| ### Compilation failed: | |
| error: 6: 'main' parameter must be 'vec4', 'float4', or 'half4' | |
| error: 7: 'main' parameter must be 'vec4', 'float4', or 'half4' | |
| error: 8: 'main' parameter must be 'vec4', 'float4', or 'half4' | |
| error: 9: 'main' parameter must be 'vec4', 'float4', or 'half4' | |
| 4 errors |