Most of these methods are implemented in D3DX. You can start looking here, which is a list of all available math functions.
Of course, you can always take a book on 3D math and write these functions yourself.
Most of these methods are implemented in D3DX. You can start looking here, which is a list of all available math functions.
Of course, you can always take a book on 3D math and write these functions yourself.
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