| layout(metal, spirv, wgsl, gl, binding = 0) uniform ubo { float f; }; // multiple backends | |
| layout(texture=0, sampler=0) uniform sampler2D s; // invalid (requires backend) | |
| /*%%* | |
| only one backend qualifier can be used | |
| layout qualifier 'texture' is not permitted here | |
| layout qualifier 'sampler' is not permitted here | |
| *%%*/ |