Compute-based pixel counting and basic ui

materials/shader/PixelCountCompute.glsl

@@ -0,0 +1,31 @@
+// based on:
+//   - https://www.youtube.com/watch?v=5CKvGYqagyI
+//   - https://pastebin.com/pbGGjrE8
+
+#[compute]
+#version 450
+
+// Invocations in the (x, y, z) dimension
+layout(local_size_x = 4, local_size_y = 4, local_size_z = 1) in;
+
+// A binding to the buffer we create in our script
+layout(set = 0, binding = 0, std430) buffer MyDataBuffer {
+	int data[];
+}
+my_data_buffer;
+
+layout(set = 0, binding = 1) uniform sampler2D tex;
+
+void main() {
+	if (texture(tex, vec2(gl_GlobalInvocationID.x, gl_GlobalInvocationID.y)).r > 0.0) {
+		atomicAdd(my_data_buffer.data[0], 1);
+	}
+
+	if (texture(tex, vec2(gl_GlobalInvocationID.x, gl_GlobalInvocationID.y)).b > 0.0) {
+		atomicAdd(my_data_buffer.data[1], 1);
+	}
+	
+	if (texture(tex, vec2(gl_GlobalInvocationID.x, gl_GlobalInvocationID.y)).rgb == vec3(1.0, 0, 1.0)) {
+		atomicAdd(my_data_buffer.data[2], 1);
+	}
+}

materials/shader/PixelCountCompute.glsl.import

@@ -0,0 +1,14 @@
+[remap]
+
+importer="glsl"
+type="RDShaderFile"
+uid="uid://daaysa2a1u6b7"
+path="res://.godot/imported/PixelCountCompute.glsl-abe5c29fd9b584b640dd1cca2cbbc009.res"
+
+[deps]
+
+source_file="res://materials/shader/PixelCountCompute.glsl"
+dest_files=["res://.godot/imported/PixelCountCompute.glsl-abe5c29fd9b584b640dd1cca2cbbc009.res"]
+
+[params]
+

materials/shader/WorldColoring.gdshader

@@ -16,8 +16,7 @@ void fragment() {
 
   vec3 desaturatedColor = vec3(dot(currentColor.rgb, colorToLuminance) * 0.4) + 0.1 * currentColor.rgb;
 
-  ALBEDO = desaturatedColor * (1.0 - playerColorationColor.a) + currentColor.rgb * playerColorationColor.a;
-  
+  //ALBEDO = desaturatedColor * (1.0 - playerColorationColor.a) + currentColor.rgb * playerColorationColor.a;
   ALBEDO = desaturatedColor * (1.0 - playerColorationColor.a) + (playerColorationColor.rgb * 0.3 + currentColor.rgb * 0.7) * playerColorationColor.a;
 }