In my map, at theedges there are upwards slopes at a 90 degree angle done with the clipping tool. However, for some reason they have some odd lighting issues. Various peices of them will appear darker than the rest, or even pure black. Does anyone know the cause of this? My second questions is a matter of how to do something optimally. I want to remove the slopes and just replace them with a plain stretching into the distance, scattered with a few trees. My question is, how could I do this? The obvious solution would be to just have a peice of ground stretching off out of the skybox, but I'm pretty sure that is a major optimization 'no, no'. So what would be the best way to go about this?