> Quote - This model is kind of low-poly in places, which is fine, if I could turn on Smoothing. But you've got some wonky polygons that go crazy with smoothing. If you could adjust those polys (just cut them near the corners so they don't try to bend around so much) we could turn on smoothing and the round parts would really look round, instead of piecewise linear. > Cool model.

Okay I'll set it up for smoothing.

I rendered it with Poser default light and no lines appeared, then rerendered with my IBL light -- I'm now wondering whether my AO settings cause those lines.  The light is in your Runtime/Lights/EnvPanorama folder -- will you take a look at the AO setting in the IBL light please.

Your reflective shaders look good; are you saying the renderer itself is randomly throwing artifacts in?