Subdivision causing surface to look like snake skin?

Dice

I'm having difficulty with a car model. The surface on the model is not smoothing, then when i Sub-D it it turns it into something like snake skin.

Any Ideas on what is going on?

Thanks!

TheKD

Judging by looks, that model looks like is built from triangles instead of quads. Triangles makes subd go nuts sometimes.

codex34_f5f1fb6f55

Yeah, why is the first one not smoothing? The correct setting is in the surface properties material settings right near the bottom, smooth to on, and angle to 89.9.

If these are set and you still getting the effect in the first image then ALL your triangles and quads are not joined, and you'll need an external editor to fix the issue.

Attached an image showing a simple sphere, it's the same material with the same smoothing, and each sphere is the same, but one has ALL the faces seperated.

jestmart

Actually it looks like the polygons are not connected thus all the corners getting rounded.