Noob rendering glass shelves--disaster
 

Hi all;

I dont know what Im doing with this rendering, but I would like some tips please. I have this weird effect on the top of the shelf as seen by the arrow.

Can anyone tell me what I need to do to fix it?

Thanks!

check the hardness of the edges
display > polygons > soft/hard edges
experiment toggling the edges of the face between hard and soft

or it could (but quite unlikely) be from intersecting geometry

Nope
 

No such luck. Any other suggestions?

can you post up a close up of it, and also a wireframe?

Glass
 

Well I deleted the polygon shelf and made a new one--that seems to have done the trick...for now. Thanks all for your help!