Version: 2020.3
语言: 中文

GraphicsBuffer.CopyCount

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public static void CopyCount (ComputeBuffer src, ComputeBuffer dst, int dstOffsetBytes);
public static void CopyCount (GraphicsBuffer src, ComputeBuffer dst, int dstOffsetBytes);
public static void CopyCount (ComputeBuffer src, GraphicsBuffer dst, int dstOffsetBytes);
public static void CopyCount (GraphicsBuffer src, GraphicsBuffer dst, int dstOffsetBytes);

描述

将附加/使用缓冲区的计数器值复制到另一个缓冲区。

Append/consume and counter buffers (see GraphicsBuffer.Target.Append, GraphicsBuffer.Target.Counter) keep track of the number of elements in them with a special counter variable. CopyCount takes a buffer as src, and copies its counter value into dst buffer at given byte offset.

其最常与 Graphics.DrawProceduralIndirect 结合使用， 以渲染任意数量的图元，不必将它们的计数读回到 CPU。

On DX11 there is a restriction on the dst buffer - it must have been created with ComputeBufferType.Raw, GraphicsBuffer.Target.Raw, ComputeBufferType.IndirectArguments, or GraphicsBuffer.Target.IndirectArguments type. On other platforms dst can be any type.

另请参阅：SetCounterValue。

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