mirror of
https://github.com/DigvijaysinhGohil/Godot-Shader-Lib.git
synced 2025-09-19 11:56:01 +08:00
57 lines
1.5 KiB
GDScript3
57 lines
1.5 KiB
GDScript3
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@tool
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class_name VisualShaderNodeUVParallaxMapping extends VisualShaderNodeCustom
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func _init() -> void:
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_set_input_port_default_value(1, 1.0)
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func _get_name() -> String:
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return "ParallaxMapping"
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func _get_category() -> String:
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return "UV"
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func _get_description() -> String:
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return "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."
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func _get_return_icon_type() -> VisualShaderNode.PortType:
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return PORT_TYPE_VECTOR_2D
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func _get_input_port_count() -> int:
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return 2
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func _get_input_port_name(port: int) -> String:
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match port:
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0:
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return "heightMap"
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1:
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return "amplitude"
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return ""
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func _get_input_port_type(port: int) -> VisualShaderNode.PortType:
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match port:
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0:
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return PORT_TYPE_SAMPLER
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_:
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return PORT_TYPE_SCALAR
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func _get_output_port_count() -> int:
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return 1
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func _get_output_port_name(port: int) -> String:
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return "uv"
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func _get_output_port_type(port: int) -> VisualShaderNode.PortType:
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return PORT_TYPE_VECTOR_2D
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func _get_global_code(mode: Shader.Mode) -> String:
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var code: String = preload("ParallaxMappingUV.gdshaderinc").code
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return code
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func _get_code(input_vars: Array[String], output_vars: Array[String], mode: Shader.Mode, type: VisualShader.Type) -> String:
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var height_map: String = input_vars[0]
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var amplitude: String = input_vars[1]
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if !height_map:
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return output_vars[0] + " = UV;"
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return output_vars[0] + " = parallax_mapping_uv(%s, %s, CAMERA_DIRECTION_WORLD, INV_VIEW_MATRIX, UV);" % [height_map, amplitude];
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