1 files changed, 31 insertions, 0 deletions
diff --git a/Assets/ImageProcessing.glsl b/Assets/ImageProcessing.glsl
new file mode 100644
index 0000000..3a05425
--- /dev/null
+++ b/Assets/ImageProcessing.glsl
@@ -0,0 +1,31 @@
+#type compute
+#version 430 core
+
+layout(local_size_x = 16, local_size_y = 16) in;
+
+layout(binding = 0) uniform sampler2D u_InputTexture;
+layout(binding = 1, rgba8) uniform image2D u_OutputTexture;
+
+uniform vec2 u_TextureSize;
+uniform float u_Brightness;
+uniform float u_Contrast;
+uniform float u_Saturation;
+
+void main()
+{
+    ivec2 pixelCoord = ivec2(gl_GlobalInvocationID.xy);
+    
+    if (pixelCoord.x >= int(u_TextureSize.x) || pixelCoord.y >= int(u_TextureSize.y))
+        return;
+    
+    vec2 texCoord = (vec2(pixelCoord) + 0.5) / u_TextureSize;
+    vec4 color = texture(u_InputTexture, texCoord);
+    
+    color.rgb = (color.rgb - 0.5) * u_Contrast + 0.5 + u_Brightness;
+    
+    float luminance = dot(color.rgb, vec3(0.299, 0.587, 0.114));
+    color.rgb = mix(vec3(luminance), color.rgb, u_Saturation);
+    color.rgb = clamp(color.rgb, 0.0, 1.0);
+    
+    imageStore(u_OutputTexture, pixelCoord, color);
+}