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i’m sorry to have to do this but i’m at my wits’ end on this thing. i’ve posted two images that should help me illustrate. the first is a viewport screenshot that shows a character and piece of floor tile geometry. both have mental ray displacement nodes applied, nothing fancy. actually the character has 3 displacement nodes.
the second image is a mental ray render. notice the character’s displacement nodes is working well, while the floor tile’s node is not. i can’t post an image of what the floor tile is supposed to look like right now, just take my word for it when i tell you it shouldn’t look like a suppository.
as you can see by the mummy character, i know how to render successful displacement, so none of the standard fixes are warranted (although i tried them all anyway). beyond the standard “mental ray displacement problems” checklist, here are a few things i tried:
i’ve trashed maya, trashed my userPrefs mel, i’ve rechecked welds, UVs, normals, tried with maya-generated geometry, tried with zBrush-generated geometry, tried with maya materials and mental ray materials, “exported all” and imported into a new scene. tried it in vista.
the one piece of info that i hope will crack this nut is that the floor tile is brand new. i knocked it out in a few hours a couple days ago. the character, on the other hand, was rigged for animation two months ago. now i know what you’re thinking, just duplicate the working approximation node, or plug them both into the same working node. no dice.
oh, and once again, i’m running maya 2009 sp1a on win7 64bit. my box is an early 2008 mac pro with all the goodies.
and thank you.
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