I saw, and saved, a post about this a while back, but my HD died and took the file with it. I keep getting the banded effect on Firefly renders of flat objects with textures applied, such as the square primitive I used for the floor in the pic. The same scene renders fine in the P4 mode. I occasionally get the same thing in a non-flat object, and not always on a textured square. The camera angle relative to the surface doesn't seem to matter. I've tweaked all the settings I could find that looked like suspects. Help?

I have seen this too, and I have tried two solutions:

• Use a higher shadow map resolution.

• Use a more high-polygon primitive as the floor. I always use the cloth plane, it appears to take textures better when used as a stretched-out floor than the cube.

It has nothing to do with shadows or polycount. The objects that show this banded effect have double-sided polygons, and Poser 5 is trying to render both sides of the mesh.

Use the single-sided square prop instead, or use displacement on the object's material to "separate" the sides.

http://www.renderosity.com/messages.ez?Form.ShowMessage=1957629

Sometimes it can already help to check the "remove backfacing polygons" box in the render setttings.

I just set up a single sided square and two of the other kind, one with and one without displacement, to see what happened. Shure enough, single sided and with displacement had no banding, and 'remove backfacing' toggles the bands on and off in the non-single sided square without the displacement. I knew it had to be some kind of forehead-slapper like that. Off to do some band-free renders...