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exploding faces - problem
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  • Total Posts: 3
  • Joined: 03 June 2007 11:27 AM

HI,
exploding faces..well, no idea how to call this effect otherwise :)
look for your self:  http://crystalblade.eu/kuatest2.jpg.

So the problem is obvious. That’s my very 1st sculpt in Mudbox, so just for test I took simple sphere.obj to Mudbox, played around with the brushes, there are 5 levels of division, then created 32bit displacement map, exported low poly from Mudbox to OBJ format.
Now Maya part - imported low poly OBJ, set material, added displacement map, added DisplacementApproximation (my workflow follows this tutorials: http://www.pixelcg.com/tutorials/mudbox1_movie.html). Rendered with MR.

I know already that model imported to Mudbox must not have tris, and sphere obviously has them on top and bottom, but I guess that’s not the cause of the ‘exploding faces’ problem.

How to fix it?
Thanks in advance.
Regards!
--
NeonTree



Replies: 0
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  • nemuro
  • Posted: 03 June 2007 07:46 PM

I also get the same problem, but in Mudbox 1.06.

It happened to me when I was subdividing the mesh one more time over the fifth level.

I was forced to work at the fifth level…



Replies: 0
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Right, I work on 1.06 trial.

Does 0-5 levels count as 6 :) ?  I’ll make another test later with less detail.

Any other suggestions?



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  • AlphaJoe
  • Posted: 20 June 2007 08:56 AM

HI,
exploding faces..well, no idea how to call this effect otherwise :)
look for your self:  http://crystalblade.eu/kuatest2.jpg.

So the problem is obvious. That’s my very 1st sculpt in Mudbox, so just for test I took simple sphere.obj to Mudbox, played around with the brushes, there are 5 levels of division, then created 32bit displacement map, exported low poly from Mudbox to OBJ format.
Now Maya part - imported low poly OBJ, set material, added displacement map, added DisplacementApproximation (my workflow follows this tutorials: http://www.pixelcg.com/tutorials/mudbox1_movie.html). Rendered with MR.

I know already that model imported to Mudbox must not have tris, and sphere obviously has them on top and bottom, but I guess that’s not the cause of the ‘exploding faces’ problem.

How to fix it?
Thanks in advance.
Regards!
--
NeonTree

This problem is due to your normals being hard on the mesh in Maya.  Simply select your mesh in Maya and soften the normals and the render will be fine.  With hard edged normals, the mesh will separate at the edge as the displacement is applied.



Replies: 0