D3DXTessellateNPatches function
Tessellates the given mesh using the N-patch tessellation scheme.
Syntax
HRESULT D3DXTessellateNPatches(
_In_ LPD3DXMESH pMeshIn,
_In_ const CONST DWORD *pAdjacencyIn,
_In_ FLOAT NumSegs,
_In_ BOOL QuadraticInterpNormals,
_Out_ LPD3DXMESH *ppMeshOut,
_Out_ LPD3DXBUFFER *ppAdjacencyOut
);
Parameters
-
pMeshIn [in]
-
Type: LPD3DXMESH
Pointer to an ID3DXMesh interface, representing the mesh to tessellate.
-
pAdjacencyIn [in]
-
Type: const CONST DWORD*
Pointer to an array of three DWORDs per face that specify the three neighbors for each face in the source mesh. This parameter may be NULL.
-
NumSegs [in]
-
Type: FLOAT
Number of segments per edge to tessellate.
-
QuadraticInterpNormals [in]
-
Type: BOOL
Set to TRUE to use quadratic interpolation for normals; set to FALSE for linear interpolation.
-
ppMeshOut [out]
-
Type: LPD3DXMESH*
Address of a pointer to an ID3DXMesh interface, representing the returned tessellated mesh.
-
ppAdjacencyOut [out]
-
Type: LPD3DXBUFFER*
Address of a pointer to an ID3DXBuffer interface. If the value of this parameter is not set to NULL, this buffer will contain an array of three DWORDs per face that specify the three neighbors for each face in the output mesh. This parameter may be NULL.
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 values: D3DERR_INVALIDCALL, D3DXERR_INVALIDDATA, E_OUTOFMEMORY.
Remarks
This function tessellates by using the N-patch algorithm.
Requirements
| Requirement | Value |
|---|---|
| Header |
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| Library |
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See also