heyas; those swirly things on the ground, those are moire patterns. im guessing youre using a tiled texture, right? as the square/tiled bits reach the horizon, they get closer together and appear to curve. um, kinda like those escher prints that get infinitely smaller as they near the edge of a circle. mike went nuts with those things; what did you do, mike? quit using textures on the infinite ground plane, and used a finite plane or cube, didnt ya?