Displace with fractal in Viewports

[Joe Laffey <joe(at)laffey.tv>]

Is there any way to displace geometery with a world-coordinate fractal 
pattern such that I can see the displacement in the viewport (i.e. not 
render-time displacement)?

I need to limit the displacement based on a weightmap.

Thanks,

--
Joe Laffey                |       Visual Effects for Film and Video
LAFFEY Computer Imaging   |     -------------------------------------
St. Louis, MO             |       Show Reel http://LAFFEY.tv/?e01632
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