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# 6 04-02-2009 , 06:38 PM
arran's Avatar
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Join Date: Dec 2005
Location: Brooklyn, NY
Posts: 3,708
ok - just got a response from hezza on cgsociety. here's his solution -

'Its a known problem with the Catmul Clark subdivision method that was introduced in 8.5, I really don't understand how anyone actually uses mental ray displacement in production without switching it back to the old division method

If you type

addAttr -ln "miExportCCMesh" -at bool mentalraySubdivApprox1;

the problem will go away, but you loose all the memory/speed improvements that the CCmesh method is meant to give us.

Please please report this as a bug to autodesk, its getting a joke this hasn't been fixed in 3 releases.'

haven't tried it yet as i'm at work.


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