Revision control
++ #version 440
++
++ layout ( local_size_x = 1, local_size_y = 1, local_size_z = 1 ) in;
++
++ layout ( r32f, binding = 0 ) uniform image2D image;
++ layout ( r32f, binding = 1 ) writeonly uniform image2D imageWriteOnly;
++ layout ( r32f, binding = 2 ) readonly uniform image2D imageReadOnly;
++ layout ( r32f, binding = 3 ) readonly writeonly uniform image2D imageReadOnlyWriteOnly;
++
++ void main()
++ {
++ imageLoad(image, ivec2(gl_GlobalInvocationID.xy));
++ imageStore(image, ivec2(gl_GlobalInvocationID.xy), vec4(0));
++
++ imageStore(imageWriteOnly, ivec2(gl_GlobalInvocationID.xy), vec4(0));
++
++ imageLoad(imageReadOnly, ivec2(gl_GlobalInvocationID.xy));
++
++ imageSize(imageReadOnlyWriteOnly);
++ }