Hmmm...

Can someone explain this?

(click thumb for larger image)

Modeled in Modo, quickie rendered in Poser Pro 2010...

The image on the left is how it appears in the preview in Poser. The middle image is wireframe. It's all quads, no tris, no ngons.

The right is how it renders with Poser's default smoothing of 80. It does this at 90, 89.99, 1, 45.... I wasn't about to try all the number combinations between 0 and 360. ;-)

The only way it looks normal in a render is to turn off smoothing for it. That doesn't happen in Softimage or Modo... just Poser and its... shall we say... unique ways... ;-)

Anyone, any ideas why this happens?

...