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Re: Poly Skull Model cracks up when converted to SubD in Maya

Posted by Scott Schaefer on September 19, 2005 at 10:59:09:

In Reply to: Poly Skull Model cracks up when converted to SubD in Maya posted by videohead on September 18, 2005 at 09:49:09:

: I know the discussions on this forum are rather academic but I have a problem with a polygon model I'm trying to convert to SubD in Maya. I have posted a similar question on an artists forum but I though you guys (knowing how the subD algorithms work) might be able to suggest ways to get around the unslighly cracks that I'm getting.

:http://cube.phlatt.net/forums/spiraloid/viewtopic.php?TopicID=1166

The problem is that the vertices along your cracks are not identified together. I think your post on the other forum mentioned this as well (welding vertices). I don't know a lot about Maya's implementation of subdivision, but your problems are definitely being caused by the vertices not being the same on each of those polygons along the crack. The connectivity of the base surface determines the connectivity of the subdivided surface.

I'm not an expert Maya user so I can't tell you how to fix the problem in Maya. I just know how I would do it if I was writing my own application.

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: : I know the discussions on this forum are rather academic but I have a problem with a polygon model I'm trying to convert to SubD in Maya. I have posted a similar question on an artists forum but I though you guys (knowing how the subD algorithms work) might be able to suggest ways to get around the unslighly cracks that I'm getting. : :http://cube.phlatt.net/forums/spiraloid/viewtopic.php?TopicID=1166 : The problem is that the vertices along your cracks are not identified together. I think your post on the other forum mentioned this as well (welding vertices). I don't know a lot about Maya's implementation of subdivision, but your problems are definitely being caused by the vertices not being the same on each of those polygons along the crack. The connectivity of the base surface determines the connectivity of the subdivided surface. : I'm not an expert Maya user so I can't tell you how to fix the problem in Maya. I just know how I would do it if I was writing my own application.

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