Hello Mark,

Thanks for the reply. I am familar with your work and know your are more experienced in 3D.

The purpose if for reference for me (and it is a relaxing break from other work - er until something like this pops up) - and if I ever cut it for poser - other illustrators who might want fair detail for lighting reference.

Attached is a more clear look. The geometry is highlighted (note barrel is to be attached to the frame - after I figure out this problem). I rendrered the grooves with the stock blue plastic texture. The grooves (depressed areas) should be blue all the way. You can see that it has the weird anomoly. There is NO intersecting geometry. I picked through the map point by point to see if there was some bizarre tangle - none.

Don't know if this matters - I am using Carrara 5 Pro.

Thanks much!