What's up with this?
Subsurf level 0 in 3d view, level 2 in render view. Oren-Nayer/Blinn shader, three spot lights with shadows. Tried the different shaders, no difference. Altered the subsurf levels, and the patterns only changed size.
What's going on, and how do I kill it?
Like I said over at Elysiun, try playing with the Bias value of your spots.
Life is what happens to you when you're busy making other plans.
- John Lennon