adjusted fxaa shader start

assets/shaders/fxaa.frag

@@ -1,8 +1,13 @@
 #version 450
 
+layout(set = 0, binding = 0) uniform sampler2D ppIN;
+
+layout (location = 0) in vec2 outUV;
+
 layout(location = 0) out vec4 outColor;
 
 void main()
 {
-    //outColor = vec4(1.0);
+  vec3 color = texture(ppIN, outUV).rgb;
+  outColor = vec4(color, 1.0);
 }