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Drazgal

Dumass IndexBuffer Question

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Sorry to ask this but Im having trouble understanding some of the parameters for DrawIndexedPrimative Taken from the sdk docs Type: Im fine with this BaseVertexIndex: Not too sure MinIndex: Not too sure NumVertices: Number of indices that I will use StartIndex: I guess where in the index buffer to start PrimitiveCount: Number of triangles etc drawn As you can see its the 2nd and 3rd paramters I have a problems with. Could someone give me a quick run down on what they do? Thanks

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*Dumass answer*

Type
[in] Member of the D3DPRIMITIVETYPE enumerated type, describing the type of primitive to render. D3DPT_POINTLIST is not supported with this method. See Remarks.
BaseVertexIndex
[in] Offset from the start of the index buffer to the first vertex index.
MinIndex
[in] Minimum vertex index for vertices used during this call.
NumVertices
[in] Number of vertices used during this call, starting from BaseVertexIndex + MinIndex
StartIndex
[in] Location in the index array to start reading vertices.
PrimitiveCount
[in] Number of primitives to render. The number of vertices used is a function of the primitive count and the primitive type. The maximum number of primitives allowed is determined by checking the MaxPrimitiveCount member of the D3DCAPS9 structure.


Base: bytes offset to the first vertex?


.lick

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