Does the Convert / Displacement to polygon work only in 8bits depth ?

[smoluck]

Here a screenshot of what I get from the Convert Displacement to polygons.
As you can see It looks like if I have used a 8 bits depth but It's still a 16 bits Tiff file That I've used.

http://skeeter.mot.free.fr/cgtalkupload/Sculptpolygon/disp.gif

I've got the same Terraced problem when I've tried to use that Zdepth map (displacement 16 bits) with the Sculpt geometry tool / import attribute. Have a look at this thread (http://forums.cgsociety.org/showthread.php?t=385921).

PS: I've tried to tweak the File node and add a Gaussian PreFilter of 4 and I've notice a significant improvement of the shape but there is still a kind of terraced shape.


nobody can help me ?

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