Draws 3D triangles to the screen with properties from `pSurf` and `PolyFlags`. The vertex data is in `pOutVerts` and `iNumPts` contains the number of vertices. `IndexArray` contains indices into `pOutVerts` that define the triangles. (Used by batched rendering)
Draws 3D triangles to the screen with properties from `pSurf` and `PolyFlags`. The vertex data is in `pOutVerts`. `IndexArray` contains indices into `pOutVerts` that define the triangles and `iNumPts` is the length of the array. (Used by batched rendering)