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How do you add subdivisions to polygons when maya won't let you?

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Matthew Bowyer
How do you add subdivisions to polygons when maya won't let you?
on Feb 12, 2010 at 3:31:31 pm

Hi there,

I am trying to add subdivisions to obj. objects, which are buildings from google-earth that have been converted to obj. objects in sketchup pro.

It gives me no subdivision objects and when i go modify>convert>polygons to subdivisions I get this error :

// Error: polyToSubdiv1 (Poly To Subdiv Node): One or more edges is nonmanifold.
// Nonmanifold geometry cannot be converted to a subdivision surface.
// To clean up nonmanifold edges, use Mesh->Cleanup with the nonmanifold option. //
// Error: Command polyToSubdiv failed. Open Script Editor for details. //

Here is a screenshot : http://s329.photobucket.com/albums/l362/mattbowyer/?action=view¤t=Pic...

Can anybody suggest a solution or workaround for this as I need more vertices to attach particles to.

Thanks!

Matt


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Michiel Duvekot
Re: How do you add subdivisions to polygons when maya won't let you?
on Feb 12, 2010 at 8:03:05 pm

This is one of those (rare) error messages that is helpful and tells you exactly what you need to do, which is to use Mesh->Cleanup with the nonmanifold option.

The reason you're getting this messsage is that the mesh contains edges that are shared between three faces (the non-manifolds), something you typically want to avoid, and something that cannot exist in a SubD.



Michiel
http://www.thnkr.com


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