Slime wrote:
> This just came to mind, and may or may not work... try a transparent plane
> above the plane which you want to be distorted, and give the transparent
> plane a bumpy normal, and then give it refraction. That might possibly
> create a useable effect. Maybe not though.

yes, this works.
But I fond myself bound to use several stacked planes with maps
adjusted acordingly. Not very easy to handle.

Hermann

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