Gyroid noise node added

addons/ShaderLib/Procedural/Noise/GyroidNoise.gd

@@ -0,0 +1,79 @@
+@tool
+class_name VisualShaderNodeProceduralGyroidNoise extends VisualShaderNodeCustom
+
+func _init() -> void:
+	output_port_for_preview = 0
+
+func _get_name() -> String:
+	return "GyroidNoise"
+
+func _get_category() -> String:
+	return "Procedural/Noise"
+
+func _get_description() -> String:
+	return "Generates a gyroid noise based on input UV."
+
+func _get_return_icon_type() -> PortType:
+	return PORT_TYPE_SCALAR
+
+func _get_input_port_count() -> int:
+	return 5
+
+func _get_input_port_name(port: int) -> String:
+	match port:
+		0:
+			return "uv"
+		1:
+			return "scale"
+		2:
+			return "ratio"
+		3:
+			return "height"
+		_:
+			return "thickness"
+
+func _get_input_port_type(port: int) -> PortType:
+	match port:
+		0, 2:
+			return PORT_TYPE_VECTOR_2D
+		_:
+			return PORT_TYPE_SCALAR
+
+func _get_input_port_default_value(port: int) -> Variant:
+	match port:
+		1:
+			return 2.0
+		2:
+			return Vector2(1, 1)
+		3:
+			return 0.5
+		4:
+			return 0.0
+		_:
+			return null
+
+func _get_output_port_count() -> int:
+	return 1
+
+func _get_output_port_name(port: int) -> String:
+	return "output"
+
+func _get_output_port_type(port: int) -> PortType:
+	return PORT_TYPE_SCALAR
+
+func _get_global_code(mode: Shader.Mode) -> String:
+	var code: String = preload("GyroidNoise.gdshaderinc").code
+	return code
+
+func _get_code(input_vars: Array[String], output_vars: Array[String], mode: Shader.Mode, type: VisualShader.Type) -> String:
+	var uv: String = "UV"
+
+	if input_vars[0]:
+		uv = input_vars[0]
+
+	var scale: String = input_vars[1]
+	var ratio: String = input_vars[2]
+	var height: String = input_vars[3]
+	var thickness: String = input_vars[4]
+
+	return output_vars[0] + " = gyroid_noise(%s, %s, %s, %s, %s);" % [uv, scale, ratio, height, thickness]

addons/ShaderLib/Procedural/Noise/GyroidNoise.gdshaderinc

@@ -0,0 +1,7 @@
+float gyroid_noise(vec2 uv, float scale, vec2 ratio, float height, float thickness) {
+	scale *= 10.;
+	thickness = clamp(thickness, 0., 1.);
+	vec3 vector = vec3(uv, height);
+	vector *= scale;
+	return abs(dot(sin(vector * ratio.x), cos(vector.zxy * ratio.y))) - thickness;
+}

documentation/Documentation.md

@@ -59,6 +59,7 @@ For example if you want to rotate UV in your **_.gdshader_** file, you can use `
 <h3>&emsp;Noise</h3>
 
 <h4><a href="/documentation/Nodes/Procedural/Noise/GradientNoise.md">&emsp;&emsp;Gradient Noise node</a></h4>
+<h4><a href="/documentation/Nodes/Procedural/Noise/GyroidNoise.md">&emsp;&emsp;Gyroid Noise node</a></h4>
 <h4><a href="/documentation/Nodes/Procedural/Noise/PseudoRandomNoise.md">&emsp;&emsp;Pseudo Random Noise node</a></h4>
 <h4><a href="/documentation/Nodes/Procedural/Noise/SimpleNoise.md">&emsp;&emsp;Simple Noise node</a></h4>
 <h4><a href="/documentation/Nodes/Procedural/Noise/Voronoi.md">&emsp;&emsp;Voronoi node</a></h4>

documentation/Nodes/Procedural/Noise/GyroidNoise.md

@@ -0,0 +1,18 @@
+# Gyroid Noise node
+Generates a gyroid noise based on input UV. The resulting <b><i>output</i></b> values will be between 0 and 1.
+<hr>
+
+**Inputs**
+|Name|Type|Binding|Description|
+|---|---|---|---|
+|uv|vec2|UV|Input UV value|
+|scale|float|none|Noise scale|
+|ratio|vec2|none|Noise ratio for X and Y Axes|
+|height|vec2|none|Noise height|
+|thickness|vec2|none|Noise thickness|
+  
+**Outputs**
+|Name|Type|Binding|Description|
+|---|---|---|---|
+|output|float|None|Output noise value|
+___