evt | 图形处理期间,在 GPU 上开始执行该命令缓冲区的时间点。 |
buffer | 要执行的缓冲区。 |
queueType | 要在其上执行缓冲区的所需异步计算队列的类型。 |
shadowPassMask | 指定要为其执行缓冲区的阴影通道的遮罩。 |
向 GPU 的异步计算队列添加命令缓冲区,并在图形处理到达给定点时执行该命令缓冲区。
当图形队列处理到达 evt 参数描述的时间点时,在 GPU 上执行一个异步计算命令缓冲区。
可以将多个命令缓冲区设置为在同一个光源事件发生时执行(甚至可以多次添加同一个缓冲区)。若要从执行中删除命令缓冲区,请使用 RemoveCommandBuffer。
通过传递阴影通道遮罩可以详细控制将对其执行缓冲区的阴影通道。
命令缓冲区只能调用以下命令在异步计算队列上执行,否则将出现错误(在日志中记录并在 Editor 窗口中显示):
CommandBuffer.BeginSample
CommandBuffer.CopyCounterValue
CommandBuffer.CopyTexture
CommandBuffer.CreateGPUFence
CommandBuffer.DispatchCompute
CommandBuffer.EndSample
CommandBuffer.IssuePluginEvent
CommandBuffer.SetComputeBufferParam
CommandBuffer.SetComputeFloatParam
CommandBuffer.SetComputeFloatParams
CommandBuffer.SetComputeTextureParam
CommandBuffer.SetComputeVectorParam
CommandBuffer.WaitOnGPUFence
系统保证缓冲区中的所有命令都在同一队列上执行。如果目标平台不支持异步计算队列,则将工作分发到图形队列。
另请参阅:GPUFence、SystemInfo.supportsAsyncCompute、CommandBuffer、RemoveCommandBuffer、GetCommandBuffers。
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