Mesh patch types.
typedef enum D3DXPATCHMESHTYPE
{
D3DXPATCHMESH_RECT = 0x001,
D3DXPATCHMESH_TRI = 0x002,
D3DXPATCHMESH_NPATCH = 0x003,
D3DXPATCHMESH_FORCE_DWORD = 0x7fffffff,
} D3DXPATCHMESHTYPE, *LPD3DXPATCHMESHTYPE;
Triangle patches have three sides and are described in D3DTRIPATCH_INFO. Rectangle patches are four-sided and are described in D3DRECTPATCH_INFO.