Added PI and TAU to common compute shaders definitions (#749)

Author: RodZill4

addons/material_maker/engine/nodes/buffer_compute.tres

@@ -1,6 +1,6 @@
 [gd_resource type="Resource" script_class="TextResource" load_steps=2 format=3 uid="uid://cefq10ldvkjse"]
 
-[ext_resource type="Script" path="res://addons/material_maker/engine/text_resource.gd" id="1_iqmcs"]
+[ext_resource type="Script" uid="uid://bc3eljtuurjsd" path="res://addons/material_maker/engine/text_resource.gd" id="1_iqmcs"]
 
 [resource]
 script = ExtResource("1_iqmcs")
@@ -14,6 +14,9 @@ layout(set = 3, binding = 0, std140) restrict buffer MM {
 	int mm_chunk_y;
 };
 
+const float PI = 3.14159265359;
+const float TAU = 2.0*PI;
+
 @COMMON_SHADER_FUNCTIONS
 
 const float seed_variation = 0.0;

addons/material_maker/engine/nodes/iterate_buffer_compute.tres

@@ -1,6 +1,6 @@
 [gd_resource type="Resource" script_class="TextResource" load_steps=2 format=3 uid="uid://dftem3gvk6iaq"]
 
-[ext_resource type="Script" path="res://addons/material_maker/engine/text_resource.gd" id="1_28bnl"]
+[ext_resource type="Script" uid="uid://bc3eljtuurjsd" path="res://addons/material_maker/engine/text_resource.gd" id="1_28bnl"]
 
 [resource]
 script = ExtResource("1_28bnl")
@@ -14,6 +14,9 @@ layout(set = 3, binding = 0, std140) restrict buffer MM {
 	int mm_chunk_y;
 };
 
+const float PI = 3.14159265359;
+const float TAU = 2.0*PI;
+
 @COMMON_SHADER_FUNCTIONS
 
 const float seed_variation = 0.0;