Black Polygons? Zbrush To Maya

[mussoltrek]

Hi.

Where did these black polygons come from and how can I get rid of them?

I built the mesh in Maya and sculpt on it in ZBrush. The last time I moved it from ZBrush into Maya these black polygons appeared in random, bilaterally symmetrical locations throughout the mesh. If I go into the Attribute Editor and attempt to change color, all the polygons in the mesh change color except the black ones, which stay black. If I go into Faces mode and select a black polygon and delete it, then use Fill Hole to replace it, it is still black. If I delete a black polygon and use Append to Polygon ... it works. So, I have this labor intensive solution to converting the black polygons back into normal polygons but I sure would like a global solution and I sure would like to know what caused it in the first place.

Thanks!

~S.~

ps - I don't have a way to post an image.

[doug-hines]

Have you tried flipping your normals?

If that does not work I would recommend you take a look at your model in ZBrush. Use the Check UV tool and make sure that there are not overlayed UVs.

Hope this helps.

[zdoodle]

Have had same problem with zbrush models.
Black faces and normals looking distorted in the viewport. Together with that maya refuse to soft those normals.

Guess im just doing something wrong. However now i usually export out the model to OBJ again, with no options on, take it back in, and it solved those problems everytime.