Strange lighting problem.
I've been trying to model a desert background for my 3D animation assignment recently and have had some issues while trying to light the stage. I've made a fairly large background with a good number of polygons, and now the lighting won't show up when I render it out. It's completlely black. Could it be graphics card? Or is it possible that my computer is once again refusing to render out anything new, as I had black while I was messing with the ambient lighting. It kind of stops rendering anything new after a while with high poly counts..