D3DXValidPatchMesh function
Validates a patch mesh, returning the number of degenerate vertices and patches.
Syntax
HRESULT D3DXValidPatchMesh(
_In_ LPD3DXPATCHMESH pMeshIn,
_Out_ DWORD *pNumDegenerateVertices,
_Out_ DWORD *pNumDegeneratePatches,
_Out_ LPD3DXBUFFER *ppErrorsAndWarnings
);
Parameters
-
pMeshIn [in]
-
Type: LPD3DXPATCHMESH
Pointer to an ID3DXPatchMesh interface, representing the patch mesh to be tested.
-
pNumDegenerateVertices [out]
-
Type: DWORD*
Returns the number of degenerate vertices in the patch mesh.
-
pNumDegeneratePatches [out]
-
Type: DWORD*
Returns the number of degenerate patches in the patch mesh.
-
ppErrorsAndWarnings [out]
-
Type: LPD3DXBUFFER*
Returns a pointer to a buffer containing a string of errors and warnings that explain the problems found in the patch mesh.
Return value
Type: HRESULT
If the function succeeds, the return value is D3D_OK. If the function fails, the return value can be one of the following: D3DERR_INVALIDCALL, E_OUTOFMEMORY.
Remarks
This method validates the mesh by checking for invalid indices. Error information is available from the debugger output.
Requirements
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See also