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Generate a list of mesh edges and the patches that share each edge.
Syntax
HRESULT GenerateAdjacency(
FLOAT fTolerance );
Parameters
- fTolerance
- [in] Specifies that vertices that differ in position by less than the tolerance should be treated as coincident.
Return Value
If the method succeeds, the return value is D3D_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.
Remarks
After an application generates adjacency information for a mesh, the mesh data can be optimized for better drawing performance. This method determines which patches are adjacent (within the provided tolerance). This information is used internally to optimize tessellation.
See Also
ID3DXPatchMesh::Optimize