From d3a263f034d687027bb18df0f4ce80c6a7df3936 Mon Sep 17 00:00:00 2001
From: Digvijaysinh Gohil <zdigv96@gmail.com>
Date: Sun, 24 Dec 2023 20:54:36 +0530
Subject: [PATCH] Documentation for Parallax mapping node added

---
 README.md                                | 17 +++++++++++++++++
 addons/ShaderLib/UV/ParallaxMappingUV.gd |  7 +++++++
 2 files changed, 24 insertions(+)

diff --git a/README.md b/README.md
index c599aec..d2cda14 100644
--- a/README.md
+++ b/README.md
@@ -307,6 +307,23 @@ This node can be used to create a texture animation functionality, commonly used
 |end frame|int|none|End tile index texture sheet|
 |anim speed|float|none|Animation speed|
 
+**Outputs**
+|Name|Type|Binding|Description|
+|---|---|---|---|
+|uv|vec2|None|Output UV value|
+___
+</details>
+<details>
+<summary><h3>Parallax mapping node</h3></summary>
+The Parallax Mapping node lets you create a parallax effect that displaces a Material's UVs to create the illusion of depth inside a Material.<br><br><i>This node is only available in shader modes SPATIAL and CANVAS ITEM.</i>
+<hr>
+
+**Inputs**
+|Name|Type|Binding|Description|
+|---|---|---|---|
+|height map|sampler2D|none|Height map texture|
+|amplitude|float|none|amplitude or depth of the effect|
+
 **Outputs**
 |Name|Type|Binding|Description|
 |---|---|---|---|
diff --git a/addons/ShaderLib/UV/ParallaxMappingUV.gd b/addons/ShaderLib/UV/ParallaxMappingUV.gd
index 8d7f956..5ac67f8 100644
--- a/addons/ShaderLib/UV/ParallaxMappingUV.gd
+++ b/addons/ShaderLib/UV/ParallaxMappingUV.gd
@@ -43,6 +43,13 @@ func _get_output_port_name(port: int) -> String:
 func _get_output_port_type(port: int) -> VisualShaderNode.PortType:
 	return PORT_TYPE_VECTOR_2D
 
+func _is_available(mode: Shader.Mode, type: VisualShader.Type) -> bool:
+	match mode:
+		0, 1:
+			return true
+		_:
+			return false
+
 func _get_global_code(mode: Shader.Mode) -> String:
 	var code: String = preload("ParallaxMappingUV.gdshaderinc").code
 	return code