Crashing on mac for me with
2023-04-11T03:22:03.148731Z ERROR wgpu::backend::direct: Shader translation error for stage FRAGMENT: Metal: program_source:170:8: error: invalid return type 'vertex_Output' for vertex function vertex vertex_Output vertex_( ^ program_source:170:8: note: missing output declaration with attribute 'position' program_source:215:11: warning: unused variable 'view_z' float view_z = metal::dot(metal::float4(_e15, _e21, _e27, _e33), world_position); ^ program_source:205:16: warning: unused variable 'uv' const auto uv = varyings_1.uv;