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"Tom York" <alp### [at] zubenelgenubi 34spcom> wrote:
> Each time through the wrinkles normal calculation, the calculated perturbation
> is forced positive using fabs(), and at the end is always added to the original
> normal. This will introduce a gradient, but it's not clear to me how it could be
> removed without altering the overall character of the wrinkles normal.
If the pertubation "amplitude" was known, shouldn't subtracting half of it do
the job?
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