedDatablock):
+    use_delta = True
+
+    bl_id = "particles"
+    bl_class = bpy.types.ParticleSettings
+    bl_icon = "PARTICLES"
+    bl_check_common = False
+    bl_reload_parent = False
+
+    @staticmethod
+    def construct(data: dict) -> object:
+        return bpy.data.particles.new(data["name"])
+
+    @staticmethod
+    def load(data: dict, datablock: object):
+        load_animation_data(data.get('animation_data'), datablock)
+        dump_anything.load(datablock, data)
+
+        dump_anything.load(datablock.effector_weights, data["effector_weights"])
+
+        # Force field
+        force_field_1 = data.get("force_field_1", None)
+        if force_field_1:
+            dump_anything.load(datablock.force_field_1, force_field_1)
+
+        force_field_2 = data.get("force_field_2", None)
+        if force_field_2:
+            dump_anything.load(datablock.force_field_2, force_field_2)
+
+        # Texture slots
+        load_texture_slots(data["texture_slots"], datablock.texture_slots)
+
+    @staticmethod
+    def dump(datablock: object) -> dict:
+        dumper = dump_anything.Dumper()
+        dumper.depth = 1
+        dumper.exclude_filter = IGNORED_ATTR
+        data = dumper.dump(datablock)
+
+        # Particle effectors
+        data["effector_weights"] = dumper.dump(datablock.effector_weights)
+        if datablock.force_field_1:
+            data["force_field_1"] = dumper.dump(datablock.force_field_1)
+        if datablock.force_field_2:
+            data["force_field_2"] = dumper.dump(datablock.force_field_2)
+
+        # Texture slots
+        data["texture_slots"] = dump_textures_slots(datablock.texture_slots)
+        data['animation_data'] = dump_animation_data(datablock)
+        return data
+
+    @staticmethod
+    def resolve(data: dict) -> object:
+        uuid = data.get('uuid')
+        return resolve_datablock_from_uuid(uuid, bpy.data.particles)
+
+    @staticmethod
+    def resolve_deps(datablock: object) -> [object]:
+        deps = [t.texture for t in datablock.texture_slots if t and t.texture]
+        deps.extend(resolve_animation_dependencies(datablock))
+        return deps
+
+_type = bpy.types.ParticleSettings
+_class = BlParticle

multi_user/bl_types/bl_scene.py

@@ -18,26 +18,23 @@
 
 import logging
 from pathlib import Path
+from uuid import uuid4
 
 import bpy
 import mathutils
-from deepdiff import DeepDiff
+from deepdiff import DeepDiff, Delta
 from replication.constants import DIFF_JSON, MODIFIED
 from replication.protocol import ReplicatedDatablock
-from replication.objects import Node
 
-from ..utils import flush_history
+from ..utils import flush_history, get_preferences
+from .bl_action import (dump_animation_data, load_animation_data,
+                        resolve_animation_dependencies)
 from .bl_collection import (dump_collection_children, dump_collection_objects,
                             load_collection_childrens, load_collection_objects,
                             resolve_collection_dependencies)
-from .bl_action import (load_animation_data,
-                        dump_animation_data,
-                        resolve_animation_dependencies)
-from .bl_datablock import stamp_uuid
-
+from .bl_datablock import resolve_datablock_from_uuid
 from .bl_file import get_filepath
 from .dump_anything import Dumper, Loader
-from ..preferences import get_preferences
 
 RENDER_SETTINGS = [
     'dither_intensity',
@@ -307,7 +304,8 @@ def dump_sequence(sequence: bpy.types.Sequence) -> dict:
     return data
 
 
-def load_sequence(sequence_data: dict, sequence_editor: bpy.types.SequenceEditor):
+def load_sequence(sequence_data: dict,
+                  sequence_editor: bpy.types.SequenceEditor):
     """ Load sequence from dumped data
 
         :arg sequence_data: sequence to dump
@@ -367,7 +365,7 @@ def load_sequence(sequence_data: dict, sequence_editor: bpy.types.SequenceEditor
                                                             **seq)
 
     loader = Loader()
-    # TODO: Support filepath updates
+
     loader.exclure_filter = ['filepath', 'sound', 'filenames', 'fps']
     loader.load(sequence, sequence_data)
     sequence.select = False
@@ -375,6 +373,7 @@ def load_sequence(sequence_data: dict, sequence_editor: bpy.types.SequenceEditor
 
 class BlScene(ReplicatedDatablock):
     is_root = True
+    use_delta = True
 
     bl_id = "scenes"
     bl_class = bpy.types.Scene
@@ -384,13 +383,12 @@ class BlScene(ReplicatedDatablock):
 
     @staticmethod
     def construct(data: dict) -> object:
-        datablock = bpy.data.scenes.new(data["name"])
-        datablock.uuid = data.get("uuid")
-
-        return datablock
+        return bpy.data.scenes.new(data["name"])
 
     @staticmethod
     def load(data: dict, datablock: object):
+        load_animation_data(data.get('animation_data'), datablock)
+
         # Load other meshes metadata
         loader = Loader()
         loader.load(datablock, data)
@@ -405,8 +403,9 @@ class BlScene(ReplicatedDatablock):
             datablock.world = bpy.data.worlds[data['world']]
 
         # Annotation
-        if 'grease_pencil' in data.keys():
-            datablock.grease_pencil = bpy.data.grease_pencils[data['grease_pencil']]
+        gpencil_uid = data.get('grease_pencil')
+        if gpencil_uid:
+            datablock.grease_pencil = resolve_datablock_from_uuid(gpencil_uid, bpy.data.grease_pencils)
 
         if get_preferences().sync_flags.sync_render_settings:
             if 'eevee' in data.keys():
@@ -418,15 +417,14 @@ class BlScene(ReplicatedDatablock):
             if 'render' in data.keys():
                 loader.load(datablock.render, data['render'])
 
-            if 'view_settings' in data.keys():
-                loader.load(datablock.view_settings, data['view_settings'])
+            view_settings = data.get('view_settings')
+            if view_settings:
+                loader.load(datablock.view_settings, view_settings)
                 if datablock.view_settings.use_curve_mapping and \
-                        'curve_mapping' in data['view_settings']:
+                        'curve_mapping' in view_settings:
                     # TODO: change this ugly fix
-                    datablock.view_settings.curve_mapping.white_level = data[
-                        'view_settings']['curve_mapping']['white_level']
-                    datablock.view_settings.curve_mapping.black_level = data[
-                        'view_settings']['curve_mapping']['black_level']
+                    datablock.view_settings.curve_mapping.white_level = view_settings['curve_mapping']['white_level']
+                    datablock.view_settings.curve_mapping.black_level = view_settings['curve_mapping']['black_level']
                     datablock.view_settings.curve_mapping.update()
 
         # Sequencer
@@ -442,19 +440,29 @@ class BlScene(ReplicatedDatablock):
                 if seq.name not in sequences:
                     vse.sequences.remove(seq)
             # Load existing sequences
-            for seq_name, seq_data in sequences.items():
+            for seq_data in sequences.values():
                 load_sequence(seq_data, vse)
         # If the sequence is no longer used, clear it
         elif datablock.sequence_editor and not sequences:
             datablock.sequence_editor_clear()
 
+        # Timeline markers
+        markers = data.get('timeline_markers')
+        if markers:
+            datablock.timeline_markers.clear()
+            for name, frame, camera in markers:
+                marker = datablock.timeline_markers.new(name, frame=frame)
+                if camera:
+                    marker.camera = resolve_datablock_from_uuid(camera, bpy.data.objects)
+                marker.select = False
         # FIXME: Find a better way after the replication big refacotoring
         # Keep other user from deleting collection object by flushing their history
         flush_history()
 
     @staticmethod
     def dump(datablock: object) -> dict:
-        stamp_uuid(datablock)
+        data = {}
+        data['animation_data'] = dump_animation_data(datablock)
 
         # Metadata
         scene_dumper = Dumper()
@@ -463,17 +471,14 @@ class BlScene(ReplicatedDatablock):
             'name',
             'world',
             'id',
-            'grease_pencil',
             'frame_start',
             'frame_end',
             'frame_step',
-            'uuid'
         ]
         if get_preferences().sync_flags.sync_active_camera:
             scene_dumper.include_filter.append('camera')
 
-        data = scene_dumper.dump(datablock)
-        dump_animation_data(datablock, data)
+        data.update(scene_dumper.dump(datablock))
 
         # Master collection
         data['collection'] = {}
@@ -521,6 +526,13 @@ class BlScene(ReplicatedDatablock):
                 dumped_sequences[seq.name] = dump_sequence(seq)
             data['sequences'] = dumped_sequences
 
+        # Timeline markers
+        if datablock.timeline_markers:
+            data['timeline_markers'] = [(m.name, m.frame, getattr(m.camera, 'uuid', None)) for m in datablock.timeline_markers]
+
+        if datablock.grease_pencil:
+            data['grease_pencil'] = datablock.grease_pencil.uuid
+ 
         return data
 
     @staticmethod
@@ -538,6 +550,8 @@ class BlScene(ReplicatedDatablock):
         if datablock.grease_pencil:
             deps.append(datablock.grease_pencil)
 
+        deps.extend(resolve_animation_dependencies(datablock))
+
         # Sequences
         vse = datablock.sequence_editor
         if vse:
@@ -550,11 +564,22 @@ class BlScene(ReplicatedDatablock):
                     for elem in sequence.elements:
                         sequence.append(
                             Path(bpy.path.abspath(sequence.directory),
-                                 elem.filename))
+                            elem.filename))
 
         return deps
 
-    def diff(self):
+    @staticmethod
+    def resolve(data: dict) -> object:
+        uuid = data.get('uuid')
+        name = data.get('name')
+        datablock = resolve_datablock_from_uuid(uuid, bpy.data.scenes)
+        if datablock is None:
+            datablock = bpy.data.scenes.get(name)
+
+        return datablock
+
+    @staticmethod
+    def compute_delta(last_data: dict, current_data: dict) -> Delta:
         exclude_path = []
 
         if not get_preferences().sync_flags.sync_render_settings:
@@ -566,7 +591,22 @@ class BlScene(ReplicatedDatablock):
         if not get_preferences().sync_flags.sync_active_camera:
             exclude_path.append("root['camera']")
 
-        return DeepDiff(self.data, self._dump(datablock=self.datablock), exclude_paths=exclude_path)
+        diff_params = {
+            'exclude_paths': exclude_path,
+            'ignore_order': True,
+            'report_repetition': True
+        }
+        delta_params = {
+            # 'mutate': True
+        }
+
+        return Delta(
+            DeepDiff(last_data,
+                     current_data,
+                     cache_size=5000,
+                     **diff_params),
+            **delta_params)
+
 
 _type = bpy.types.Scene
 _class = BlScene

multi_user/bl_types/bl_sound.py

@@ -23,38 +23,39 @@ from pathlib import Path
 import bpy
 
 from .bl_file import get_filepath, ensure_unpacked
-from .bl_datablock import BlDatablock
+from replication.protocol import ReplicatedDatablock
 from .dump_anything import Dumper, Loader
+from .bl_datablock import resolve_datablock_from_uuid
 
 
-class BlSound(BlDatablock):
+class BlSound(ReplicatedDatablock):
     bl_id = "sounds"
     bl_class = bpy.types.Sound
     bl_check_common = False
     bl_icon = 'SOUND'
     bl_reload_parent = False
 
+    @staticmethod
     def construct(data: dict) -> object:
         filename = data.get('filename')
 
         return bpy.data.sounds.load(get_filepath(filename))
 
-    def load(self, data, target):
+    @staticmethod
+    def load(data: dict, datablock: object):
         loader = Loader()
-        loader.load(target, data)
+        loader.load(datablock, data)
 
-    def diff(self):
-        return False
-
-    def dump(self, instance=None):
-        filename = Path(instance.filepath).name
+    @staticmethod
+    def dump(datablock: object) -> dict:
+        filename = Path(datablock.filepath).name
 
         if not filename:
-            raise FileExistsError(instance.filepath)
+            raise FileExistsError(datablock.filepath)
 
         return {
             'filename': filename,
-            'name': instance.name
+            'name': datablock.name
         }
 
     @staticmethod
@@ -66,3 +67,15 @@ class BlSound(BlDatablock):
             deps.append(Path(bpy.path.abspath(datablock.filepath)))
 
         return deps
+
+    @staticmethod
+    def resolve(data: dict) -> object:
+        uuid = data.get('uuid')
+        return resolve_datablock_from_uuid(uuid, bpy.data.sounds)
+
+    @staticmethod
+    def needs_update(datablock: object, data:dict)-> bool:
+        return False
+
+_type = bpy.types.Sound
+_class = BlSound

multi_user/bl_types/bl_speaker.py

@@ -20,26 +20,31 @@ import bpy
 import mathutils
 
 from .dump_anything import Loader, Dumper
-from .bl_datablock import BlDatablock
+from replication.protocol import ReplicatedDatablock
+from .bl_datablock import resolve_datablock_from_uuid
+from .bl_action import dump_animation_data, load_animation_data, resolve_animation_dependencies
 
+class BlSpeaker(ReplicatedDatablock):
+    use_delta = True
 
-class BlSpeaker(BlDatablock):
     bl_id = "speakers"
     bl_class = bpy.types.Speaker
     bl_check_common = False
     bl_icon = 'SPEAKER'
     bl_reload_parent = False
 
+    @staticmethod
     def load(data: dict, datablock: object):
         loader = Loader()
-        loader.load(target, data)
+        loader.load(datablock, data)
+        load_animation_data(data.get('animation_data'), datablock)
 
+    @staticmethod
     def construct(data: dict) -> object:
         return bpy.data.speakers.new(data["name"])
 
+    @staticmethod
     def dump(datablock: object) -> dict:
-        assert(instance)
-
         dumper = Dumper()
         dumper.depth = 1
         dumper.include_filter = [
@@ -58,10 +63,18 @@ class BlSpeaker(BlDatablock):
             'cone_volume_outer'
         ]
 
-        return dumper.dump(instance)
+        data = dumper.dump(datablock)
+        data['animation_data'] = dump_animation_data(datablock)
+        return data
+
+    @staticmethod
+    def resolve(data: dict) -> object:
+        uuid = data.get('uuid')
+        return resolve_datablock_from_uuid(uuid, bpy.data.speakers)
 
     @staticmethod
     def resolve_deps(datablock: object) -> [object]:
+        # TODO: resolve material
         deps = []
 
         sound = datablock.sound
@@ -69,6 +82,8 @@ class BlSpeaker(BlDatablock):
         if sound:
             deps.append(sound)
 
+        deps.extend(resolve_animation_dependencies(datablock))
         return deps
 
-
+_type = bpy.types.Speaker
+_class = BlSpeaker

multi_user/bl_types/bl_texture.py

@@ -20,25 +20,32 @@ import bpy
 import mathutils
 
 from .dump_anything import Loader, Dumper
-from .bl_datablock import BlDatablock
+from replication.protocol import ReplicatedDatablock
+from .bl_datablock import resolve_datablock_from_uuid
+from .bl_action import dump_animation_data, load_animation_data, resolve_animation_dependencies
+import bpy.types as T
 
+class BlTexture(ReplicatedDatablock):
+    use_delta = True
 
-class BlTexture(BlDatablock):
     bl_id = "textures"
     bl_class = bpy.types.Texture
     bl_check_common = False
     bl_icon = 'TEXTURE'
     bl_reload_parent = False
 
+    @staticmethod
     def load(data: dict, datablock: object):
         loader = Loader()
-        loader.load(target, data)
+        loader.load(datablock, data)
+        load_animation_data(data.get('animation_data'), datablock)
 
+    @staticmethod
     def construct(data: dict) -> object:
         return bpy.data.textures.new(data["name"], data["type"])
 
+    @staticmethod
     def dump(datablock: object) -> dict:
-        assert(instance)
 
         dumper = Dumper()
         dumper.depth = 1
@@ -52,15 +59,22 @@ class BlTexture(BlDatablock):
             'name_full'
         ]
 
-        data = dumper.dump(instance)
-        color_ramp = getattr(instance, 'color_ramp', None)
+        data = dumper.dump(datablock)
+
+        color_ramp = getattr(datablock, 'color_ramp', None)
 
         if color_ramp:
             dumper.depth = 4
             data['color_ramp'] = dumper.dump(color_ramp)
 
+        data['animation_data'] = dump_animation_data(datablock)
         return data
 
+    @staticmethod
+    def resolve(data: dict) -> object:
+        uuid = data.get('uuid')
+        return resolve_datablock_from_uuid(uuid, bpy.data.textures)
+
     @staticmethod
     def resolve_deps(datablock: object) -> [object]:
         deps = []
@@ -70,6 +84,14 @@ class BlTexture(BlDatablock):
         if image:
             deps.append(image)
 
+        deps.extend(resolve_animation_dependencies(datablock))
+
         return deps
 
-
+_type = [T.WoodTexture, T.VoronoiTexture,
+         T.StucciTexture, T.NoiseTexture,
+         T.MusgraveTexture, T.MarbleTexture,
+         T.MagicTexture, T.ImageTexture,
+         T.DistortedNoiseTexture, T.CloudsTexture,
+         T.BlendTexture]
+_class = BlTexture

multi_user/bl_types/bl_volume.py

@@ -21,32 +21,26 @@ import mathutils
 from pathlib import Path
 
 from .dump_anything import Loader, Dumper
-from .bl_datablock import BlDatablock, get_datablock_from_uuid
+from replication.protocol import ReplicatedDatablock
+from .bl_datablock import get_datablock_from_uuid, resolve_datablock_from_uuid
 from .bl_material import dump_materials_slots, load_materials_slots
+from .bl_action import dump_animation_data, load_animation_data, resolve_animation_dependencies
+
+class BlVolume(ReplicatedDatablock):
+    use_delta = True
 
-class BlVolume(BlDatablock):
     bl_id = "volumes"
     bl_class = bpy.types.Volume
     bl_check_common = False
     bl_icon = 'VOLUME_DATA'
     bl_reload_parent = False
 
-    def load(data: dict, datablock: object):
-        loader = Loader()
-        loader.load(target, data)
-        loader.load(target.display, data['display'])
-
-        # MATERIAL SLOTS
-        src_materials = data.get('materials', None)
-        if src_materials:
-            load_materials_slots(src_materials, target.materials)
-
+    @staticmethod
     def construct(data: dict) -> object:
         return bpy.data.volumes.new(data["name"])
 
+    @staticmethod
     def dump(datablock: object) -> dict:
-        assert(instance)
-
         dumper = Dumper()
         dumper.depth = 1
         dumper.exclude_filter = [
@@ -60,17 +54,35 @@ class BlVolume(BlDatablock):
             'use_fake_user'
         ]
 
-        data = dumper.dump(instance)
+        data = dumper.dump(datablock)
 
-        data['display'] = dumper.dump(instance.display)
+        data['display'] = dumper.dump(datablock.display)
 
          # Fix material index
-        data['materials'] = dump_materials_slots(instance.materials)
-
+        data['materials'] = dump_materials_slots(datablock.materials)
+        data['animation_data'] = dump_animation_data(datablock)
         return data
 
+    @staticmethod
+    def load(data: dict, datablock: object):
+        load_animation_data(data.get('animation_data'), datablock)
+        loader = Loader()
+        loader.load(datablock, data)
+        loader.load(datablock.display, data['display'])
+
+        # MATERIAL SLOTS
+        src_materials = data.get('materials', None)
+        if src_materials:
+            load_materials_slots(src_materials, datablock.materials)
+
+    @staticmethod
+    def resolve(data: dict) -> object:
+        uuid = data.get('uuid')
+        return resolve_datablock_from_uuid(uuid, bpy.data.volumes)
+
     @staticmethod
     def resolve_deps(datablock: object) -> [object]:
+        # TODO: resolve material
         deps = []
 
         external_vdb = Path(bpy.path.abspath(datablock.filepath))
@@ -81,6 +93,9 @@ class BlVolume(BlDatablock):
             if material:
                 deps.append(material)
 
+        deps.extend(resolve_animation_dependencies(datablock))
+
         return deps
 
-
+_type = bpy.types.Volume
+_class = BlVolume

multi_user/bl_types/bl_world.py

@@ -20,35 +20,42 @@ import bpy
 import mathutils
 
 from .dump_anything import Loader, Dumper
-from .bl_datablock import BlDatablock
+from replication.protocol import ReplicatedDatablock
 from .bl_material import (load_node_tree,
                           dump_node_tree,
                           get_node_tree_dependencies)
 
+from .bl_datablock import resolve_datablock_from_uuid
+from .bl_action import dump_animation_data, load_animation_data, resolve_animation_dependencies
+
+
+class BlWorld(ReplicatedDatablock):
+    use_delta = True
 
-class BlWorld(BlDatablock):
     bl_id = "worlds"
     bl_class = bpy.types.World
     bl_check_common = True
     bl_icon = 'WORLD_DATA'
     bl_reload_parent = False
 
+    @staticmethod
     def construct(data: dict) -> object:
         return bpy.data.worlds.new(data["name"])
 
+    @staticmethod
     def load(data: dict, datablock: object):
+        load_animation_data(data.get('animation_data'), datablock)
         loader = Loader()
-        loader.load(target, data)
+        loader.load(datablock, data)
 
         if data["use_nodes"]:
-            if target.node_tree is None:
-                target.use_nodes = True
+            if datablock.node_tree is None:
+                datablock.use_nodes = True
 
-            load_node_tree(data['node_tree'], target.node_tree)
+            load_node_tree(data['node_tree'], datablock.node_tree)
 
+    @staticmethod
     def dump(datablock: object) -> dict:
-        assert(instance)
-
         world_dumper = Dumper()
         world_dumper.depth = 1
         world_dumper.include_filter = [
@@ -56,12 +63,18 @@ class BlWorld(BlDatablock):
             "name",
             "color"
         ]
-        data = world_dumper.dump(instance)
-        if instance.use_nodes:
-            data['node_tree'] = dump_node_tree(instance.node_tree)
+        data = world_dumper.dump(datablock)
+        if datablock.use_nodes:
+            data['node_tree'] = dump_node_tree(datablock.node_tree)
 
+        data['animation_data'] = dump_animation_data(datablock)
         return data
     
+    @staticmethod
+    def resolve(data: dict) -> object:
+        uuid = data.get('uuid')
+        return resolve_datablock_from_uuid(uuid, bpy.data.worlds)
+
     @staticmethod
     def resolve_deps(datablock: object) -> [object]:
         deps = []
@@ -69,4 +82,8 @@ class BlWorld(BlDatablock):
         if datablock.use_nodes:
             deps.extend(get_node_tree_dependencies(datablock.node_tree))
 
+        deps.extend(resolve_animation_dependencies(datablock))
         return deps
+
+_type = bpy.types.World
+_class = BlWorld

multi_user/bl_types/dump_anything.py

@@ -507,16 +507,12 @@ class Loader:
         _constructors = {
             T.ColorRampElement: (CONSTRUCTOR_NEW, ["position"]),
             T.ParticleSettingsTextureSlot: (CONSTRUCTOR_ADD, []),
-            T.Modifier: (CONSTRUCTOR_NEW, ["name", "type"]),
             T.GpencilModifier: (CONSTRUCTOR_NEW, ["name", "type"]),
-            T.Constraint: (CONSTRUCTOR_NEW, ["type"]),
         }
 
         destructors = {
             T.ColorRampElement: DESTRUCTOR_REMOVE,
-            T.Modifier: DESTRUCTOR_CLEAR,
             T.GpencilModifier: DESTRUCTOR_CLEAR,
-            T.Constraint: DESTRUCTOR_REMOVE,
         }
         element_type = element.bl_rna_property.fixed_type
 

multi_user/environment.py

@@ -24,20 +24,25 @@ import sys
 from pathlib import Path
 import socket
 import re
+import bpy
 
 VERSION_EXPR = re.compile('\d+.\d+.\d+')
-
-THIRD_PARTY = os.path.join(os.path.dirname(os.path.abspath(__file__)), "libs")
 DEFAULT_CACHE_DIR = os.path.join(
     os.path.dirname(os.path.abspath(__file__)), "cache")
+REPLICATION_DEPENDENCIES = {
+    "zmq",
+    "deepdiff"
+}
+LIBS = os.path.join(os.path.dirname(os.path.abspath(__file__)), "libs")
+REPLICATION = os.path.join(LIBS,"replication")
+
 PYTHON_PATH = None
 SUBPROCESS_DIR = None
 
-
 rtypes = []
 
 
-def module_can_be_imported(name):
+def module_can_be_imported(name: str) -> bool:
     try:
         __import__(name)
         return True
@@ -50,7 +55,7 @@ def install_pip():
     subprocess.run([str(PYTHON_PATH), "-m", "ensurepip"])
 
 
-def install_package(name, version):
+def install_package(name: str, install_dir: str):
     logging.info(f"installing {name} version...")
     env = os.environ
     if "PIP_REQUIRE_VIRTUALENV" in env:
@@ -60,12 +65,13 @@ def install_package(name, version):
         # env var for the subprocess.
         env = os.environ.copy()
         del env["PIP_REQUIRE_VIRTUALENV"]
-    subprocess.run([str(PYTHON_PATH), "-m", "pip", "install", f"{name}=={version}"], env=env)
+    subprocess.run([str(PYTHON_PATH), "-m", "pip", "install", f"{name}", "-t", install_dir], env=env)
 
     if name in sys.modules:
         del sys.modules[name]
 
-def check_package_version(name, required_version):
+
+def check_package_version(name: str, required_version: str):
     logging.info(f"Checking {name} version...")
     out = subprocess.run([str(PYTHON_PATH), "-m", "pip", "show", name], capture_output=True)
 
@@ -77,6 +83,7 @@ def check_package_version(name, required_version):
         logging.info(f"{name} need an update")
         return False
 
+
 def get_ip():
     """
     Retrieve the main network interface IP.
@@ -94,7 +101,25 @@ def check_dir(dir):
         os.makedirs(dir)
 
 
-def setup(dependencies, python_path):
+def setup_paths(paths: list):
+    """ Add missing path to sys.path
+    """ 
+    for path in paths:
+        if path not in sys.path:
+            logging.debug(f"Adding {path} dir to the path.")
+            sys.path.insert(0, path)
+
+
+def remove_paths(paths: list):
+    """ Remove list of path from sys.path
+    """
+    for path in paths:
+        if path in sys.path:
+            logging.debug(f"Removing {path} dir from the path.")
+            sys.path.remove(path)
+
+
+def install_modules(dependencies: list, python_path: str, install_dir: str):
     global PYTHON_PATH, SUBPROCESS_DIR
 
     PYTHON_PATH = Path(python_path)
@@ -103,9 +128,23 @@ def setup(dependencies, python_path):
     if not module_can_be_imported("pip"):
         install_pip()
 
-    for package_name, package_version in dependencies:
+    for package_name in dependencies:
         if not module_can_be_imported(package_name):
-            install_package(package_name, package_version)
+            install_package(package_name, install_dir=install_dir)
             module_can_be_imported(package_name)
-        elif not check_package_version(package_name, package_version):
-            install_package(package_name, package_version)
+
+def register():
+    if bpy.app.version >= (2,91,0):
+            python_binary_path = sys.executable
+    else:
+        python_binary_path = bpy.app.binary_path_python
+
+    for module_name in list(sys.modules.keys()):
+        if 'replication' in module_name:
+            del sys.modules[module_name]
+
+    setup_paths([LIBS, REPLICATION])
+    install_modules(REPLICATION_DEPENDENCIES, python_binary_path, install_dir=LIBS)
+
+def unregister():
+    remove_paths([REPLICATION, LIBS])

multi_user/handlers.py

@@ -0,0 +1,155 @@
+# ##### BEGIN GPL LICENSE BLOCK #####
+#
+#   This program is free software: you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation, either version 3 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+#
+# ##### END GPL LICENSE BLOCK #####
+
+import logging
+
+import bpy
+from bpy.app.handlers import persistent
+from replication import porcelain
+from replication.constants import RP_COMMON, STATE_ACTIVE, STATE_SYNCING, UP
+from replication.exception import ContextError, NonAuthorizedOperationError
+from replication.interface import session
+
+from . import shared_data, utils
+
+
+def sanitize_deps_graph(remove_nodes: bool = False):
+    """ Cleanup the replication graph
+    """
+    if session and session.state == STATE_ACTIVE:
+        start = utils.current_milli_time()
+        rm_cpt = 0
+        for node in session.repository.graph.values():
+            node.instance = session.repository.rdp.resolve(node.data)
+            if node is None \
+                    or (node.state == UP and not node.instance):
+                if remove_nodes:
+                    try:
+                        porcelain.rm(session.repository,
+                                     node.uuid,
+                                     remove_dependencies=False)
+                        logging.info(f"Removing {node.uuid}")
+                        rm_cpt += 1
+                    except NonAuthorizedOperationError:
+                        continue
+        logging.info(f"Sanitize took { utils.current_milli_time()-start} ms, removed {rm_cpt} nodes")
+
+
+def update_external_dependencies():
+    """Force external dependencies(files such as images) evaluation 
+    """
+    external_types = ['WindowsPath', 'PosixPath', 'Image']
+    nodes_ids = [n.uuid for n in session.repository.graph.values() if n.data['type_id'] in external_types]
+    for node_id in nodes_ids:
+        node = session.repository.graph.get(node_id)
+        if node and node.owner in [session.repository.username, RP_COMMON]:
+            porcelain.commit(session.repository, node_id)
+            porcelain.push(session.repository, 'origin', node_id)
+
+
+@persistent
+def on_scene_update(scene):
+    """Forward blender depsgraph update to replication
+    """
+    if session and session.state == STATE_ACTIVE:
+        context = bpy.context
+        blender_depsgraph = bpy.context.view_layer.depsgraph
+        dependency_updates = [u for u in blender_depsgraph.updates]
+        settings = utils.get_preferences()
+        incoming_updates = shared_data.session.applied_updates
+
+        distant_update = [getattr(u.id, 'uuid', None) for u in dependency_updates if getattr(u.id, 'uuid', None) in incoming_updates]
+        if distant_update:
+            for u in distant_update:
+                shared_data.session.applied_updates.remove(u)
+            logging.debug(f"Ignoring distant update of {dependency_updates[0].id.name}")
+            return
+
+        # NOTE: maybe we don't need to check each update but only the first
+        for update in reversed(dependency_updates):
+            update_uuid = getattr(update.id, 'uuid', None)
+            if update_uuid:
+                node = session.repository.graph.get(update.id.uuid)
+                check_common = session.repository.rdp.get_implementation(update.id).bl_check_common
+
+                if node and (node.owner == session.repository.username or check_common):
+                    logging.debug(f"Evaluate {update.id.name}")
+                    if node.state == UP:
+                        try:
+                            porcelain.commit(session.repository, node.uuid)
+                            porcelain.push(session.repository,
+                                           'origin', node.uuid)
+                        except ReferenceError:
+                            logging.debug(f"Reference error {node.uuid}")
+                        except ContextError as e:
+                            logging.debug(e)
+                        except Exception as e:
+                            logging.error(e)
+                else:
+                    continue
+            elif isinstance(update.id, bpy.types.Scene):
+                scene = bpy.data.scenes.get(update.id.name)
+                scn_uuid = porcelain.add(session.repository, scene)
+                porcelain.commit(session.repository, scn_uuid)
+                porcelain.push(session.repository, 'origin', scn_uuid)
+
+        scene_graph_changed = [u for u in reversed(dependency_updates) if getattr(u.id, 'uuid', None) and isinstance(u.id,(bpy.types.Scene,bpy.types.Collection))] 
+        if scene_graph_changed:
+            porcelain.purge_orphan_nodes(session.repository)
+
+        update_external_dependencies()
+
+@persistent
+def resolve_deps_graph(dummy):
+    """Resolve deps graph
+
+    Temporary solution to resolve each node pointers after a Undo.
+    A future solution should be to avoid storing dataclock reference...
+
+    """
+    if session and session.state == STATE_ACTIVE:
+        sanitize_deps_graph(remove_nodes=True)
+
+
+@persistent
+def load_pre_handler(dummy):
+    if session and session.state in [STATE_ACTIVE, STATE_SYNCING]:
+        bpy.ops.session.stop()
+
+
+@persistent
+def update_client_frame(scene):
+    if session and session.state == STATE_ACTIVE:
+        porcelain.update_user_metadata(session.repository, {
+            'frame_current': scene.frame_current
+        })
+
+
+def register():
+    bpy.app.handlers.undo_post.append(resolve_deps_graph)
+    bpy.app.handlers.redo_post.append(resolve_deps_graph)
+
+    bpy.app.handlers.load_pre.append(load_pre_handler)
+    bpy.app.handlers.frame_change_pre.append(update_client_frame)
+
+
+def unregister():
+    bpy.app.handlers.undo_post.remove(resolve_deps_graph)
+    bpy.app.handlers.redo_post.remove(resolve_deps_graph)
+
+    bpy.app.handlers.load_pre.remove(load_pre_handler)
+    bpy.app.handlers.frame_change_pre.remove(update_client_frame)

multi_user/icons/__init__.py

@@ -15,31 +15,31 @@
 #
 # ##### END GPL LICENSE BLOCK #####
 
-
 import bpy
-import mathutils
+import os
 
-from .dump_anything import Loader, Dumper
-from .bl_datablock import BlDatablock
+from pathlib import Path
+import bpy.utils.previews
+
+def register():
+
+    global icons_col
+
+    pcoll = bpy.utils.previews.new()
+    icons_dir = os.path.join(os.path.dirname(__file__), ".")
+    for png in Path(icons_dir).rglob("*.png"):
+        pcoll.load(png.stem, str(png), "IMAGE")
+
+    icons_col = pcoll
 
 
-class BlLibrary(BlDatablock):
-    bl_id = "libraries"
-    bl_class = bpy.types.Library
-    bl_check_common = False
-    bl_icon = 'LIBRARY_DATA_DIRECT'
-    bl_reload_parent = False
+def unregister():
 
-    def construct(data: dict) -> object:
-        with bpy.data.libraries.load(filepath=data["filepath"], link=True) as (sourceData, targetData):
-            targetData = sourceData
-            return sourceData
-    def load(self, data, target):
+    global icons_col
+
+    try:
+        bpy.utils.previews.remove(icons_col)
+    except Exception:
         pass
 
-    def dump(self, instance=None):
-        assert(instance)
-        dumper = Dumper()
-        return dumper.dump(instance)
-
-
+    icons_col = None

multi_user/io_bpy/bl_particle.py

@@ -1,90 +0,0 @@
-import bpy
-import mathutils
-
-from . import dump_anything
-from .bl_datablock import BlDatablock, get_datablock_from_uuid
-
-
-def dump_textures_slots(texture_slots: bpy.types.bpy_prop_collection) -> list:
-    """ Dump every texture slot collection as the form:
-        [(index, slot_texture_uuid, slot_texture_name), (), ...]
-    """
-    dumped_slots = []
-    for index, slot in enumerate(texture_slots):
-        if slot and slot.texture:
-            dumped_slots.append((index, slot.texture.uuid, slot.texture.name))
-
-    return dumped_slots
-
-
-def load_texture_slots(dumped_slots: list, target_slots: bpy.types.bpy_prop_collection):
-    """
-    """
-    for index, slot in enumerate(target_slots):
-        if slot:
-            target_slots.clear(index)
-
-    for index, slot_uuid, slot_name in dumped_slots:
-        target_slots.create(index).texture = get_datablock_from_uuid(
-            slot_uuid, slot_name
-        )
-
-IGNORED_ATTR = [
-    "is_embedded_data",
-    "is_evaluated",
-    "is_fluid",
-    "is_library_indirect",
-    "users"
-]
-
-class BlParticle(BlDatablock):
-    bl_id = "particles"
-    bl_class = bpy.types.ParticleSettings
-    bl_icon = "PARTICLES"
-    bl_check_common = False
-    bl_reload_parent = False
-
-    def _construct(self, data):
-        instance = bpy.data.particles.new(data["name"])
-        instance.uuid = self.uuid
-        return instance
-
-    def _load_implementation(self, data, target):
-        dump_anything.load(target, data)
-
-        dump_anything.load(target.effector_weights, data["effector_weights"])
-
-        # Force field
-        force_field_1 = data.get("force_field_1", None)
-        if force_field_1:
-            dump_anything.load(target.force_field_1, force_field_1)
-
-        force_field_2 = data.get("force_field_2", None)
-        if force_field_2:
-            dump_anything.load(target.force_field_2, force_field_2)
-
-        # Texture slots
-        load_texture_slots(data["texture_slots"], target.texture_slots)
-
-    def _dump_implementation(self, data, instance=None):
-        assert instance
-
-        dumper = dump_anything.Dumper()
-        dumper.depth = 1
-        dumper.exclude_filter = IGNORED_ATTR
-        data = dumper.dump(instance)
-
-        # Particle effectors
-        data["effector_weights"] = dumper.dump(instance.effector_weights)
-        if instance.force_field_1:
-            data["force_field_1"] = dumper.dump(instance.force_field_1)
-        if instance.force_field_2:
-            data["force_field_2"] = dumper.dump(instance.force_field_2)
-
-        # Texture slots
-        data["texture_slots"] = dump_textures_slots(instance.texture_slots)
-
-        return data
-
-    def _resolve_deps_implementation(self):
-        return [t.texture for t in self.instance.texture_slots if t and t.texture]

multi_user/preferences.py

@@ -17,6 +17,7 @@
 
 import random
 import logging
+from uuid import uuid4
 import bpy
 import string
 import re
@@ -24,8 +25,8 @@ import os
 
 from pathlib import Path
 
-from . import io_bpy, environment, addon_updater_ops, presence, ui
-from .utils import get_preferences, get_expanded_icon
+from . import bl_types, environment, addon_updater_ops, presence, ui
+from .utils import get_preferences, get_expanded_icon, get_folder_size
 from replication.constants import RP_COMMON
 from replication.interface import session
 
@@ -33,6 +34,25 @@ from replication.interface import session
 IP_REGEX = re.compile("^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$")
 HOSTNAME_REGEX = re.compile("^(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA-Z0-9])\.)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9\-]*[A-Za-z0-9])$")
 
+#SERVER PRESETS AT LAUNCH
+DEFAULT_PRESETS = {
+    "localhost" : {
+        "server_name": "localhost",
+        "ip": "localhost",
+        "port": 5555,
+        "use_admin_password": True,
+        "admin_password": "admin",
+        "server_password": ""
+    },
+    "public session" : {
+        "server_name": "public session",
+        "ip": "51.75.71.183",
+        "port": 5555,
+        "admin_password": "",
+        "server_password": ""
+    },
+}
+
 def randomColor():
     """Generate a random color """
     r = random.random()
@@ -66,8 +86,6 @@ def update_ip(self, context):
         self['ip'] = "127.0.0.1"
 
 
-
-
 def update_directory(self, context):
     new_dir = Path(self.cache_directory)
     if new_dir.exists() and any(Path(self.cache_directory).iterdir()):
@@ -93,6 +111,16 @@ class ReplicatedDatablock(bpy.types.PropertyGroup):
     auto_push: bpy.props.BoolProperty(default=True)
     icon: bpy.props.StringProperty()
 
+class ServerPreset(bpy.types.PropertyGroup):
+    server_name: bpy.props.StringProperty(default="")
+    ip: bpy.props.StringProperty(default="127.0.0.1", update=update_ip)
+    port: bpy.props.IntProperty(default=5555)
+    use_server_password: bpy.props.BoolProperty(default=False)
+    server_password: bpy.props.StringProperty(default="", subtype = "PASSWORD")
+    use_admin_password: bpy.props.BoolProperty(default=False)
+    admin_password: bpy.props.StringProperty(default="", subtype = "PASSWORD")
+    is_online: bpy.props.BoolProperty(default=False)
+    is_private: bpy.props.BoolProperty(default=False)
 
 def set_sync_render_settings(self, value):
     self['sync_render_settings'] = value
@@ -142,24 +170,60 @@ class ReplicationFlags(bpy.types.PropertyGroup):
 class SessionPrefs(bpy.types.AddonPreferences):
     bl_idname = __package__
 
-    ip: bpy.props.StringProperty(
-        name="ip",
-        description='Distant host ip',
-        default="127.0.0.1",
-        update=update_ip)
+    # User settings
     username: bpy.props.StringProperty(
         name="Username",
         default=f"user_{random_string_digits()}"
     )
     client_color: bpy.props.FloatVectorProperty(
         name="client_instance_color",
+        description='User color',
         subtype='COLOR',
-        default=randomColor())
-    port: bpy.props.IntProperty(
-        name="port",
+        default=randomColor()
+    )
+    # Current server settings
+    server_name: bpy.props.StringProperty(
+        name="server_name",
+        description="Custom name of the server",
+        default='localhost',
+    )
+    server_index: bpy.props.IntProperty(
+        name="server_index",
+        description="index of the server",
+    )
+    # User host session settings
+    host_port: bpy.props.IntProperty(
+        name="host_port",
         description='Distant host port',
         default=5555
     )
+    host_use_server_password: bpy.props.BoolProperty(
+        name="use_server_password",
+        description='Use session password',
+        default=False
+    )
+    host_server_password: bpy.props.StringProperty(
+        name="server_password",
+        description='Session password',
+        subtype='PASSWORD'
+    )
+    host_use_admin_password: bpy.props.BoolProperty(
+        name="use_admin_password",
+        description='Use admin password',
+        default=True
+    )
+    host_admin_password: bpy.props.StringProperty(
+        name="admin_password",
+        description='Admin password',
+        subtype='PASSWORD',
+        default='admin'
+    )
+    # Other
+    is_first_launch: bpy.props.BoolProperty(
+        name="is_fnirst_launch",
+        description="First time lauching the addon",
+        default=True
+    )
     sync_flags: bpy.props.PointerProperty(
         type=ReplicationFlags
     )
@@ -183,6 +247,11 @@ class SessionPrefs(bpy.types.AddonPreferences):
         description='connection timeout before disconnection',
         default=5000
     )
+    ping_timeout: bpy.props.IntProperty(
+        name='ping timeout',
+        description='check if servers are online',
+        default=500
+    )
     # Replication update settings
     depsgraph_update_rate: bpy.props.FloatProperty(
         name='depsgraph update rate (s)',
@@ -194,11 +263,12 @@ class SessionPrefs(bpy.types.AddonPreferences):
         description="Remove filecache from memory",
         default=False
     )
-    # for UI
+    # For UI
     category: bpy.props.EnumProperty(
         name="Category",
         description="Preferences Category",
         items=[
+            ('PREF', "Preferences", "Preferences of this add-on"),
             ('CONFIG', "Configuration", "Configuration of this add-on"),
             ('UPDATE', "Update", "Update this add-on"),
         ],
@@ -242,31 +312,58 @@ class SessionPrefs(bpy.types.AddonPreferences):
         step=1,
         subtype='PERCENTAGE',
     )
+    presence_text_distance: bpy.props.FloatProperty(
+        name="Distance text visibilty",
+        description="Adjust the distance visibilty of user's mode/name",
+        min=0.1,
+        max=10000,
+        default=100,
+    )
     conf_session_identity_expanded: bpy.props.BoolProperty(
         name="Identity",
         description="Identity",
-        default=True
+        default=False
     )
     conf_session_net_expanded: bpy.props.BoolProperty(
         name="Net",
         description="net",
-        default=True
+        default=False
     )
     conf_session_hosting_expanded: bpy.props.BoolProperty(
         name="Rights",
         description="Rights",
         default=False
     )
+    conf_session_rep_expanded: bpy.props.BoolProperty(
+        name="Replication",
+        description="Replication",
+        default=False
+    )
     conf_session_cache_expanded: bpy.props.BoolProperty(
         name="Cache",
         description="cache",
         default=False
     )
+    conf_session_log_expanded: bpy.props.BoolProperty(
+        name="conf_session_log_expanded",
+        description="conf_session_log_expanded",
+        default=False
+    )
     conf_session_ui_expanded: bpy.props.BoolProperty(
         name="Interface",
         description="Interface",
         default=False
     )
+    sidebar_repository_shown: bpy.props.BoolProperty(
+        name="sidebar_repository_shown",
+        description="sidebar_repository_shown",
+        default=False
+    )
+    sidebar_advanced_shown: bpy.props.BoolProperty(
+        name="sidebar_advanced_shown",
+        description="sidebar_advanced_shown",
+        default=False
+    )
     sidebar_advanced_rep_expanded: bpy.props.BoolProperty(
         name="sidebar_advanced_rep_expanded",
         description="sidebar_advanced_rep_expanded",
@@ -277,6 +374,11 @@ class SessionPrefs(bpy.types.AddonPreferences):
         description="sidebar_advanced_log_expanded",
         default=False
     )
+    sidebar_advanced_uinfo_expanded: bpy.props.BoolProperty(
+        name="sidebar_advanced_uinfo_expanded",
+        description="sidebar_advanced_uinfo_expanded",
+        default=False
+    )
     sidebar_advanced_net_expanded: bpy.props.BoolProperty(
         name="sidebar_advanced_net_expanded",
         description="sidebar_advanced_net_expanded",
@@ -321,6 +423,19 @@ class SessionPrefs(bpy.types.AddonPreferences):
         max=59
     )
 
+    # Server preset
+    def server_list_callback(scene, context):
+        settings = get_preferences()
+        enum = []
+        for i in settings.server_preset:
+            enum.append((i.name, i.name, ""))
+        return enum
+
+    server_preset: bpy.props.CollectionProperty(
+        name="server preset",
+        type=ServerPreset,
+    )
+
     # Custom panel
     panel_category: bpy.props.StringProperty(
         description="Choose a name for the category of the panel",
@@ -329,38 +444,28 @@ class SessionPrefs(bpy.types.AddonPreferences):
 
     def draw(self, context):
         layout = self.layout
-
         layout.row().prop(self, "category", expand=True)
 
+        if self.category == 'PREF':
+            grid = layout.column()
+
+            box = grid.box()
+            row = box.row()
+            # USER SETTINGS
+            split = row.split(factor=0.7, align=True)
+            split.prop(self, "username", text="User")
+            split.prop(self, "client_color", text="")
+
+            row = box.row()
+            row.label(text="Hide settings:")
+            row = box.row()
+            row.prop(self, "sidebar_advanced_shown", text="Hide “Advanced” settings in side pannel (Not in session)")
+            row = box.row()
+            row.prop(self, "sidebar_repository_shown", text="Hide “Repository” settings in side pannel (In session)")
+
         if self.category == 'CONFIG':
             grid = layout.column()
 
-            # USER INFORMATIONS
-            box = grid.box()
-            box.prop(
-                self, "conf_session_identity_expanded", text="User information",
-                icon=get_expanded_icon(self.conf_session_identity_expanded),
-                emboss=False)
-            if self.conf_session_identity_expanded:
-                box.row().prop(self, "username", text="name")
-                box.row().prop(self, "client_color", text="color")
-
-            # NETWORK SETTINGS
-            box = grid.box()
-            box.prop(
-                self, "conf_session_net_expanded", text="Networking",
-                icon=get_expanded_icon(self.conf_session_net_expanded),
-                emboss=False)
-
-            if self.conf_session_net_expanded:
-                box.row().prop(self, "ip", text="Address")
-                row = box.row()
-                row.label(text="Port:")
-                row.prop(self, "port", text="")
-                row = box.row()
-                row.label(text="Init the session from:")
-                row.prop(self, "init_method", text="")
-
             # HOST SETTINGS
             box = grid.box()
             box.prop(
@@ -368,9 +473,57 @@ class SessionPrefs(bpy.types.AddonPreferences):
                 icon=get_expanded_icon(self.conf_session_hosting_expanded),
                 emboss=False)
             if self.conf_session_hosting_expanded:
+                row = box.row()
+                row.prop(self, "host_port", text="Port: ")
                 row = box.row()
                 row.label(text="Init the session from:")
                 row.prop(self, "init_method", text="")
+                row = box.row()
+                col = row.column()
+                col.prop(self, "host_use_server_password", text="Server password:")
+                col = row.column()
+                col.enabled = True if self.host_use_server_password else False
+                col.prop(self, "host_server_password", text="")
+                row = box.row()
+                col = row.column()
+                col.prop(self, "host_use_admin_password", text="Admin password:")
+                col = row.column()
+                col.enabled = True if self.host_use_admin_password else False
+                col.prop(self, "host_admin_password", text="")
+
+            # NETWORKING
+            box = grid.box()
+            box.prop(
+                self, "conf_session_net_expanded", text="Network",
+                icon=get_expanded_icon(self.conf_session_net_expanded), 
+                emboss=False)
+            if self.conf_session_net_expanded:
+                row = box.row()
+                row.label(text="Timeout (ms):")
+                row.prop(self, "connection_timeout", text="")
+                row = box.row()
+                row.label(text="Server ping (ms):")
+                row.prop(self, "ping_timeout", text="")
+
+            # REPLICATION
+            box = grid.box()
+            box.prop(
+                self, "conf_session_rep_expanded", text="Replication",
+                icon=get_expanded_icon(self.conf_session_rep_expanded), 
+                emboss=False)
+            if self.conf_session_rep_expanded:
+                row = box.row()
+                row.prop(self.sync_flags, "sync_render_settings")
+                row = box.row()
+                row.prop(self.sync_flags, "sync_active_camera")
+                row = box.row()
+                row.prop(self.sync_flags, "sync_during_editmode")
+                row = box.row()
+                if self.sync_flags.sync_during_editmode:
+                    warning = row.box()
+                    warning.label(text="Don't use this with heavy meshes !", icon='ERROR')
+                    row = box.row()
+                row.prop(self, "depsgraph_update_rate", text="Apply delay")
 
             # CACHE SETTINGS
             box = grid.box()
@@ -381,24 +534,18 @@ class SessionPrefs(bpy.types.AddonPreferences):
             if self.conf_session_cache_expanded:
                 box.row().prop(self, "cache_directory", text="Cache directory")
                 box.row().prop(self, "clear_memory_filecache", text="Clear memory filecache")
+                box.row().operator('session.clear_cache', text=f"Clear cache ({get_folder_size(self.cache_directory)})")
         
-            # INTERFACE SETTINGS
+            # LOGGING
             box = grid.box()
             box.prop(
-                self, "conf_session_ui_expanded", text="Interface",
-                icon=get_expanded_icon(self.conf_session_ui_expanded),
+                self, "conf_session_log_expanded", text="Logging",
+                icon=get_expanded_icon(self.conf_session_log_expanded), 
                 emboss=False)
-            if self.conf_session_ui_expanded:
-                box.row().prop(self, "panel_category", text="Panel category", expand=True)
+            if self.conf_session_log_expanded:
                 row = box.row()
-                row.label(text="Session widget:")
-
-                col = box.column(align=True)
-                col.prop(self, "presence_hud_scale", expand=True)
-                
-
-                col.prop(self, "presence_hud_hpos", expand=True)
-                col.prop(self, "presence_hud_vpos", expand=True)
+                row.label(text="Log level:")
+                row.prop(self, 'logging_level', text="")
 
         if self.category == 'UPDATE':
             from . import addon_updater_ops
@@ -407,18 +554,44 @@ class SessionPrefs(bpy.types.AddonPreferences):
     def generate_supported_types(self):
         self.supported_datablocks.clear()
 
-        bpy_protocol = io_bpy.get_data_translation_protocol()
+        bpy_protocol = bl_types.get_data_translation_protocol()
 
         # init the factory with supported types
-        for impl in bpy_protocol.implementations.values():
+        for dcc_type_id, impl in bpy_protocol.implementations.items():
             new_db = self.supported_datablocks.add()
 
-            new_db.name = impl.__name__
-            new_db.type_name = impl.__name__
+            new_db.name = dcc_type_id
+            new_db.type_name = dcc_type_id
             new_db.use_as_filter = True
             new_db.icon = impl.bl_icon
             new_db.bl_name = impl.bl_id
 
+    # Get a server preset through its name
+    def get_server_preset(self, name):
+        existing_preset = None
+
+        for server_preset in self.server_preset : 
+            if server_preset.server_name == name :
+                existing_preset = server_preset
+
+        return existing_preset
+
+    # Custom at launch server preset
+    def generate_default_presets(self): 
+        for preset_name, preset_data in DEFAULT_PRESETS.items():
+            existing_preset = self.get_server_preset(preset_name)
+            if existing_preset :
+                continue
+            new_server = self.server_preset.add()
+            new_server.name = str(uuid4())
+            new_server.server_name = preset_data.get('server_name')
+            new_server.ip = preset_data.get('ip')
+            new_server.port = preset_data.get('port')
+            new_server.use_server_password = preset_data.get('use_server_password',False)
+            new_server.server_password = preset_data.get('server_password',None)
+            new_server.use_admin_password = preset_data.get('use_admin_password',False)
+            new_server.admin_password = preset_data.get('admin_password',None)
+
 
 def client_list_callback(scene, context):
     from . import operators
@@ -475,6 +648,11 @@ class SessionProps(bpy.types.PropertyGroup):
         description='Enable user overlay ',
         default=True,
     )
+    presence_show_mode: bpy.props.BoolProperty(
+        name="Show users current mode",
+        description='Enable user mode overlay ',
+        default=False,
+    )
     presence_show_far_user: bpy.props.BoolProperty(
         name="Show users on different scenes",
         description="Show user on different scenes",
@@ -490,32 +668,33 @@ class SessionProps(bpy.types.PropertyGroup):
         description='Show only owned datablocks',
         default=True
     )
+    filter_name: bpy.props.StringProperty(
+        name="filter_name",
+        default="",
+        description='Node name filter',
+    )
     admin: bpy.props.BoolProperty(
         name="admin",
         description='Connect as admin',
         default=False
     )
-    password: bpy.props.StringProperty(
-        name="password",
-        default=random_string_digits(),
-        description='Session password',
-        subtype='PASSWORD'
-    )
     user_snap_running: bpy.props.BoolProperty(
         default=False
     )
     time_snap_running: bpy.props.BoolProperty(
         default=False
     )
+    is_host: bpy.props.BoolProperty(
+        default=False
+    )
 
-def get_preferences():
-    return bpy.context.preferences.addons[__package__].preferences
 
 classes = (
     SessionUser,
     SessionProps,
     ReplicationFlags,
     ReplicatedDatablock,
+    ServerPreset,
     SessionPrefs,
 )
 
@@ -528,9 +707,13 @@ def register():
 
     prefs = bpy.context.preferences.addons[__package__].preferences
     if len(prefs.supported_datablocks) == 0:
-        logging.debug('Generating io_bpy preferences')
+        logging.debug('Generating bl_types preferences')
         prefs.generate_supported_types()
     
+    # at launch server presets
+    prefs.generate_default_presets()
+        
+
 
 def unregister():
     from bpy.utils import unregister_class

multi_user/presence.py

@@ -94,15 +94,41 @@ def project_to_viewport(region: bpy.types.Region, rv3d: bpy.types.RegionView3D,
     return [target.x, target.y, target.z]
 
 
-def bbox_from_obj(obj: bpy.types.Object, radius: float) -> list:
+def bbox_from_obj(obj: bpy.types.Object, index: int = 1) -> list:
     """ Generate a bounding box for a given object by using its world matrix
 
         :param obj: target object
         :type obj: bpy.types.Object
-        :param radius: bounding box radius
-        :type radius: float
-        :return: list of 8 points [(x,y,z),...]
+        :param index: indice offset
+        :type index: int 
+        :return: list of 8 points [(x,y,z),...], list of 12 link between these points [(1,2),...]
     """
+    radius = 1.0 # Radius of the bounding box
+    index = 8*index
+    vertex_indices = (
+            (0+index, 1+index), (0+index, 2+index), (1+index, 3+index), (2+index, 3+index),
+            (4+index, 5+index), (4+index, 6+index), (5+index, 7+index), (6+index, 7+index),
+            (0+index, 4+index), (1+index, 5+index), (2+index, 6+index), (3+index, 7+index))
+
+    if obj.type == 'EMPTY':
+        radius = obj.empty_display_size
+    elif obj.type == 'LIGHT':
+        radius = obj.data.shadow_soft_size
+    elif obj.type == 'LIGHT_PROBE':
+        radius = obj.data.influence_distance
+    elif obj.type == 'CAMERA':
+        radius = obj.data.display_size
+    elif hasattr(obj, 'bound_box'):
+        vertex_indices = (
+            (0+index, 1+index), (1+index, 2+index),
+            (2+index, 3+index), (0+index, 3+index),
+            (4+index, 5+index), (5+index, 6+index),
+            (6+index, 7+index), (4+index, 7+index),
+            (0+index, 4+index), (1+index, 5+index),
+            (2+index, 6+index), (3+index, 7+index))
+        vertex_pos = get_bb_coords_from_obj(obj)
+        return vertex_pos, vertex_indices
+
     coords = [
         (-radius, -radius, -radius), (+radius, -radius, -radius),
         (-radius, +radius, -radius), (+radius, +radius, -radius),
@@ -112,9 +138,32 @@ def bbox_from_obj(obj: bpy.types.Object, radius: float) -> list:
     base = obj.matrix_world
     bbox_corners = [base @ mathutils.Vector(corner) for corner in coords]
 
-    return [(point.x, point.y, point.z)
-            for point in bbox_corners]
+    vertex_pos = [(point.x, point.y, point.z) for point in bbox_corners]
 
+    return vertex_pos, vertex_indices
+
+def bbox_from_instance_collection(ic: bpy.types.Object, index: int = 0) -> list:
+    """ Generate a bounding box for a given instance collection by using its objects
+
+        :param ic: target instance collection
+        :type ic: bpy.types.Object
+        :param index: indice offset
+        :type index: int
+        :return: list of 8*objs points [(x,y,z),...], tuple of 12*objs link between these points [(1,2),...]
+    """
+    vertex_pos = []
+    vertex_indices = ()
+
+    for obj_index, obj in enumerate(ic.instance_collection.objects):
+        vertex_pos_temp, vertex_indices_temp = bbox_from_obj(obj, index=index+obj_index)
+        vertex_pos += vertex_pos_temp
+        vertex_indices += vertex_indices_temp
+
+    bbox_corners = [ic.matrix_world @ mathutils.Vector(vertex) for vertex in vertex_pos]
+
+    vertex_pos = [(point.x, point.y, point.z) for point in bbox_corners]
+
+    return vertex_pos, vertex_indices
 
 def generate_user_camera() -> list:
     """ Generate a basic camera represention of the user point of view
@@ -203,6 +252,13 @@ class Widget(object):
         """
         return True
 
+    def configure_bgl(self):
+        bgl.glLineWidth(2.)
+        bgl.glEnable(bgl.GL_DEPTH_TEST)
+        bgl.glEnable(bgl.GL_BLEND)
+        bgl.glEnable(bgl.GL_LINE_SMOOTH)
+
+
     def draw(self):
         """How to draw the widget
         """
@@ -256,11 +312,6 @@ class UserFrustumWidget(Widget):
             {"pos": positions},
             indices=self.indices)
 
-        bgl.glLineWidth(2.)
-        bgl.glEnable(bgl.GL_DEPTH_TEST)
-        bgl.glEnable(bgl.GL_BLEND)
-        bgl.glEnable(bgl.GL_LINE_SMOOTH)
-
         shader.bind()
         shader.uniform_float("color", self.data.get('color'))
         batch.draw(shader)
@@ -272,6 +323,8 @@ class UserSelectionWidget(Widget):
             username):
         self.username = username
         self.settings = bpy.context.window_manager.session
+        self.current_selection_ids = []
+        self.current_selected_objects = []
 
     @property
     def data(self):
@@ -281,6 +334,15 @@ class UserSelectionWidget(Widget):
         else:
             return None
 
+    @property
+    def selected_objects(self):
+        user_selection = self.data.get('selected_objects')
+        if self.current_selection_ids != user_selection:
+            self.current_selected_objects = [find_from_attr("uuid", uid, bpy.data.objects) for uid in user_selection]
+            self.current_selection_ids = user_selection
+
+        return self.current_selected_objects
+
     def poll(self):
         if self.data is None:
             return False
@@ -295,48 +357,31 @@ class UserSelectionWidget(Widget):
             self.settings.enable_presence
 
     def draw(self):
-        user_selection = self.data.get('selected_objects')
-        for select_ob in user_selection:
-            ob = find_from_attr("uuid", select_ob, bpy.data.objects)
-            if not ob:
-                return
+        vertex_pos = []
+        vertex_ind = []
+        collection_offset = 0
+        for obj_index, obj in enumerate(self.selected_objects):
+            if obj is None:
+                continue
+            obj_index+=collection_offset
+            if hasattr(obj, 'instance_collection') and obj.instance_collection:
+                bbox_pos, bbox_ind = bbox_from_instance_collection(obj, index=obj_index)
+                collection_offset+=len(obj.instance_collection.objects)-1
+            else :
+                bbox_pos, bbox_ind = bbox_from_obj(obj, index=obj_index)
+            vertex_pos += bbox_pos
+            vertex_ind += bbox_ind
 
-            vertex_pos = bbox_from_obj(ob, 1.0)
-            vertex_indices = ((0, 1), (0, 2), (1, 3), (2, 3),
-                              (4, 5), (4, 6), (5, 7), (6, 7),
-                              (0, 4), (1, 5), (2, 6), (3, 7))
-
-            if ob.instance_collection:
-                for obj in ob.instance_collection.objects:
-                    if obj.type == 'MESH' and  hasattr(obj, 'bound_box'):
-                        vertex_pos = get_bb_coords_from_obj(obj, instance=ob)
-                        break
-            elif ob.type == 'EMPTY':
-                vertex_pos = bbox_from_obj(ob, ob.empty_display_size)
-            elif ob.type == 'LIGHT':
-                vertex_pos = bbox_from_obj(ob, ob.data.shadow_soft_size)
-            elif ob.type == 'LIGHT_PROBE':
-                vertex_pos = bbox_from_obj(ob, ob.data.influence_distance)
-            elif ob.type == 'CAMERA':
-                vertex_pos = bbox_from_obj(ob, ob.data.display_size)
-            elif hasattr(ob, 'bound_box'):
-                vertex_indices = (
-                    (0, 1), (1, 2), (2, 3), (0, 3),
-                    (4, 5), (5, 6), (6, 7), (4, 7),
-                    (0, 4), (1, 5), (2, 6), (3, 7))
-                vertex_pos = get_bb_coords_from_obj(ob)
-
-            shader = gpu.shader.from_builtin('3D_UNIFORM_COLOR')
-            batch = batch_for_shader(
-                shader,
-                'LINES',
-                {"pos": vertex_pos},
-                indices=vertex_indices)
-
-            shader.bind()
-            shader.uniform_float("color", self.data.get('color'))
-            batch.draw(shader)
+        shader = gpu.shader.from_builtin('3D_UNIFORM_COLOR')
+        batch = batch_for_shader(
+            shader,
+            'LINES',
+            {"pos": vertex_pos},
+            indices=vertex_ind)
 
+        shader.bind()
+        shader.uniform_float("color", self.data.get('color'))
+        batch.draw(shader)
 
 class UserNameWidget(Widget):
     draw_type = 'POST_PIXEL'
@@ -380,6 +425,62 @@ class UserNameWidget(Widget):
             blf.color(0, color[0], color[1], color[2], color[3])
             blf.draw(0,  self.username)
 
+class UserModeWidget(Widget):
+    draw_type = 'POST_PIXEL'
+    
+    def __init__(
+            self,
+            username):
+        self.username = username
+        self.settings = bpy.context.window_manager.session
+        self.preferences = get_preferences()
+
+    @property
+    def data(self):
+        user = session.online_users.get(self.username)
+        if user:
+            return user.get('metadata')
+        else:
+            return None
+
+    def poll(self):
+        if self.data is None:
+            return False
+
+        scene_current = self.data.get('scene_current')
+        mode_current = self.data.get('mode_current')
+        user_selection = self.data.get('selected_objects')
+
+        return (scene_current == bpy.context.scene.name or
+                mode_current == bpy.context.mode or
+                self.settings.presence_show_far_user) and \
+            user_selection and \
+            self.settings.presence_show_mode and \
+            self.settings.enable_presence
+
+    def draw(self):
+        user_selection = self.data.get('selected_objects')
+        area, region, rv3d = view3d_find()
+        viewport_coord = project_to_viewport(region, rv3d, (0, 0))
+            
+        obj = find_from_attr("uuid", user_selection[0], bpy.data.objects)
+        if not obj:
+            return
+        mode_current = self.data.get('mode_current')      
+        color = self.data.get('color')
+        origin_coord = project_to_screen(obj.location)
+
+        distance_viewport_object = math.sqrt((viewport_coord[0]-obj.location[0])**2+(viewport_coord[1]-obj.location[1])**2+(viewport_coord[2]-obj.location[2])**2)
+
+        if distance_viewport_object > self.preferences.presence_mode_distance :
+            return
+
+        if origin_coord :
+            blf.position(0, origin_coord[0]+8, origin_coord[1]-15, 0)
+            blf.size(0, 16, 72)
+            blf.color(0, color[0], color[1], color[2], color[3])
+            blf.draw(0,  mode_current)        
+
 
 class SessionStatusWidget(Widget):
     draw_type = 'POST_PIXEL'
@@ -462,6 +563,7 @@ class DrawFactory(object):
         try:
             for widget in self.widgets.values():
                 if widget.draw_type == 'POST_VIEW' and widget.poll():
+                    widget.configure_bgl()
                     widget.draw()
         except Exception as e:
             logging.error(
@@ -471,6 +573,7 @@ class DrawFactory(object):
         try:
             for widget in self.widgets.values():
                 if widget.draw_type == 'POST_PIXEL' and widget.poll():
+                    widget.configure_bgl()
                     widget.draw()
         except Exception as e:
             logging.error(
@@ -484,6 +587,7 @@ this.renderer = DrawFactory()
 def register():
     this.renderer.register_handlers()
     
+
     this.renderer.add_widget("session_status", SessionStatusWidget())
 
 

multi_user/shared_data.py

@@ -0,0 +1,48 @@
+# ##### BEGIN GPL LICENSE BLOCK #####
+#
+#   This program is free software: you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation, either version 3 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+#
+# ##### END GPL LICENSE BLOCK #####
+
+from replication.constants import STATE_INITIAL
+
+
+class SessionData():
+    """ A structure to share easily the current session data across the addon
+        modules.
+        This object will completely replace the Singleton lying in replication
+        interface module.  
+    """
+
+    def __init__(self):
+        self.repository = None  # The current repository
+        self.remote = None  # The active remote
+        self.server = None
+        self.applied_updates = []
+
+    @property
+    def state(self):
+        if self.remote is None:
+            return STATE_INITIAL
+        else:
+            return self.remote.connection_status
+
+    def clear(self):
+        self.remote = None
+        self.repository = None
+        self.server = None
+        self.applied_updates = []
+
+
+session = SessionData()

multi_user/timers.py

@@ -27,10 +27,12 @@ from replication.interface import session
 from replication import porcelain
 
 from . import operators, utils
-from .presence import (UserFrustumWidget, UserNameWidget, UserSelectionWidget,
+from .presence import (UserFrustumWidget, UserNameWidget, UserModeWidget, UserSelectionWidget,
                        generate_user_camera, get_view_matrix, refresh_3d_view,
                        refresh_sidebar_view, renderer)
 
+from . import shared_data 
+
 this = sys.modules[__name__]
 
 # Registered timers
@@ -39,7 +41,8 @@ this.registry = dict()
 def is_annotating(context: bpy.types.Context):
     """ Check if the annotate mode is enabled
     """
-    return bpy.context.workspace.tools.from_space_view3d_mode('OBJECT', create=False).idname == 'builtin.annotate'
+    active_tool = bpy.context.workspace.tools.from_space_view3d_mode('OBJECT', create=False)
+    return (active_tool and active_tool.idname == 'builtin.annotate')
 
 
 class Timer(object):
@@ -72,6 +75,7 @@ class Timer(object):
         except Exception as e:
             logging.error(e)
             self.unregister()
+            traceback.print_exc()
             session.disconnect(reason=f"Error during timer {self.id} execution")
         else:    
             if self.is_running:
@@ -99,7 +103,7 @@ class SessionBackupTimer(Timer):
 
 
     def execute(self):
-        session.save(self._filepath)
+        session.repository.dumps(self._filepath)
 
 class SessionListenTimer(Timer):
     def execute(self):
@@ -108,32 +112,76 @@ class SessionListenTimer(Timer):
 class ApplyTimer(Timer):
     def execute(self):
         if session and session.state == STATE_ACTIVE:
-            nodes = session.list()
-
-            for node in nodes:
-                node_ref = session.repository.get_node(node)
+            for node in session.repository.graph.keys():
+                node_ref = session.repository.graph.get(node)
 
                 if node_ref.state == FETCHED:
                     try:
+                        shared_data.session.applied_updates.append(node)
                         porcelain.apply(session.repository, node)
                     except Exception as e:
                         logging.error(f"Fail to apply {node_ref.uuid}")
                         traceback.print_exc()
                     else:
-                        if node_ref.bl_reload_parent:
-                            for parent in session.repository.get_parents(node):
+                        impl = session.repository.rdp.get_implementation(node_ref.instance)
+                        if impl.bl_reload_parent:
+                            for parent in session.repository.graph.get_parents(node):
                                 logging.debug("Refresh parent {node}")
                                 porcelain.apply(session.repository,
                                       parent.uuid,
                                       force=True)
+                        if hasattr(impl, 'bl_reload_child') and impl.bl_reload_child:
+                            for dep in node_ref.dependencies:
+                                porcelain.apply(session.repository,
+                                                dep,
+                                                force=True)
 
 
+class AnnotationUpdates(Timer):
+    def __init__(self, timeout=1):
+        self._annotating = False
+        self._settings = utils.get_preferences()
+
+        super().__init__(timeout)
+
+    def execute(self):
+        if session and session.state == STATE_ACTIVE:
+            ctx = bpy.context
+            annotation_gp = ctx.scene.grease_pencil
+
+            if annotation_gp and not annotation_gp.uuid:
+                ctx.scene.update_tag()
+
+            # if an annotation exist and is tracked
+            if annotation_gp and annotation_gp.uuid:
+                registered_gp = session.repository.graph.get(annotation_gp.uuid)
+                if is_annotating(bpy.context):
+                    # try to get the right on it
+                    if registered_gp.owner == RP_COMMON:
+                        self._annotating = True
+                        logging.debug(
+                            "Getting the right on the annotation GP")
+                        porcelain.lock(session.repository,
+                                        [registered_gp.uuid],
+                                        ignore_warnings=True,
+                                        affect_dependencies=False)
+
+                    if registered_gp.owner == self._settings.username:
+                        porcelain.commit(session.repository, annotation_gp.uuid)
+                        porcelain.push(session.repository, 'origin', annotation_gp.uuid)
+
+                elif self._annotating:
+                    porcelain.unlock(session.repository,
+                                    [registered_gp.uuid],
+                                    ignore_warnings=True,
+                                    affect_dependencies=False)
+                    self._annotating = False
+
 class DynamicRightSelectTimer(Timer):
     def __init__(self, timeout=.1):
         super().__init__(timeout)
-        self._last_selection = []
+        self._last_selection = set()
         self._user = None
-        self._annotating = False
 
     def execute(self):
         settings = utils.get_preferences()
@@ -144,88 +192,47 @@ class DynamicRightSelectTimer(Timer):
                 self._user = session.online_users.get(settings.username)
 
             if self._user:
-                ctx = bpy.context
-                annotation_gp = ctx.scene.grease_pencil
-
-                if annotation_gp and not annotation_gp.uuid:
-                    ctx.scene.update_tag()
-
-                # if an annotation exist and is tracked
-                if annotation_gp and annotation_gp.uuid:
-                    registered_gp = session.repository.get_node(annotation_gp.uuid)
-                    if is_annotating(bpy.context):
-                        # try to get the right on it
-                        if registered_gp.owner == RP_COMMON:
-                            self._annotating = True
-                            logging.debug(
-                                "Getting the right on the annotation GP")
-                            session.change_owner(
-                                registered_gp.uuid,
-                                settings.username,
-                                ignore_warnings=True,
-                                affect_dependencies=False)
-                        
-                        if registered_gp.owner == settings.username:
-                            gp_node = session.repository.get_node(annotation_gp.uuid)
-                            if gp_node.has_changed():
-                                porcelain.commit(session.repository, gp_node.uuid)
-                                session.push(gp_node.uuid, check_data=False)
-
-                    elif self._annotating:
-                        session.change_owner(
-                            registered_gp.uuid,
-                            RP_COMMON,
-                            ignore_warnings=True,
-                            affect_dependencies=False)
-
-                current_selection = utils.get_selected_objects(
+                current_selection = set(utils.get_selected_objects(
                     bpy.context.scene,
                     bpy.data.window_managers['WinMan'].windows[0].view_layer
-                )
+                ))
                 if current_selection != self._last_selection:
-                    obj_common = [
-                        o for o in self._last_selection if o not in current_selection]
-                    obj_ours = [
-                        o for o in current_selection if o not in self._last_selection]
+                    to_lock = list(current_selection.difference(self._last_selection))
+                    to_release = list(self._last_selection.difference(current_selection))
+                    instances_to_lock = list()
 
-                    # change old selection right to common
-                    for obj in obj_common:
-                        node = session.repository.get_node(obj)
+                    for node_id in to_lock:
+                        node = session.repository.graph.get(node_id)
+                        if node and hasattr(node,'data'):
+                            instance_mode = node.data.get('instance_type')
+                            if instance_mode and instance_mode == 'COLLECTION':
+                                to_lock.remove(node_id)
+                                instances_to_lock.append(node_id)
+                    if instances_to_lock:
+                        try:
+                            porcelain.lock(session.repository,
+                                            instances_to_lock,
+                                            ignore_warnings=True,
+                                            affect_dependencies=False)
+                        except NonAuthorizedOperationError as e:
+                            logging.warning(e)
 
-                        if node and (node.owner == settings.username or node.owner == RP_COMMON):
-                            recursive = True
-                            if node.data and 'instance_type' in node.data.keys():
-                                recursive = node.data['instance_type'] != 'COLLECTION'
-                            try:
-                                session.change_owner(
-                                    node.uuid,
-                                    RP_COMMON,
-                                    ignore_warnings=True,
-                                    affect_dependencies=recursive)
-                            except NonAuthorizedOperationError:
-                                logging.warning(
-                                    f"Not authorized to change {node} owner")
-
-                    # change new selection to our
-                    for obj in obj_ours:
-                        node = session.repository.get_node(obj)
-
-                        if node and node.owner == RP_COMMON:
-                            recursive = True
-                            if node.data and 'instance_type' in node.data.keys():
-                                recursive = node.data['instance_type'] != 'COLLECTION'
-
-                            try:
-                                session.change_owner(
-                                    node.uuid,
-                                    settings.username,
-                                    ignore_warnings=True,
-                                    affect_dependencies=recursive)
-                            except NonAuthorizedOperationError:
-                                logging.warning(
-                                    f"Not authorized to change {node} owner")
-                        else:
-                            return
+                    if to_release:
+                        try:
+                            porcelain.unlock(session.repository,
+                                            to_release,
+                                            ignore_warnings=True,
+                                            affect_dependencies=True)
+                        except NonAuthorizedOperationError as e:
+                            logging.warning(e)
+                    if to_lock:
+                        try:
+                            porcelain.lock(session.repository,
+                                            to_lock,
+                                            ignore_warnings=True,
+                                            affect_dependencies=True)
+                        except NonAuthorizedOperationError as e:
+                            logging.warning(e)
 
                     self._last_selection = current_selection
 
@@ -233,32 +240,29 @@ class DynamicRightSelectTimer(Timer):
                         'selected_objects': current_selection
                     }
 
-                    session.update_user_metadata(user_metadata)
+                    porcelain.update_user_metadata(session.repository, user_metadata)
                     logging.debug("Update selection")
 
                     # Fix deselection until right managment refactoring (with Roles concepts)
                     if len(current_selection) == 0 :
-                        owned_keys = session.list(
-                            filter_owner=settings.username)
-                        for key in owned_keys:
-                            node = session.repository.get_node(key)
+                        owned_keys = [k for k, v in session.repository.graph.items() if v.owner==settings.username]
+                        if owned_keys:
                             try:
-                                session.change_owner(
-                                    key,
-                                    RP_COMMON,
-                                    ignore_warnings=True,
-                                    affect_dependencies=recursive)
-                            except NonAuthorizedOperationError:
-                                logging.warning(
-                                    f"Not authorized to change {key} owner")
+                                porcelain.unlock(session.repository,
+                                                owned_keys,
+                                                ignore_warnings=True,
+                                                affect_dependencies=True)
+                            except NonAuthorizedOperationError as e:
+                                logging.warning(e)
 
+            # Objects selectability
             for obj in bpy.data.objects:
                 object_uuid = getattr(obj, 'uuid', None)
                 if object_uuid:
-                    node = session.repository.get_node(object_uuid)
-                    is_selectable = not node.owner in [settings.username, RP_COMMON]
+                    is_selectable = not session.repository.is_node_readonly(object_uuid)
                     if obj.hide_select != is_selectable:
                         obj.hide_select = is_selectable
+                        shared_data.session.applied_updates.append(object_uuid)
 
 
 class ClientUpdate(Timer):
@@ -272,7 +276,8 @@ class ClientUpdate(Timer):
 
         if session and renderer:
             if session.state in [STATE_ACTIVE, STATE_LOBBY]:
-                local_user = session.online_users.get(settings.username)
+                local_user = session.online_users.get(
+                    settings.username)
 
                 if not local_user:
                     return
@@ -307,20 +312,24 @@ class ClientUpdate(Timer):
                                   settings.client_color.b,
                                   1),
                         'frame_current': bpy.context.scene.frame_current,
-                        'scene_current': scene_current
+                        'scene_current': scene_current,
+                        'mode_current': bpy.context.mode
                     }
-                    session.update_user_metadata(metadata)
+                    porcelain.update_user_metadata(session.repository, metadata)
 
                 # Update client representation
                 # Update client current scene
                 elif scene_current != local_user_metadata['scene_current']:
                     local_user_metadata['scene_current'] = scene_current
-                    session.update_user_metadata(local_user_metadata)
+                    porcelain.update_user_metadata(session.repository, local_user_metadata)
                 elif 'view_corners' in local_user_metadata and current_view_corners != local_user_metadata['view_corners']:
                     local_user_metadata['view_corners'] = current_view_corners
                     local_user_metadata['view_matrix'] = get_view_matrix(
                     )
-                    session.update_user_metadata(local_user_metadata)
+                    porcelain.update_user_metadata(session.repository, local_user_metadata)
+                elif bpy.context.mode != local_user_metadata['mode_current']:
+                    local_user_metadata['mode_current'] = bpy.context.mode
+                    porcelain.update_user_metadata(session.repository, local_user_metadata)
 
 
 class SessionStatusUpdate(Timer):
@@ -348,6 +357,7 @@ class SessionUserSync(Timer):
                     renderer.remove_widget(f"{user.username}_cam")
                     renderer.remove_widget(f"{user.username}_select")
                     renderer.remove_widget(f"{user.username}_name")
+                    renderer.remove_widget(f"{user.username}_mode")
                     ui_users.remove(index)
                     break
 
@@ -363,6 +373,8 @@ class SessionUserSync(Timer):
                             f"{user}_select", UserSelectionWidget(user))
                         renderer.add_widget(
                             f"{user}_name", UserNameWidget(user))
+                        renderer.add_widget(
+                            f"{user}_mode", UserModeWidget(user))
 
 
 class MainThreadExecutor(Timer):

multi_user/ui.py

@@ -16,7 +16,9 @@
 # ##### END GPL LICENSE BLOCK #####
 
 
+from logging import log
 import bpy
+import bpy.utils.previews
 
 from .utils import get_preferences, get_expanded_icon, get_folder_size, get_state_str
 from replication.constants import (ADDED, ERROR, FETCHED,
@@ -71,155 +73,132 @@ class SESSION_PT_settings(bpy.types.Panel):
 
     def draw_header(self, context):
         layout = self.layout
+        settings = get_preferences()
+
+        from multi_user import icons
+        offline_icon = icons.icons_col["session_status_offline"]
+        waiting_icon = icons.icons_col["session_status_waiting"]
+        online_icon = icons.icons_col["session_status_online"]
+
         if session and session.state != STATE_INITIAL:
             cli_state = session.state
             state =  session.state
-            connection_icon = "KEYTYPE_MOVING_HOLD_VEC"
+            connection_icon = offline_icon
 
             if state == STATE_ACTIVE:
-                connection_icon = 'PROP_ON'
+                connection_icon = online_icon
             else:
-                connection_icon = 'PROP_CON'
+                connection_icon = waiting_icon
 
-            layout.label(text=f"Session - {get_state_str(cli_state)}", icon=connection_icon)
+            layout.label(text=f"{str(settings.server_name)} - {get_state_str(cli_state)}", icon_value=connection_icon.icon_id)
         else:
-            layout.label(text=f"Session - v{__version__}",icon="PROP_OFF")
+            layout.label(text=f"Multi-user - v{__version__}", icon="ANTIALIASED")
 
     def draw(self, context):
         layout = self.layout
-        row = layout.row()
         runtime_settings = context.window_manager.session
         settings = get_preferences()
 
-        if hasattr(context.window_manager, 'session'):
-            # STATE INITIAL
-            if not session \
-               or (session and session.state == STATE_INITIAL):
-                pass
-            else:
-                progress = session.state_progress           
-                row = layout.row()
+        if settings.is_first_launch:
+            # USER SETTINGS
+            row = layout.row()
+            row.label(text="1. Enter your username and color:")
+            row = layout.row()
+            split = row.split(factor=0.7, align=True)
+            split.prop(settings, "username", text="")
+            split.prop(settings, "client_color", text="")
 
-                current_state = session.state
-                info_msg = None
+            # DOC
+            row = layout.row()
+            row.label(text="2. New here ? See the doc:")
+            row = layout.row()
+            row.operator("doc.get", text="Documentation", icon="HELP")
         
-                if current_state in [STATE_ACTIVE]:
-                    row = row.grid_flow(row_major=True, columns=0, even_columns=True, even_rows=False, align=True)
-                    row.prop(settings.sync_flags, "sync_render_settings",text="",icon_only=True, icon='SCENE')
-                    row.prop(settings.sync_flags, "sync_during_editmode", text="",icon_only=True, icon='EDITMODE_HLT')
-                    row.prop(settings.sync_flags, "sync_active_camera", text="",icon_only=True, icon='OBJECT_DATAMODE')
+            # START
+            row = layout.row()
+            row.label(text="3: Start the Multi-user:")
+            row = layout.row()
+            row.scale_y = 2
+            row.operator("firstlaunch.verify", text="Continue")
         
-                row= layout.row()
+        if not settings.is_first_launch:
+            if hasattr(context.window_manager, 'session'):
+                # STATE INITIAL
+                if not session \
+                or (session and session.state == STATE_INITIAL):
+                    layout = self.layout
+                    settings = get_preferences()
+                    server_preset = settings.server_preset
+                    selected_server = context.window_manager.server_index if context.window_manager.server_index<=len(server_preset)-1 else 0
+                    active_server_name = server_preset[selected_server].name if len(server_preset)>=1 else ""
+                    is_server_selected = True if active_server_name else False
 
-                if current_state == STATE_LOBBY:
-                    info_msg = "Waiting for the session to start."
+                    # SERVER LIST
+                    row = layout.row()
+                    box = row.box()
+                    box.scale_y = 0.7
+                    split = box.split(factor=0.7)
+                    split.label(text="Server")
+                    split.label(text="Online")
 
-                if info_msg:
-                    info_box = row.box()
-                    info_box.row().label(text=info_msg,icon='INFO')
+                    col = row.column(align=True)
+                    col.operator("session.get_info", icon="FILE_REFRESH", text="")
 
-                # Progress bar
-                if current_state in [STATE_SYNCING, STATE_SRV_SYNC, STATE_WAITING]:
-                    info_box = row.box()
-                    info_box.row().label(text=printProgressBar(
-                        progress['current'],
-                        progress['total'],
-                        length=16
-                    ))
+                    row = layout.row()
+                    col = row.column(align=True)
+                    col.template_list("SESSION_UL_network",  "",  settings, "server_preset", context.window_manager, "server_index")
+                    col.separator()
+                    connectOp = col.row()
+                    connectOp.enabled =is_server_selected
+                    connectOp.operator("session.connect", text="Connect")
 
-                layout.row().operator("session.stop", icon='QUIT', text="Exit")
+                    col = row.column(align=True)
+                    col.operator("session.preset_server_add", icon="ADD", text="") # TODO : add conditions (need a name, etc..)
+                    row_visible = col.row(align=True)
+                    col_visible = row_visible.column(align=True)
+                    col_visible.enabled = is_server_selected
+                    col_visible.operator("session.preset_server_remove", icon="REMOVE", text="").target_server_name = active_server_name
+                    col_visible.separator()
+                    col_visible.operator("session.preset_server_edit", icon="GREASEPENCIL", text="").target_server_name = active_server_name
 
-class SESSION_PT_settings_network(bpy.types.Panel):
-    bl_idname = "MULTIUSER_SETTINGS_NETWORK_PT_panel"
-    bl_label = "Network"
-    bl_space_type = 'VIEW_3D'
-    bl_region_type = 'UI'
-    bl_parent_id = 'MULTIUSER_SETTINGS_PT_panel'
+                else:
+                    exitbutton = layout.row()
+                    exitbutton.scale_y = 1.5
+                    exitbutton.operator("session.stop", icon='QUIT', text="Disconnect")
 
-    @classmethod
-    def poll(cls, context):
-        return not session \
-            or (session and session.state == 0)
+                    progress = session.state_progress
+                    current_state = session.state
+                    info_msg = None
                     
-    def draw_header(self, context):
-        self.layout.label(text="", icon='URL')
+                    if current_state == STATE_LOBBY:
+                        usr = session.online_users.get(settings.username)
+                        row= layout.row()
+                        info_msg = "Waiting for the session to start."
+                        if usr and usr['admin']:
+                            info_msg = "Init the session to start."
+                            info_box = layout.row()
+                            info_box.label(text=info_msg,icon='INFO')
+                            init_row = layout.row()
+                            init_row.operator("session.init", icon='TOOL_SETTINGS', text="Init")
+                        else:
+                            info_box = layout.row()
+                            info_box.row().label(text=info_msg,icon='INFO')
 
-    def draw(self, context):
-        layout = self.layout
+                    # PROGRESS BAR
+                    if current_state in [STATE_SYNCING, STATE_SRV_SYNC, STATE_WAITING]:
+                        row= layout.row()
+                        row.label(text=f"Status: {get_state_str(current_state)}")
+                        row= layout.row()
+                        info_box = row.box()
+                        info_box.label(text=printProgressBar(
+                            progress['current'],
+                            progress['total'],
+                            length=16
+                        ))
 
-        runtime_settings = context.window_manager.session
-        settings = get_preferences()
-
-        # USER SETTINGS
-        row = layout.row()
-        row.prop(runtime_settings, "session_mode", expand=True)
-        row = layout.row()
-
-        box = row.box()
-
-        if runtime_settings.session_mode == 'HOST':
-            row = box.row()
-            row.label(text="Port:")
-            row.prop(settings, "port", text="")
-            row = box.row()
-            row.label(text="Start from:")
-            row.prop(settings, "init_method", text="")
-            row = box.row()
-            row.label(text="Admin password:")
-            row.prop(runtime_settings, "password", text="")
-            row = box.row()
-            row.operator("session.start", text="HOST").host = True
-        else:
-            row = box.row()
-            row.prop(settings, "ip", text="IP")
-            row = box.row()
-            row.label(text="Port:")
-            row.prop(settings, "port", text="")
-
-            row = box.row()
-            row.prop(runtime_settings, "admin", text='Connect as admin', icon='DISCLOSURE_TRI_DOWN' if runtime_settings.admin
-                     else 'DISCLOSURE_TRI_RIGHT')
-            if runtime_settings.admin:
-                row = box.row()
-                row.label(text="Password:")
-                row.prop(runtime_settings, "password", text="")
-            row = box.row()
-            row.operator("session.start", text="CONNECT").host = False
-
-
-class SESSION_PT_settings_user(bpy.types.Panel):
-    bl_idname = "MULTIUSER_SETTINGS_USER_PT_panel"
-    bl_label = "User info"
-    bl_space_type = 'VIEW_3D'
-    bl_region_type = 'UI'
-    bl_parent_id = 'MULTIUSER_SETTINGS_PT_panel'
-
-    @classmethod
-    def poll(cls, context):
-        return not session \
-            or (session and session.state == 0)
-    
-    def draw_header(self, context):
-        self.layout.label(text="", icon='USER')
-
-    def draw(self, context):
-        layout = self.layout
-
-        runtime_settings = context.window_manager.session
-        settings = get_preferences()
-
-        row = layout.row()
-        # USER SETTINGS
-        row.prop(settings, "username", text="name")
-
-        row = layout.row()
-        row.prop(settings, "client_color", text="color")
-        row = layout.row()
-
-
-class SESSION_PT_advanced_settings(bpy.types.Panel):
-    bl_idname = "MULTIUSER_SETTINGS_REPLICATION_PT_panel"
-    bl_label = "Advanced"
+class SESSION_PT_host_settings(bpy.types.Panel):
+    bl_idname = "MULTIUSER_SETTINGS_HOST_PT_panel"
+    bl_label = "Hosting"
     bl_space_type = 'VIEW_3D'
     bl_region_type = 'UI'
     bl_parent_id = 'MULTIUSER_SETTINGS_PT_panel'
@@ -227,19 +206,82 @@ class SESSION_PT_advanced_settings(bpy.types.Panel):
 
     @classmethod
     def poll(cls, context):
+        settings = get_preferences()
         return not session \
-            or (session and session.state == 0)
+            or (session and session.state == 0) \
+            and not settings.sidebar_advanced_shown \
+            and not settings.is_first_launch
+
+    def draw_header(self, context):
+        self.layout.label(text="", icon='NETWORK_DRIVE')
+        
+    def draw(self, context):
+        layout = self.layout
+        settings = get_preferences()
+
+        #HOST
+        host_selection = layout.row().box()
+        host_selection_row = host_selection.row()
+        host_selection_row.label(text="Init the session from:")
+        host_selection_row.prop(settings, "init_method", text="")
+        host_selection_row = host_selection.row()
+        host_selection_row.label(text="Port:")
+        host_selection_row.prop(settings, "host_port", text="")
+        host_selection_row = host_selection.row()
+        host_selection_col = host_selection_row.column()
+        host_selection_col.prop(settings, "host_use_server_password", text="Server password:")
+        host_selection_col = host_selection_row.column()
+        host_selection_col.enabled = True if settings.host_use_server_password else False
+        host_selection_col.prop(settings, "host_server_password", text="")
+        host_selection_row = host_selection.row()
+        host_selection_col = host_selection_row.column()
+        host_selection_col.prop(settings, "host_use_admin_password", text="Admin password:")
+        host_selection_col = host_selection_row.column()
+        host_selection_col.enabled = True if settings.host_use_admin_password else False
+        host_selection_col.prop(settings, "host_admin_password", text="")
+
+        host_selection = layout.column()
+        host_selection.operator("session.host", text="Host")
+
+
+class SESSION_PT_advanced_settings(bpy.types.Panel):
+    bl_idname = "MULTIUSER_SETTINGS_REPLICATION_PT_panel"
+    bl_label = "General Settings"
+    bl_space_type = 'VIEW_3D'
+    bl_region_type = 'UI'
+    bl_parent_id = 'MULTIUSER_SETTINGS_PT_panel'
+    bl_options = {'DEFAULT_CLOSED'}
+
+    @classmethod
+    def poll(cls, context):
+        settings = get_preferences()
+        return not session \
+            or (session and session.state == 0) \
+            and not settings.sidebar_advanced_shown \
+            and not settings.is_first_launch
 
     def draw_header(self, context):
         self.layout.label(text="", icon='PREFERENCES')
         
     def draw(self, context):
         layout = self.layout
-
-        runtime_settings = context.window_manager.session
         settings = get_preferences()
 
+        #ADVANCED USER INFO
+        uinfo_section = layout.row().box()
+        uinfo_section.prop(
+            settings,
+            "sidebar_advanced_uinfo_expanded",
+            text="User Info",
+            icon=get_expanded_icon(settings.sidebar_advanced_uinfo_expanded), 
+            emboss=False)
+        if settings.sidebar_advanced_uinfo_expanded:
+            uinfo_section_row = uinfo_section.row()
+            uinfo_section_split = uinfo_section_row.split(factor=0.7, align=True)
+            uinfo_section_split.prop(settings, "username", text="")
+            uinfo_section_split.prop(settings, "client_color", text="")
 
+        #ADVANCED NET
         net_section = layout.row().box()
         net_section.prop(
             settings,
@@ -247,12 +289,15 @@ class SESSION_PT_advanced_settings(bpy.types.Panel):
             text="Network",
             icon=get_expanded_icon(settings.sidebar_advanced_net_expanded), 
             emboss=False)
-        
         if settings.sidebar_advanced_net_expanded:
             net_section_row = net_section.row()
             net_section_row.label(text="Timeout (ms):")
             net_section_row.prop(settings, "connection_timeout", text="")
+            net_section_row = net_section.row()
+            net_section_row.label(text="Server ping (ms):")
+            net_section_row.prop(settings, "ping_timeout", text="")
 
+        #ADVANCED REPLICATION
         replication_section = layout.row().box()
         replication_section.prop(
             settings,
@@ -260,16 +305,12 @@ class SESSION_PT_advanced_settings(bpy.types.Panel):
             text="Replication",
             icon=get_expanded_icon(settings.sidebar_advanced_rep_expanded), 
             emboss=False)
-
         if settings.sidebar_advanced_rep_expanded:
-            replication_section_row = replication_section.row()
-
             replication_section_row = replication_section.row()
             replication_section_row.prop(settings.sync_flags, "sync_render_settings")
             replication_section_row = replication_section.row()
             replication_section_row.prop(settings.sync_flags, "sync_active_camera")
             replication_section_row = replication_section.row()
-
             replication_section_row.prop(settings.sync_flags, "sync_during_editmode")
             replication_section_row = replication_section.row()
             if settings.sync_flags.sync_during_editmode:
@@ -278,7 +319,7 @@ class SESSION_PT_advanced_settings(bpy.types.Panel):
                 replication_section_row = replication_section.row()
             replication_section_row.prop(settings, "depsgraph_update_rate", text="Apply delay")
 
-        
+        #ADVANCED CACHE
         cache_section = layout.row().box()
         cache_section.prop(
             settings,
@@ -296,6 +337,8 @@ class SESSION_PT_advanced_settings(bpy.types.Panel):
             cache_section_row.prop(settings, "clear_memory_filecache", text="")
             cache_section_row = cache_section.row()
             cache_section_row.operator('session.clear_cache', text=f"Clear cache ({get_folder_size(settings.cache_directory)})")
+        
+        #ADVANCED LOG
         log_section = layout.row().box()
         log_section.prop(
             settings,
@@ -303,11 +346,11 @@ class SESSION_PT_advanced_settings(bpy.types.Panel):
             text="Logging",
             icon=get_expanded_icon(settings.sidebar_advanced_log_expanded), 
             emboss=False)
-
         if settings.sidebar_advanced_log_expanded:
             log_section_row = log_section.row()
             log_section_row.label(text="Log level:")
             log_section_row.prop(settings, 'logging_level', text="")
+
 class SESSION_PT_user(bpy.types.Panel):
     bl_idname = "MULTIUSER_USER_PT_panel"
     bl_label = "Online users"
@@ -317,7 +360,8 @@ class SESSION_PT_user(bpy.types.Panel):
 
     @classmethod
     def poll(cls, context):
-        return session and session.state in [STATE_ACTIVE, STATE_LOBBY]
+        return session \
+            and session.state in [STATE_ACTIVE, STATE_LOBBY]
 
     def draw_header(self, context):
         self.layout.label(text="", icon='USER')
@@ -329,22 +373,23 @@ class SESSION_PT_user(bpy.types.Panel):
         settings = get_preferences()
         active_user = online_users[selected_user] if len(
             online_users)-1 >= selected_user else 0
-        runtime_settings = context.window_manager.session
 
-        # Create a simple row.
+        #USER LIST
         row = layout.row()
         box = row.box()
         split = box.split(factor=0.35)
         split.label(text="user")
-        split = split.split(factor=0.5)
-        split.label(text="location")
+        split = split.split(factor=0.3)
+        split.label(text="mode")
         split.label(text="frame")
+        split.label(text="location")
         split.label(text="ping")
 
         row = layout.row()
         layout.template_list("SESSION_UL_users",  "",  context.window_manager,
                              "online_users", context.window_manager,  "user_index")
 
+        #OPERATOR ON USER
         if active_user != 0 and active_user.username != settings.username:
             row = layout.row()
             user_operations = row.split()
@@ -376,6 +421,8 @@ class SESSION_UL_users(bpy.types.UIList):
         ping = '-'
         frame_current = '-'
         scene_current = '-'
+        mode_current = '-'
+        mode_icon = 'BLANK1'
         status_icon = 'BLANK1'
         if session:
             user = session.online_users.get(item.username)
@@ -385,59 +432,51 @@ class SESSION_UL_users(bpy.types.UIList):
                 if metadata and 'frame_current' in metadata:
                     frame_current = str(metadata.get('frame_current','-'))
                     scene_current = metadata.get('scene_current','-')
+                    mode_current = metadata.get('mode_current','-')
+                    if mode_current == "OBJECT" :
+                        mode_icon = "OBJECT_DATAMODE"
+                    elif mode_current == "EDIT_MESH" :
+                        mode_icon = "EDITMODE_HLT"
+                    elif mode_current == 'EDIT_CURVE':
+                        mode_icon = "CURVE_DATA"
+                    elif mode_current == 'EDIT_SURFACE':
+                        mode_icon = "SURFACE_DATA"
+                    elif mode_current == 'EDIT_TEXT':
+                        mode_icon = "FILE_FONT"
+                    elif mode_current == 'EDIT_ARMATURE':
+                        mode_icon = "ARMATURE_DATA"
+                    elif mode_current == 'EDIT_METABALL':
+                        mode_icon = "META_BALL"
+                    elif mode_current == 'EDIT_LATTICE':
+                        mode_icon = "LATTICE_DATA"
+                    elif mode_current == 'POSE':
+                        mode_icon = "POSE_HLT"
+                    elif mode_current == 'SCULPT':
+                        mode_icon = "SCULPTMODE_HLT"
+                    elif mode_current == 'PAINT_WEIGHT':
+                        mode_icon = "WPAINT_HLT"
+                    elif mode_current == 'PAINT_VERTEX':
+                        mode_icon = "VPAINT_HLT"
+                    elif mode_current == 'PAINT_TEXTURE':
+                        mode_icon = "TPAINT_HLT"
+                    elif mode_current == 'PARTICLE':
+                        mode_icon = "PARTICLES"
+                    elif mode_current == 'PAINT_GPENCIL' or mode_current =='EDIT_GPENCIL' or mode_current =='SCULPT_GPENCIL' or mode_current =='WEIGHT_GPENCIL' or mode_current =='VERTEX_GPENCIL':
+                        mode_icon = "GREASEPENCIL"
                 if user['admin']:
                     status_icon = 'FAKE_USER_ON'
         split = layout.split(factor=0.35)
         split.label(text=item.username, icon=status_icon)
-        split = split.split(factor=0.5)
-        split.label(text=scene_current)
+        split = split.split(factor=0.3)
+        split.label(icon=mode_icon)
         split.label(text=frame_current)
+        split.label(text=scene_current)
         split.label(text=ping)
 
-
-class SESSION_PT_presence(bpy.types.Panel):
-    bl_idname = "MULTIUSER_MODULE_PT_panel"
-    bl_label = "Presence overlay"
-    bl_space_type = 'VIEW_3D'
-    bl_region_type = 'UI'
-    bl_parent_id = 'MULTIUSER_SETTINGS_PT_panel'
-    bl_options = {'DEFAULT_CLOSED'}
-
-    @classmethod
-    def poll(cls, context):
-        return not session \
-            or (session and session.state in [STATE_INITIAL, STATE_ACTIVE])
-
-    def draw_header(self, context):
-        self.layout.prop(context.window_manager.session,
-                         "enable_presence", text="",icon='OVERLAY')
-
-    def draw(self, context):
-        layout = self.layout
-
-        settings = context.window_manager.session
-        pref = get_preferences()
-        layout.active = settings.enable_presence
-        col = layout.column()
-        col.prop(settings, "presence_show_session_status")
-        row = col.column()
-        row.active = settings.presence_show_session_status
-        row.prop(pref, "presence_hud_scale", expand=True)
-        row = col.column(align=True)
-        row.active = settings.presence_show_session_status
-        row.prop(pref, "presence_hud_hpos", expand=True)
-        row.prop(pref, "presence_hud_vpos", expand=True)
-        col.prop(settings, "presence_show_selected")
-        col.prop(settings, "presence_show_user")
-        row = layout.column()
-        row.active = settings.presence_show_user
-        row.prop(settings, "presence_show_far_user")
-
 def draw_property(context, parent, property_uuid, level=0):
     settings = get_preferences()
-    runtime_settings = context.window_manager.session
-    item = session.repository.get_node(property_uuid)
-
+    item = session.repository.graph.get(property_uuid)
+    type_id = item.data.get('type_id')
     area_msg = parent.row(align=True)
 
     if item.state == ERROR:
@@ -448,23 +487,25 @@ def draw_property(context, parent, property_uuid, level=0):
     line = area_msg.box()
 
     name = item.data['name'] if item.data else item.uuid
-
+    icon = settings.supported_datablocks[type_id].icon if type_id else 'ERROR'
     detail_item_box = line.row(align=True)
 
-    detail_item_box.label(text="",
-                          icon=settings.supported_datablocks[item.str_type].icon)
+    detail_item_box.label(text="", icon=icon)
     detail_item_box.label(text=f"{name}")
 
     # Operations
-
     have_right_to_modify = (item.owner == settings.username or \
         item.owner == RP_COMMON) and item.state != ERROR
 
+    from multi_user import icons
+    sync_status = icons.icons_col["repository_push"] #TODO: Link all icons to the right sync (push/merge/issue). For issue use "UNLINKED" for icon
+    # sync_status = icons.icons_col["repository_merge"]
+
     if have_right_to_modify:
         detail_item_box.operator(
             "session.commit",
             text="",
-            icon='TRIA_UP').target = item.uuid
+            icon_value=sync_status.icon_id).target = item.uuid
         detail_item_box.separator()
 
     if item.state in [FETCHED, UP]:
@@ -496,12 +537,40 @@ def draw_property(context, parent, property_uuid, level=0):
     else:
         detail_item_box.label(text="", icon="DECORATE_LOCKED")
 
+class SESSION_PT_sync(bpy.types.Panel):
+    bl_idname = "MULTIUSER_SYNC_PT_panel"
+    bl_label = "Synchronize"
+    bl_space_type = 'VIEW_3D'
+    bl_region_type = 'UI'
+    bl_parent_id = 'MULTIUSER_SETTINGS_PT_panel'
+    bl_options = {'DEFAULT_CLOSED'}
+
+    @classmethod
+    def poll(cls, context):
+        return session \
+            and session.state in [STATE_ACTIVE]
+
+    def draw_header(self, context):
+        self.layout.label(text="", icon='UV_SYNC_SELECT')
+
+    def draw(self, context):
+        layout = self.layout
+        settings = get_preferences()
+
+        row= layout.row()
+        row = row.grid_flow(row_major=True, columns=0, even_columns=True, even_rows=False, align=True)
+        row.prop(settings.sync_flags, "sync_render_settings",text="",icon_only=True, icon='SCENE')
+        row.prop(settings.sync_flags, "sync_during_editmode", text="",icon_only=True, icon='EDITMODE_HLT')
+        row.prop(settings.sync_flags, "sync_active_camera", text="",icon_only=True, icon='VIEW_CAMERA')
+
+
 class SESSION_PT_repository(bpy.types.Panel):
     bl_idname = "MULTIUSER_PROPERTIES_PT_panel"
     bl_label = "Repository"
     bl_space_type = 'VIEW_3D'
     bl_region_type = 'UI'
     bl_parent_id = 'MULTIUSER_SETTINGS_PT_panel'
+    bl_options = {'DEFAULT_CLOSED'}
 
     @classmethod
     def poll(cls, context):
@@ -514,8 +583,8 @@ class SESSION_PT_repository(bpy.types.Panel):
                 admin = usr['admin']
         return hasattr(context.window_manager, 'session') and \
             session and \
-            (session.state == STATE_ACTIVE or \
-            session.state == STATE_LOBBY and admin)
+            session.state == STATE_ACTIVE and \
+            not settings.sidebar_repository_shown
 
     def draw_header(self, context):
         self.layout.label(text="", icon='OUTLINER_OB_GROUP_INSTANCE')
@@ -529,55 +598,37 @@ class SESSION_PT_repository(bpy.types.Panel):
 
         usr = session.online_users.get(settings.username)
 
-        row = layout.row()
-
         if session.state == STATE_ACTIVE:
             if 'SessionBackupTimer' in registry:
+                row = layout.row()
                 row.alert = True
                 row.operator('session.cancel_autosave', icon="CANCEL")
                 row.alert = False
-            else:
-                row.operator('session.save', icon="FILE_TICK")
+            # else:
+            #     row.operator('session.save', icon="FILE_TICK")
 
-            flow = layout.grid_flow(
-                row_major=True,
-                columns=0,
-                even_columns=True,
-                even_rows=False,
-                align=True)
-
-            for item in settings.supported_datablocks:
-                col = flow.column(align=True)
-                col.prop(item, "use_as_filter", text="", icon=item.icon)
-
-            row = layout.row(align=True)
-            row.prop(runtime_settings, "filter_owned", text="Show only owned")
-
-            row = layout.row(align=True)
+            box = layout.box()
+            row = box.row()
+            row.prop(runtime_settings, "filter_owned", text="Only show owned data blocks", icon_only=True, icon="DECORATE_UNLOCKED")
+            row = box.row()
+            row.prop(runtime_settings, "filter_name", text="Filter")
+            row = box.row()
 
             # Properties
-            types_filter = [t.type_name for t in settings.supported_datablocks
-                            if t.use_as_filter]
+            owned_nodes = [k for k, v in  session.repository.graph.items() if v.owner==settings.username]
 
-            key_to_filter = session.list(
-                filter_owner=settings.username) if runtime_settings.filter_owned else session.list()
+            filtered_node = owned_nodes if runtime_settings.filter_owned else list(session.repository.graph.keys())
 
-            client_keys = [key for key in key_to_filter
-                           if session.repository.get_node(key).str_type
-                           in types_filter]
+            if runtime_settings.filter_name:
+                filtered_node = [n for n in filtered_node if runtime_settings.filter_name.lower() in session.repository.graph.get(n).data.get('name').lower()]
 
-            if client_keys:
+            if filtered_node:
                 col = layout.column(align=True)
-                for key in client_keys:
+                for key in filtered_node:
                     draw_property(context, col, key)
-
             else:
-                row.label(text="Empty")
+                layout.row().label(text="Empty")
 
-        elif session.state == STATE_LOBBY and usr and usr['admin']:
-            row.operator("session.init", icon='TOOL_SETTINGS', text="Init")
-        else:
-            row.label(text="Waiting to start")
 
 class VIEW3D_PT_overlay_session(bpy.types.Panel):
     bl_space_type = 'VIEW_3D'
@@ -592,37 +643,74 @@ class VIEW3D_PT_overlay_session(bpy.types.Panel):
     def draw(self, context):
         layout = self.layout
 
-        view = context.space_data
-        overlay = view.overlay
-        display_all = overlay.show_overlays
-
-        col = layout.column()
-
-        row = col.row(align=True)
         settings = context.window_manager.session
+        pref = get_preferences()
         layout.active = settings.enable_presence
-        col = layout.column()
-        col.prop(settings, "presence_show_session_status")
-        col.prop(settings, "presence_show_selected")
-        col.prop(settings, "presence_show_user")
         
-        row = layout.column()
-        row.active = settings.presence_show_user
-        row.prop(settings, "presence_show_far_user")
+        row = layout.row()
+        row.prop(settings, "enable_presence",text="Presence Overlay")
+
+        row = layout.row()
+        row.prop(settings, "presence_show_selected",text="Selected Objects")
+
+        row = layout.row(align=True)
+        row.prop(settings, "presence_show_user", text="Users camera")
+        row.prop(settings, "presence_show_mode", text="Users mode")
+
+        col = layout.column()
+        if settings.presence_show_mode or settings.presence_show_user:
+            row = col.column()
+            row.prop(pref, "presence_text_distance", expand=True)
+
+        row = col.column()
+        row.prop(settings, "presence_show_far_user", text="Users on different scenes")  
+
+        col.prop(settings, "presence_show_session_status")
+        if settings.presence_show_session_status :
+            split = layout.split()
+            text_pos = split.column(align=True)
+            text_pos.active = settings.presence_show_session_status
+            text_pos.prop(pref, "presence_hud_hpos", expand=True)
+            text_pos.prop(pref, "presence_hud_vpos", expand=True)
+            text_scale = split.column()
+            text_scale.active = settings.presence_show_session_status
+            text_scale.prop(pref, "presence_hud_scale", expand=True)   
+        
+
+class SESSION_UL_network(bpy.types.UIList):
+    def draw_item(self, context, layout, data, item, icon, active_data, active_propname, index, flt_flag):
+        settings = get_preferences()
+        server_name = '-'
+        server_status = 'BLANK1'
+        server_private = 'BLANK1'
+        
+        server_name = item.server_name
+
+        split = layout.split(factor=0.7)
+        if item.is_private:
+            server_private = 'LOCKED'
+            split.label(text=server_name, icon=server_private)
+        else:
+            split.label(text=server_name)
+
+        from multi_user import icons
+        server_status = icons.icons_col["server_offline"]
+        if item.is_online:
+            server_status = icons.icons_col["server_online"]
+        split.label(icon_value=server_status.icon_id)
 
 classes = (
     SESSION_UL_users,
+    SESSION_UL_network,
     SESSION_PT_settings,
-    SESSION_PT_settings_user,
-    SESSION_PT_settings_network,
-    SESSION_PT_presence,
+    SESSION_PT_host_settings,
     SESSION_PT_advanced_settings,
     SESSION_PT_user,
+    SESSION_PT_sync,
     SESSION_PT_repository,
     VIEW3D_PT_overlay_session,
 )
 
-
 register, unregister = bpy.utils.register_classes_factory(classes)
 
 if __name__ == "__main__":

multi_user/utils.py

@@ -38,6 +38,14 @@ from replication.constants import (STATE_ACTIVE, STATE_AUTH,
                                   STATE_LOBBY,
                                   CONNECTING)
 
+CLEARED_DATABLOCKS = ['actions', 'armatures', 'cache_files', 'cameras',
+                     'collections', 'curves', 'filepath', 'fonts',
+                     'grease_pencils', 'images', 'lattices', 'libraries',
+                     'lightprobes', 'lights', 'linestyles', 'masks',
+                     'materials', 'meshes', 'metaballs', 'movieclips',
+                     'node_groups', 'objects', 'paint_curves', 'particles',
+                     'scenes', 'shape_keys', 'sounds', 'speakers', 'texts',
+                     'textures', 'volumes', 'worlds']
 
 def find_from_attr(attr_name, attr_value, list):
     for item in list:
@@ -101,17 +109,25 @@ def get_state_str(state):
 
 
 def clean_scene():
-    for type_name in dir(bpy.data):
-        try:
-            type_collection = getattr(bpy.data, type_name)
-            for item in type_collection:
+    for type_name in CLEARED_DATABLOCKS:
+        sub_collection_to_avoid = [
+            bpy.data.linestyles.get('LineStyle'),
+            bpy.data.materials.get('Dots Stroke')
+        ]
+
+        type_collection = getattr(bpy.data, type_name)
+        items_to_remove = [i for i in type_collection if i not in sub_collection_to_avoid]
+        for item in items_to_remove:
+            try:
                 type_collection.remove(item)
-        except:
-            continue
+                logging.info(item.name)
+            except:
+                continue
 
     # Clear sequencer
     bpy.context.scene.sequence_editor_clear()
 
+
 def get_selected_objects(scene, active_view_layer):
     return [obj.uuid for obj in scene.objects if obj.select_get(view_layer=active_view_layer)]
 

scripts/docker_server/Dockerfile

@@ -1,7 +1,7 @@
 # Download base image debian jessie
 FROM python:slim
 
-ARG replication_version=0.1.13
+ARG replication_version=0.9.1
 ARG version=0.1.1
 
 # Infos
@@ -22,4 +22,4 @@ RUN pip install replication==$replication_version
 
 # Run the server with parameters
 ENTRYPOINT ["/bin/sh", "-c"]
-CMD  ["python3 -m replication.server -pwd ${password} -p ${port} -t ${timeout} -l ${log_level} -lf ${log_file}"]
+CMD  ["replication.serve -apwd ${password} -spwd '' -p ${port} -t ${timeout} -l ${log_level} -lf ${log_file}"]

scripts/get_replication_version.py

@@ -1,4 +1,4 @@
 import re
 
-init_py =  open("multi_user/__init__.py").read()
+init_py =  open("multi_user/libs/replication/replication/__init__.py").read()
 print(re.search("\d+\.\d+\.\d+\w\d+|\d+\.\d+\.\d+", init_py).group(0))

scripts/test_addon.py

@@ -13,7 +13,7 @@ def main():
     if len(sys.argv) > 2:
         blender_rev = sys.argv[2]
     else:
-        blender_rev = "2.92.0"
+        blender_rev = "2.93.0"
     
     try:
         exit_val = BAT.test_blender_addon(addon_path=addon, blender_revision=blender_rev)

tests/test_bl_types/test_action.py

@@ -5,9 +5,10 @@ from deepdiff import DeepDiff
 
 import bpy
 import random
-from multi_user.io_bpy.bl_action import BlAction
+from multi_user.bl_types.bl_action import BlAction
 
 INTERPOLATION = ['CONSTANT', 'LINEAR', 'BEZIER', 'SINE', 'QUAD', 'CUBIC', 'QUART', 'QUINT', 'EXPO', 'CIRC', 'BACK', 'BOUNCE', 'ELASTIC']
+FMODIFIERS = ['GENERATOR', 'FNGENERATOR', 'ENVELOPE', 'CYCLES', 'NOISE', 'LIMITS', 'STEPPED']
 
 # @pytest.mark.parametrize('blendname', ['test_action.blend'])
 def test_action(clear_blend):
@@ -22,17 +23,20 @@ def test_action(clear_blend):
         point.co[1] = random.randint(-10,10)
         point.interpolation = INTERPOLATION[random.randint(0, len(INTERPOLATION)-1)]
 
+    for mod_type in FMODIFIERS:
+        fcurve_sample.modifiers.new(mod_type)
+
     bpy.ops.mesh.primitive_plane_add()
     bpy.data.objects[0].animation_data_create()
     bpy.data.objects[0].animation_data.action = datablock
 
     # Test
     implementation = BlAction()
-    expected = implementation._dump(datablock)
+    expected = implementation.dump(datablock)
     bpy.data.actions.remove(datablock)
 
-    test = implementation._construct(expected)
-    implementation._load(expected, test)
-    result = implementation._dump(test)
+    test = implementation.construct(expected)
+    implementation.load(expected, test)
+    result = implementation.dump(test)
 
     assert not DeepDiff(expected, result)

tests/test_bl_types/test_armature.py

@@ -5,18 +5,18 @@ from deepdiff import DeepDiff
 
 import bpy
 import random
-from multi_user.io_bpy.bl_armature import BlArmature
+from multi_user.bl_types.bl_armature import BlArmature
 
 def test_armature(clear_blend):
     bpy.ops.object.armature_add()
     datablock = bpy.data.armatures[0]
     
     implementation = BlArmature()
-    expected = implementation._dump(datablock)
+    expected = implementation.dump(datablock)
     bpy.data.armatures.remove(datablock)
 
-    test = implementation._construct(expected)
-    implementation._load(expected, test)
-    result = implementation._dump(test)
+    test = implementation.construct(expected)
+    implementation.load(expected, test)
+    result = implementation.dump(test)
 
     assert not DeepDiff(expected, result)

tests/test_bl_types/test_camera.py

@@ -4,7 +4,7 @@ import pytest
 from deepdiff import DeepDiff
 
 import bpy
-from multi_user.io_bpy.bl_camera import BlCamera
+from multi_user.bl_types.bl_camera import BlCamera
 
 
 @pytest.mark.parametrize('camera_type', ['PANO','PERSP','ORTHO'])
@@ -15,11 +15,11 @@ def test_camera(clear_blend, camera_type):
     datablock.type = camera_type
 
     camera_dumper = BlCamera()
-    expected = camera_dumper._dump(datablock)
+    expected = camera_dumper.dump(datablock)
     bpy.data.cameras.remove(datablock)
 
-    test = camera_dumper._construct(expected)
-    camera_dumper._load(expected, test)
-    result = camera_dumper._dump(test)
+    test = camera_dumper.construct(expected)
+    camera_dumper.load(expected, test)
+    result = camera_dumper.dump(test)
 
     assert not DeepDiff(expected, result)

tests/test_bl_types/test_collection.py

@@ -5,7 +5,7 @@ from deepdiff import DeepDiff
 from uuid import uuid4
 import bpy
 import random
-from multi_user.io_bpy.bl_collection import BlCollection
+from multi_user.bl_types.bl_collection import BlCollection
 
 def test_collection(clear_blend):
     # Generate a collection with childrens and a cube
@@ -23,11 +23,11 @@ def test_collection(clear_blend):
 
     # Test
     implementation = BlCollection()
-    expected = implementation._dump(datablock)
+    expected = implementation.dump(datablock)
     bpy.data.collections.remove(datablock)
 
-    test = implementation._construct(expected)
-    implementation._load(expected, test)
-    result = implementation._dump(test)
+    test = implementation.construct(expected)
+    implementation.load(expected, test)
+    result = implementation.dump(test)
 
     assert not DeepDiff(expected, result)

tests/test_bl_types/test_curve.py

@@ -5,7 +5,7 @@ from deepdiff import DeepDiff
 
 import bpy
 import random
-from multi_user.io_bpy.bl_curve import BlCurve
+from multi_user.bl_types.bl_curve import BlCurve
 
 @pytest.mark.parametrize('curve_type', ['TEXT','BEZIER'])
 def test_curve(clear_blend, curve_type):
@@ -19,11 +19,11 @@ def test_curve(clear_blend, curve_type):
     datablock = bpy.data.curves[0]
 
     implementation = BlCurve()
-    expected = implementation._dump(datablock)
+    expected = implementation.dump(datablock)
     bpy.data.curves.remove(datablock)
 
-    test = implementation._construct(expected)
-    implementation._load(expected, test)
-    result = implementation._dump(test)
+    test = implementation.construct(expected)
+    implementation.load(expected, test)
+    result = implementation.dump(test)
 
     assert not DeepDiff(expected, result)

tests/test_bl_types/test_gpencil.py

@@ -4,7 +4,7 @@ import pytest
 from deepdiff import DeepDiff
 
 import bpy
-from multi_user.io_bpy.bl_gpencil import BlGpencil
+from multi_user.bl_types.bl_gpencil import BlGpencil
 
 
 def test_gpencil(clear_blend):
@@ -13,11 +13,11 @@ def test_gpencil(clear_blend):
     datablock = bpy.data.grease_pencils[0]
 
     implementation = BlGpencil()
-    expected = implementation._dump(datablock)
+    expected = implementation.dump(datablock)
     bpy.data.grease_pencils.remove(datablock)
 
-    test = implementation._construct(expected)
-    implementation._load(expected, test)
-    result = implementation._dump(test)
+    test = implementation.construct(expected)
+    implementation.load(expected, test)
+    result = implementation.dump(test)
 
     assert not DeepDiff(expected, result)

tests/test_bl_types/test_lattice.py

@@ -4,7 +4,7 @@ import pytest
 from deepdiff import DeepDiff
 
 import bpy
-from multi_user.io_bpy.bl_lattice import BlLattice
+from multi_user.bl_types.bl_lattice import BlLattice
 
 
 def test_lattice(clear_blend):
@@ -13,11 +13,11 @@ def test_lattice(clear_blend):
     datablock = bpy.data.lattices[0]
 
     implementation = BlLattice()
-    expected = implementation._dump(datablock)
+    expected = implementation.dump(datablock)
     bpy.data.lattices.remove(datablock)
 
-    test = implementation._construct(expected)
-    implementation._load(expected, test)
-    result = implementation._dump(test)
+    test = implementation.construct(expected)
+    implementation.load(expected, test)
+    result = implementation.dump(test)
 
     assert not DeepDiff(expected, result)

tests/test_bl_types/test_lightprobes.py

@@ -4,21 +4,21 @@ import pytest
 from deepdiff import DeepDiff
 
 import bpy
-from multi_user.io_bpy.bl_lightprobe import BlLightprobe
+from multi_user.bl_types.bl_lightprobe import BlLightprobe
 
 
-@pytest.mark.skipif(bpy.app.version[1] < 83, reason="requires blender 2.83 or higher")
+@pytest.mark.skipif(bpy.app.version < (2,83,0), reason="requires blender 2.83 or higher")
 @pytest.mark.parametrize('lightprobe_type', ['PLANAR','GRID','CUBEMAP'])
 def test_lightprobes(clear_blend, lightprobe_type):
     bpy.ops.object.lightprobe_add(type=lightprobe_type)
 
     blender_light = bpy.data.lightprobes[0]
     lightprobe_dumper = BlLightprobe()
-    expected = lightprobe_dumper._dump(blender_light)
+    expected = lightprobe_dumper.dump(blender_light)
     bpy.data.lightprobes.remove(blender_light)
 
-    test = lightprobe_dumper._construct(expected)
-    lightprobe_dumper._load(expected, test)
-    result = lightprobe_dumper._dump(test)
+    test = lightprobe_dumper.construct(expected)
+    lightprobe_dumper.load(expected, test)
+    result = lightprobe_dumper.dump(test)
 
     assert not DeepDiff(expected, result)

tests/test_bl_types/test_lights.py

@@ -4,7 +4,7 @@ import pytest
 from deepdiff import DeepDiff
 
 import bpy
-from multi_user.io_bpy.bl_light import BlLight
+from multi_user.bl_types.bl_light import BlLight
 
 
 @pytest.mark.parametrize('light_type', ['SPOT','SUN','POINT','AREA'])
@@ -13,11 +13,11 @@ def test_light(clear_blend, light_type):
 
     blender_light = bpy.data.lights[0]
     light_dumper = BlLight()
-    expected = light_dumper._dump(blender_light)
+    expected = light_dumper.dump(blender_light)
     bpy.data.lights.remove(blender_light)
 
-    test = light_dumper._construct(expected)
-    light_dumper._load(expected, test)
-    result = light_dumper._dump(test)
+    test = light_dumper.construct(expected)
+    light_dumper.load(expected, test)
+    result = light_dumper.dump(test)
 
     assert not DeepDiff(expected, result)

tests/test_bl_types/test_material.py

@@ -4,7 +4,7 @@ import pytest
 from deepdiff import DeepDiff
 
 import bpy
-from multi_user.io_bpy.bl_material import BlMaterial
+from multi_user.bl_types.bl_material import BlMaterial
 
 
 def test_material_nodes(clear_blend):
@@ -17,12 +17,12 @@ def test_material_nodes(clear_blend):
         datablock.node_tree.nodes.new(ntype) 
 
     implementation = BlMaterial()
-    expected = implementation._dump(datablock)
+    expected = implementation.dump(datablock)
     bpy.data.materials.remove(datablock)
 
-    test = implementation._construct(expected)
-    implementation._load(expected, test)
-    result = implementation._dump(test)
+    test = implementation.construct(expected)
+    implementation.load(expected, test)
+    result = implementation.dump(test)
 
     assert not DeepDiff(expected, result)
 
@@ -32,11 +32,11 @@ def test_material_gpencil(clear_blend):
     bpy.data.materials.create_gpencil_data(datablock)
 
     implementation = BlMaterial()
-    expected = implementation._dump(datablock)
+    expected = implementation.dump(datablock)
     bpy.data.materials.remove(datablock)
 
-    test = implementation._construct(expected)
-    implementation._load(expected, test)
-    result = implementation._dump(test)
+    test = implementation.construct(expected)
+    implementation.load(expected, test)
+    result = implementation.dump(test)
 
     assert not DeepDiff(expected, result)

tests/test_bl_types/test_mesh.py

@@ -5,7 +5,7 @@ from deepdiff import DeepDiff
 
 import bpy
 import random
-from multi_user.io_bpy.bl_mesh import BlMesh
+from multi_user.bl_types.bl_mesh import BlMesh
 
 @pytest.mark.parametrize('mesh_type', ['EMPTY','FILLED'])
 def test_mesh(clear_blend, mesh_type):
@@ -18,11 +18,11 @@ def test_mesh(clear_blend, mesh_type):
     
     # Test
     implementation = BlMesh()
-    expected = implementation._dump(datablock)
+    expected = implementation.dump(datablock)
     bpy.data.meshes.remove(datablock)
 
-    test = implementation._construct(expected)
-    implementation._load(expected, test)
-    result = implementation._dump(test)
+    test = implementation.construct(expected)
+    implementation.load(expected, test)
+    result = implementation.dump(test)
 
     assert not DeepDiff(expected, result)

tests/test_bl_types/test_metaball.py

@@ -4,7 +4,7 @@ import pytest
 from deepdiff import DeepDiff
 
 import bpy
-from multi_user.io_bpy.bl_metaball import BlMetaball
+from multi_user.bl_types.bl_metaball import BlMetaball
 
 
 @pytest.mark.parametrize('metaballs_type', ['PLANE','CAPSULE','BALL','ELLIPSOID','CUBE'])
@@ -13,11 +13,11 @@ def test_metaball(clear_blend, metaballs_type):
 
     datablock = bpy.data.metaballs[0]
     dumper = BlMetaball()
-    expected = dumper._dump(datablock)
+    expected = dumper.dump(datablock)
     bpy.data.metaballs.remove(datablock)
 
-    test = dumper._construct(expected)
-    dumper._load(expected, test)
-    result = dumper._dump(test)
+    test = dumper.construct(expected)
+    dumper.load(expected, test)
+    result = dumper.dump(test)
 
     assert not DeepDiff(expected, result)

tests/test_bl_types/test_object.py

@@ -5,7 +5,7 @@ from deepdiff import DeepDiff
 
 import bpy
 import random
-from multi_user.io_bpy.bl_object import BlObject
+from multi_user.bl_types.bl_object import BlObject
 
 # Removed 'BUILD', 'SOFT_BODY' modifier because the seed doesn't seems to be
 # correctly initialized (#TODO: report the bug)
@@ -65,11 +65,11 @@ def test_object(clear_blend):
     datablock.shape_key_add(name='shape2')
 
     implementation = BlObject()
-    expected = implementation._dump(datablock)
+    expected = implementation.dump(datablock)
     bpy.data.objects.remove(datablock)
 
-    test = implementation._construct(expected)
-    implementation._load(expected, test)
-    result = implementation._dump(test)
+    test = implementation.construct(expected)
+    implementation.load(expected, test)
+    result = implementation.dump(test)
     print(DeepDiff(expected, result))
     assert not DeepDiff(expected, result)

tests/test_bl_types/test_scene.py

@@ -5,21 +5,23 @@ from deepdiff import DeepDiff
 
 import bpy
 import random
-from multi_user.io_bpy.bl_scene import BlScene
+from multi_user.bl_types.bl_scene import BlScene
 from multi_user.utils import get_preferences
 
 def test_scene(clear_blend):
     get_preferences().sync_flags.sync_render_settings = True
 
     datablock = bpy.data.scenes.new("toto")
+    datablock.timeline_markers.new('toto', frame=10)
+    datablock.timeline_markers.new('tata', frame=1)
     datablock.view_settings.use_curve_mapping = True
     # Test
     implementation = BlScene()
-    expected = implementation._dump(datablock)
+    expected = implementation.dump(datablock)
     bpy.data.scenes.remove(datablock)
 
-    test = implementation._construct(expected)
-    implementation._load(expected, test)
-    result = implementation._dump(test)
+    test = implementation.construct(expected)
+    implementation.load(expected, test)
+    result = implementation.dump(test)
 
     assert not DeepDiff(expected, result)

tests/test_bl_types/test_speaker.py

@@ -5,18 +5,18 @@ from deepdiff import DeepDiff
 
 import bpy
 import random
-from multi_user.io_bpy.bl_speaker import BlSpeaker
+from multi_user.bl_types.bl_speaker import BlSpeaker
 
 def test_speaker(clear_blend):
     bpy.ops.object.speaker_add()
     datablock = bpy.data.speakers[0]
     
     implementation = BlSpeaker()
-    expected = implementation._dump(datablock)
+    expected = implementation.dump(datablock)
     bpy.data.speakers.remove(datablock)
 
-    test = implementation._construct(expected)
-    implementation._load(expected, test)
-    result = implementation._dump(test)
+    test = implementation.construct(expected)
+    implementation.load(expected, test)
+    result = implementation.dump(test)
 
     assert not DeepDiff(expected, result)

tests/test_bl_types/test_texture.py

@@ -5,7 +5,7 @@ from deepdiff import DeepDiff
 
 import bpy
 import random
-from multi_user.io_bpy.bl_texture import BlTexture
+from multi_user.bl_types.bl_texture import BlTexture
 
 TEXTURE_TYPES = ['NONE', 'BLEND', 'CLOUDS', 'DISTORTED_NOISE', 'IMAGE', 'MAGIC', 'MARBLE', 'MUSGRAVE', 'NOISE', 'STUCCI', 'VORONOI', 'WOOD']
 
@@ -14,11 +14,11 @@ def test_texture(clear_blend, texture_type):
     datablock = bpy.data.textures.new('test', texture_type)
 
     implementation = BlTexture()
-    expected = implementation._dump(datablock)
+    expected = implementation.dump(datablock)
     bpy.data.textures.remove(datablock)
 
-    test = implementation._construct(expected)
-    implementation._load(expected, test)
-    result = implementation._dump(test)
+    test = implementation.construct(expected)
+    implementation.load(expected, test)
+    result = implementation.dump(test)
 
     assert not DeepDiff(expected, result)

tests/test_bl_types/test_volume.py

@@ -5,17 +5,17 @@ from deepdiff import DeepDiff
 
 import bpy
 import random
-from multi_user.io_bpy.bl_volume import BlVolume
+from multi_user.bl_types.bl_volume import BlVolume
 
 def test_volume(clear_blend):
     datablock = bpy.data.volumes.new("Test")
 
     implementation = BlVolume()
-    expected = implementation._dump(datablock)
+    expected = implementation.dump(datablock)
     bpy.data.volumes.remove(datablock)
 
-    test = implementation._construct(expected)
-    implementation._load(expected, test)
-    result = implementation._dump(test)
+    test = implementation.construct(expected)
+    implementation.load(expected, test)
+    result = implementation.dump(test)
 
     assert not DeepDiff(expected, result)

tests/test_bl_types/test_world.py

@@ -5,18 +5,18 @@ from deepdiff import DeepDiff
 
 import bpy
 import random
-from multi_user.io_bpy.bl_world import BlWorld
+from multi_user.bl_types.bl_world import BlWorld
 
 def test_world(clear_blend):
     datablock = bpy.data.worlds.new('test')
     datablock.use_nodes = True
     
     implementation = BlWorld()
-    expected = implementation._dump(datablock)
+    expected = implementation.dump(datablock)
     bpy.data.worlds.remove(datablock)
 
-    test = implementation._construct(expected)
-    implementation._load(expected, test)
-    result = implementation._dump(test)
+    test = implementation.construct(expected)
+    implementation.load(expected, test)
+    result = implementation.dump(test)
 
     assert not DeepDiff(expected, result)

tests/test_operators.py

@@ -1,20 +0,0 @@
-import os
-
-import pytest
-from deepdiff import DeepDiff
-
-import bpy
-import random
-
-
-def test_start_session():
-    result = bpy.ops.session.start()
-
-
-    assert 'FINISHED' in result
-
-def test_stop_session():
-
-    result = bpy.ops.session.stop()
-
-    assert 'FINISHED' in result