Louis <nomail@nomail> wrote:
> The last mathemagical example in the tutorial (the saddle) showed off a nice
> curved shape, and lead me to think that the matrix transform can do some
> spline-like transforms, like pinch, barrel and maybe even extruding an object
> into a helix-formed shape, but when experimenting I'm getting confusing results.

Transformation matrices only allow for affine transformations. That's
transformations where every straight line in the original object
remains straight after the transformation. (In practice this means
translations, rotations, scalings, and any combination of those.)
Thus no twists are possible.

-- 
                                                          - Warp

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