|Microsoft DirectX 9.0|
Optimizes the patch mesh for efficient tessellation.
DWORD Flags );
- [in] Currently unused.
If the method succeeds, the return value is D3D_OK.
If the method fails, the return value can be one of the following values.
D3DERR_INVALIDCALL The method call is invalid. For example, a method's parameter may have an invalid value. D3DXERR_CANNOTATTRSORT Attribute sort (D3DXMESHOPT_ATTRSORT) is not supported as an optimization technique. E_OUTOFMEMORY Microsoft?Direct3D?could not allocate sufficient memory to complete the call.
This function performs one-time optimization for patch meshes that need to be tessellated repeatedly by calling the Tessellate method. The optimization performed is independent of the actual tessellation level used. If vertices are changed, this method must be called again.