Merge pull request #24 from ScribbleLabApp/auth

🎸 Metal: Grayscale shader
ScribbleLabApp · Nov 15, 2023 · d5a2841 · d5a2841
2 parents c71b12a + 97286b4
commit d5a2841
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/ScribbleLab/Core/Componets/Shaders/Shaders.metal b/ScribbleLab/Core/Componets/Shaders/Shaders.metal
@@ -9,4 +9,9 @@
 #include <SwiftUI/SwiftUI_Metal.h>
 using namespace metal;
 
-
+// Grayscale shader
+[[ stitchable ]] half4 grayscale(float2 position, SwiftUI::Layer layer) {
+    half4 originalColor = layer.sample(position);
+    float grayscaleValue = (originalColor.r + originalColor.g + originalColor.b) / 3.0;
+    return half4(grayscaleValue, grayscaleValue, grayscaleValue, originalColor.a);
+}