somebody <x### [at] ycom> wrote:
> Perspective projection is not strictly achieved with matrix
> multiplication applied to standard coordinates, so you include a special
> equivalency clause / homogenous coordinates (a division in disguise), and
> with that in mind, you can use the remaining elements of the 4x4 matrix to
> that end.

  Yeah, perspective projection with a 4x4 transformation matrix is only
possible if the points are in homogeneous coordinates.

-- 
                                                          - Warp

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