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Scales all the samples associated with a given submesh. The method is useful for computing subsurface scattering.
Syntax
HRESULT ScaleMeshChunk(
UINT uMeshChunk, FLOAT fScale, LPD3DXPRTBUFFER pDataOut );
Parameters
- uMeshChunk
- [in] Location in the mesh at which to start scaling samples.
- fScale
- [in] Value by which to multiply each vector in the submesh.
- pDataOut
- [in, out] Pointer to a ID3DXPRTBuffer object to receive rescaled samples in the submesh.
Return Value
If the method succeeds, the return value is S_OK.
If the method fails, the return value can be one of the following:
D3DERR_INVALIDCALL The method call is invalid. For example, a method's parameter may have an invalid value. E_OUTOFMEMORY Microsoft Direct3D could not allocate sufficient memory to complete the call.