Mac에 게임 가져오기, 2부: 셰이더 컴파일하기

14:28 - Json Metal Script

{“libraries": {
    "paths": [
   {"path": “ba.metallib”, "label": "myMetalLib"}

    ]
  },
  "pipelines": {
    "render_pipelines": [{
      "vertex_function": "alias:myMetalLib#v",
      "fragment_function": "alias:myMetalLib#f",
      "raster_sample_count": 2,
      "color_attachments": [{
          "pixel_format": "BGRA8Unorm"
      }],
      "depth_attachment_pixel_format":      
        "Depth32Float"
    }]
  }
}

16:30 - Testing Binary Archive hit

// Create Pipeline Descriptor
MTLComputePipelineDescriptor *computeDesc = [MTLComputePipelineDescriptor new];
computeDesc.binaryArchives = @[existingBinaryArchive];
computeDesc.computeFunction = computeFn;
id<MTLComputePipelineState> computePS = 
                     [device newComputePipelineStateWithDescriptor:computeDesc
                                     options:MTLPipelineOptionFailonBinaryArchiveMiss
                                     error:&err];                                                                                        

if(computePS == nil)
{
    // Binary archive is missing compiled shader.
}

17:03 - Loading appropriate Binary Archive

// Load OS-specific binary archives


MTLComputePipelineDescriptor *computeDesc = [MTLComputePipelineDescriptor new];

if (@available(macOS 14, *)) {
    computeDesc.binaryArchives = @[binaryArchive_macOS14];
} else {
    computeDesc.binaryArchives = @[binaryArchive_macOS13_3];
}  
computeDesc.computeFunction = computeFn;
id<MTLComputePipelineState> computePS = 
                     [device newComputePipelineStateWithDescriptor:computeDesc
                                     options:nil
                                     error:&err];