~ | Pass system shader

shaders/denoising.glsl

@@ -0,0 +1,20 @@
+#version 430 core
+
+layout(local_size_x = 16, local_size_y = 16) in;
+layout(binding = 0, rgba32f) uniform image2D read_texture;
+layout(binding = 2, rgba32f) uniform image2D write_texture;
+
+uniform vec2    u_resolution;
+
+void main()
+{
+	ivec2 pixel_coords = ivec2(gl_GlobalInvocationID.xy);
+	if (pixel_coords.x >= int(u_resolution.x) || pixel_coords.y >= int(u_resolution.y)) 
+		return;
+
+	vec4 color = imageLoad(read_texture, pixel_coords);
+
+	color *= 0.5;
+
+	imageStore(write_texture, pixel_coords, color);
+}

shaders/frag.frag

@@ -5,41 +5,5 @@ out vec4 FragColor;
 uniform sampler2D screenTexture;
 
 void main() {
-    vec2 uv = TexCoords;
-
-    float incr_x = 1.0 / 1920.0 ;
-    float incr_y = 1.0 / 1080.0 ;
-
-    int iteration = 5;
-    
-    if (iteration == 0) {FragColor = texture(screenTexture, uv);return;}
-
-    vec4 color = vec4(vec3(0.), 1.0);
-    float totalWeight = 0.;
-
-    float kernel[5] = float[5](1.0/16.0, 1.0/4.0, 3.0/8.0, 1.0/4.0, 1.0/16.0);
-    
-    for (int i = 0; i < iteration; i++)
-    {
-        int holes = int(pow(2, i));
-
-        for (int x = -2; x <= 2; x++)
-        {
-            for (int y = -2; y <= 2; y++)
-            {
-                vec2 current_uv = uv + vec2(x * holes * incr_x, y * holes * incr_y);
-                // if (current_uv.x < 0. || current_uv.y < 0. || current_uv.x > 1. || current_uv.y > 1.)
-                    // continue ;
-                // current_uv = clamp(current_uv, vec2(0.), vec2(1.));
-
-                float weight = kernel[x+2] * kernel[y+2];
-                
-                totalWeight += weight;
-                color += texture(screenTexture, current_uv) * weight;
-            }
-        }
-    }
-
-
-    FragColor = color / totalWeight;
+    FragColor = texture(screenTexture, TexCoords);
 }