Pseudo random noise node added

README.md

@@ -10,7 +10,7 @@ If you don't immediatly see new nodes under **_Addons_** category, simply reload
 Delete the contents of **_addons/ShaderLib_** folder from your project. Make sure to delete it using the Godot editor instead of your default file system program.
 # Nodes documentation
 <details open>
-<summary><h1>Input nodes</h1></summary>
+<summary><h1>Geometry nodes</h1></summary>
 <details>
 <summary><h3>Node Scale World node</h3></summary>
 Provides accees to node scale in world space.
@@ -130,6 +130,22 @@ Generates a gradient, or Perlin noise based on input UV. The resulting <b><i>out
 |uv|vec2|UV|Input UV value|
 |scale|float|none|Noise scale|
   
+**Outputs**
+|Name|Type|Binding|Description|
+|---|---|---|---|
+|output|float|None|Output noise value|
+___
+</details>
+<details>
+<summary><h3>Pseudo Random Noise node</h3></summary>
+Generates a pseudo random noise based on input seed. The resulting <b><i>output</i></b> values will be between 0 and 1.
+<hr>
+
+**Inputs**
+|Name|Type|Binding|Description|
+|---|---|---|---|
+|seed|float|none|Input seed|
+  
 **Outputs**
 |Name|Type|Binding|Description|
 |---|---|---|---|

addons/ShaderLib/Geometry/NodeScaleWorld.gd

@@ -1,11 +1,11 @@
 @tool
-class_name VisualShaderNodeInputNodeScaleWorld extends VisualShaderNodeCustom
+class_name VisualShaderNodeGeometryNodeScaleWorld extends VisualShaderNodeCustom
 
 func _get_name() -> String:
 	return "NodeScaleWorld"
 
 func _get_category() -> String:
-	return "Input"
+	return "Geometry"
 
 func _get_description() -> String:
 	return "Provides accees to node scale in world space."
@@ -42,4 +42,4 @@ func _get_global_code(mode: Shader.Mode) -> String:
 	return code
 
 func _get_code(input_vars: Array[String], output_vars: Array[String], mode: Shader.Mode, type: VisualShader.Type) -> String:
-	return output_vars[0] + " = node_scale_world(MODEL_MATRIX);"
+	return output_vars[0] + " = geometry_node_scale_world(MODEL_MATRIX);"

addons/ShaderLib/Geometry/NodeScaleWorld.gdshaderinc

@@ -1,4 +1,4 @@
-vec3 node_scale_world(mat4 model_matrix){
+vec3 geometry_node_scale_world(mat4 model_matrix){
 	vec3 _axis_x = model_matrix[0].xyz;
 	vec3 _axis_y = model_matrix[1].xyz;
 	vec3 _axis_z = model_matrix[2].xyz;

addons/ShaderLib/Procedural/Noise/PseudoRandomNoise.gd

@@ -0,0 +1,39 @@
+@tool
+class_name VisualShaderNodePseudoRandomNoise extends VisualShaderNodeCustom
+
+func _init() -> void:
+	set_input_port_default_value(0, 0.0)
+	output_port_for_preview = 0
+
+func _get_name() -> String:
+	return "PseudoRandomNoise"
+
+func _get_category() -> String:
+	return "Procedural/Noise"
+
+func _get_description() -> String:
+	return "Generates a pseudo random noise based on input seed."
+
+func _get_return_icon_type() -> PortType:
+	return PORT_TYPE_SCALAR
+
+func _get_input_port_count() -> int:
+	return 1
+
+func _get_input_port_name(port: int) -> String:
+	return "seed"
+
+func _get_input_port_type(port: int) -> PortType:
+	return PORT_TYPE_SCALAR
+
+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_code(input_vars: Array[String], output_vars: Array[String], mode: Shader.Mode, type: VisualShader.Type) -> String:
+	return output_vars[0] + " = fract(sin(dot(UV.xy + vec2(%s), vec2(12.9898,78.233))) * 43758.5453123);" % input_vars[0]

addons/ShaderLib/Procedural/Noise/SimpleNoise.gdshaderinc

@@ -7,12 +7,12 @@ float value_noise(vec2 uv){
 	vec2 _fraction = fract(uv);
 	_fraction = _fraction * _fraction * (3.0 - 2.0 * _fraction);
 	vec2 _corner = vec2(1.0, 0.0);
-	
+
 	float _c0 = noise_random_value(_floor + _corner.yy);
 	float _c1 = noise_random_value(_floor + _corner.xy);
 	float _c2 = noise_random_value(_floor + _corner.yx);
 	float _c3 = noise_random_value(_floor + _corner.xx);
-	
+
 	vec2 _blur = smoothstep(0.0, 1.0, _fraction);
 	float mix_one = mix(_c0, _c1, _blur.x) + (_c2 - _c0) * _blur.y * (1.0 - _blur.x) + (_c3 - _c1) * _blur.x * _blur.y;
 	return mix_one;
@@ -22,7 +22,7 @@ float simple_noise(vec2 uv, float scale){
 	int octaves = 6;
 	float amplitude = 0.25;
 	float value = 0.0;
-	
+
 	for(int i = 0; i < octaves; i++) {
 		value += amplitude * value_noise(scale * uv);
 		amplitude *= 0.85;