Vector displacement render creating cracks in the model

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  10 October 2012
Question Vector displacement render creating cracks in the model

Hi friends
I have a character to be rendered in maya 2013.The model was done in zbrush4R4 and now want the file in maya.I am trying vector displacement map this time instead of normal displacement map.
Everything is working fine.Except once I load VD map in the shader and try to render using MR
the mesh is creating CRACKS or holes in the mesh in the render at seam areas.
I have tried my best solving this problem. :(
I even tried the maps from Mudbox too.So I guess the problem is within MR in maya.
can anybody help me solve this issue.Is it a bug in maya..is VD maps still not compatible with maya .Plz come forward and give me a solution guys .A lot of thanks in advance
 
  10 October 2012
It's not a bug, it's just a limit of how far you can push the detail with displacement maps, if you go too far with it you'll get those cracks, especially at the UV seams. Normal maps can cause the same issue too if you crank up the values high enough.

Essentially you need to find the right balance between how detailed the base mesh is and how much detail the displacement map adds to that at render time.

Cheers,
Brian
 
  10 October 2012
Hi thanks for the reply
My base mesh isnt that low .Its having enough polygons to support the details as i retopo'ed it in Topogun.I am not getting any issues with normal maps and the standard displacement.They are working quite fine.I am getting problem only with vector displacement.
 
  10 October 2012
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