mirror of
https://github.com/DigvijaysinhGohil/Godot-Shader-Lib.git
synced 2025-01-07 01:43:35 +08:00
79 lines
1.7 KiB
GDScript
79 lines
1.7 KiB
GDScript
@tool
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class_name VisualShaderNodeUVTwirl extends ShaderLib
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func _get_name() -> String:
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return "Twirl"
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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 "Applies a twirl warping effect similar to a black hole to the value of input UV."
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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 4
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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 "uv"
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1:
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return "center"
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2:
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return "strength"
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3:
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return "offset"
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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, 1, 3:
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return PORT_TYPE_VECTOR_2D
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2:
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return PORT_TYPE_SCALAR
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return PORT_TYPE_SCALAR
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func _get_input_port_default_value(port: int) -> Variant:
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match port:
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1:
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return Vector2(0.5, 0.5)
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2:
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return 10.0
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3:
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return Vector2(0.0, 0.0)
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_:
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return null
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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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return "#include \"res://addons/ShaderLib_%s/UV/UV.gdshaderinc\"" % [version]
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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 uv: String
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match mode:
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0, 1:
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uv = "UV"
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_:
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uv = "vec2(0.0)"
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if input_vars[0]:
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uv = input_vars[0]
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var center: String = input_vars[1]
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var strength: String = input_vars[2]
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var offset: String = input_vars[3]
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return output_vars[0] + " = twirl_uv(%s, %s, %s, %s);" % [uv, center, strength, offset]
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