Removed unnecessary preserve attachment and shader attachment writes (fixes validation)

data/shaders/subpasses/composition.frag

@@ -9,10 +9,7 @@ layout (input_attachment_index = 2, binding = 2) uniform subpassInput samplerAlb
 
 layout (location = 0) in vec2 inUV;
 
-layout (location = 0) out vec4 outFragcolor;
-layout (location = 1) out vec4 outPosition;
-layout (location = 2) out vec4 outNormal;
-layout (location = 3) out vec4 outAlbedo;
+layout (location = 0) out vec4 outColor;
 
 layout (constant_id = 0) const int NUM_LIGHTS = 64;
 
@@ -72,10 +69,5 @@ void main()
 		fragcolor += diff;// + spec;	
 	}    	
    
-	outFragcolor = vec4(fragcolor, 1.0);
-
-	// Write G-Buffer attachments to avoid undefined behaviour (validation error)
-	outPosition = vec4(0.0);
-	outNormal = vec4(0.0);
-	outAlbedo = vec4(0.0);
+	outColor = vec4(fragcolor, 1.0);
 }

subpasses/subpasses.cpp

@@ -365,9 +365,6 @@ public:
 		// Use the color attachments filled in the first pass as input attachments
 		subpassDescriptions[1].inputAttachmentCount = 3;
 		subpassDescriptions[1].pInputAttachments = inputReferences;
-		// Preserve attachment 1 (position + depth) for next subpass
-		subpassDescriptions[1].preserveAttachmentCount = 1;
-		subpassDescriptions[1].pPreserveAttachments = &preserveAttachmentIndex;
 
 		// Third subpass: Forward transparency
 		// ----------------------------------------------------------------------------------------