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Maya Plugin Export Mesh Error: faces invalid

I don't know if anyone has posted modeling guidelines for the Maya Plugin, but I am having some trouble with faces being invalid.

Is there any documentation on the maya plugin translator? its limitations? or the best way to debug faces of mesh invalid errors.

thanks
a

// Warning: Some faces of mesh 'someShape' were invalid and were skipped. //

That warning refers to triangles which have very small or 0 area, otherwise known as degenerate triangles. The plug-in will skip them during the export process. You can remove those faces by using Maya's clean-up command, but the warning should not be a problem in most cases. You will only run into trouble if your object is extremely small (the order of millimeters) and the camera is very close to it, because you might see cracks in the model where the plug-in skipped really tiny triangles.