"clipka" <nomail@nomail> wrote:
> "Tom York" <alp### [at] zubenelgenubi34spcom> 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?

I will try it when I get time. I want to believe, but my instinct is to say that
it would only work if the perturbation function is linear.

Tom

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