Convert poly to sub

[shadowholm]

Hello,

I'm following the Photo realistic car modeling kit, and I'm trying to convert from poly to sub on the hood. However, when I try to it says "Error: Command polyToSubdiv failed. Open Script Editor for details." When I open the script editor, it says

"// Warning: Nothing is selected. Select objects or components to delete. //
// Error: polyToSubdiv1 (Poly To Subdiv Node): One or more vertices is nonmanifold.
// Nonmanifold geometry cannot be converted to a subdivision surface.
// To clean up nonmanifold vertices, use Polygons->Cleanup with the nonmanifold option. //
// Error: Command polyToSubdiv failed. Open Script Editor for details."

After I cleanup the nonmanifold geomerty as it suggests, and convert it to subd, the subd result is all messed up with circles and holes in it! :confused:

Any help on how I can solve this without remodeling it would be great, thanks.

[DjVoyager]

That means you probably have double faces or vertices somewhere. Couple of ways to fix that;
1. After running "Polygons> Cleanup" Maya highlights those areas. Delete those faces or vertices, and the problem is fixed.
OR
2. The subdiv shape is showing a hole/s, you can go into "Polygon mode" and use "Polygon > Append to Polygon tool" to close that hole.
OR
3. There might be vertices on the object that are not merged properly. Before converting to subdiv, you can use "Edit Polygon > Merge Vertices (option box > high value)" to fix those, and your subdiv shape comes out fine.
Btw, if you don't know which vertices those are, you can run the convert to subdiv, check where the hole happens or where the cleanup highlights, and use the "undo" command to go back and fix them.

Hope any one of these works.
Good luck!

[laxman]

If you still can't get it to work, post a picture of the wireframe and the converted sub-Ds. Also if you go to Display->Head up display->poly count, it will tell you how many verticies you have selected. So if you click and drag a selection box around a place where it looks like there is onle 1 vertex and it says you have two then you know you need to merge it.

[m.eko]

i think you accidently duplicate the object faces or you tried to undo from subd to polygon. i did it before :) the best way to get ri of the holes and all other sh.tty things on your mesh, find the double faces one and one and delete them.

you probably will dele the some wrong faces. to fix the problem merg the vertecies on whole mesh.

good luck...