Revision control
++ void MAIN()
++ {
++ METALNESS = 0.0;
++ ROUGHNESS = 1.0;
++ OCCLUSION_AMOUNT = UV0.x;
++ }
++ void MAIN()
++ {
++ METALNESS = 0.0;
++ ROUGHNESS = 1.0;
++ OCCLUSION_AMOUNT = UV0.x;
++ }