Applies gutters to an ID3DXPRTBuffer buffer object.
HRESULT ApplyGuttersPRT( LPD3DXPRTBUFFER pBuffer );
If the method succeeds, the return value is S_OK. If the method fails, the following value will be returned.
D3DERR_INVALIDCALLClass 2 texels are generated by resampling class 1 and 4 texels.
The width and height of the texture must be the same as those returned by ID3DXTextureGutterHelper::GetWidth and ID3DXTextureGutterHelper::GetHeight.
Header: Declared in D3dx9mesh.h.