Mesh twists out of shape with bones

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SirIronPants
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Joined: Wed Nov 28, 2012 8:24 pm

Mesh twists out of shape with bones

Post by SirIronPants » Wed Nov 28, 2012 8:32 pm

So I weight painted after putting my bones in, and for the third time now, the mesh twists horribly when I move bones in Pose Mode. Here's the model: http://www.mediafire.com/?b66unuzf5w0mr0j

This is for a school project, so the sooner I can get an answer, the better things will be. Thanks.

Tehrasha
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Location: Iowa

Post by Tehrasha » Wed Nov 28, 2012 9:49 pm

Posting a .blend might have been easier, as you never know what might get lost in translation between formats...

After importing, I saw a few verts in the arm and the head that are not weighted properly. When I move the bones, the model moves correctly, but those verts remain frozen in space.

I also performed a 'remove doubles' on the mesh and found 73 duplicated verts. It is possible that you selected a duplicate vert during weight painting, and the other remained unweighted and frozen.
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SirIronPants
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Joined: Wed Nov 28, 2012 8:24 pm

Post by SirIronPants » Thu Nov 29, 2012 7:21 pm

Thrasha, thanks for pointing out that there were double vertices, I didn't notice. I removed doubles and re-painted with meticulous attention to detail. The distortion isn't as bad, but is still a very large problem. This is what I am currently dealing with: http://imgur.com/zDugX

I put an IK constraint on the bone with a chain length of two. My main concern is that the mesh does not follow the bones. Even with the IK constraint, the mesh moves around and away from the bone.

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