DrawIndexedPrimitive()在多数据流中参数怎么设置？主要疑问是

hwbnet

DrawIndexedPrimitive()在多数据流中参数怎么设置？主要疑问是第三个参数（最小的索引）。

Liker

The MinIndex and NumVertices parameters specify the range of vertex indices used for each DrawIndexedPrimitive call. These are used to optimize vertex processing of indexed primitives by processing a sequential range of vertices prior to indexing into these vertices. It is invalid for any indices used during this call to reference any vertices outside of this range.

要看你模型的格式了，多数情况下这个值跟startindex是相等的，除非导出插件比较bt，或者干脆设成0就行了

多流主要看的是SetStreamSource里边的第三个参数

hwbnet

虽然还是不清楚，但是：干脆设成0就行了，设置成0确实就行了。