I've used fake skydomes for quite a time but never had the idea of simulating image based lighting using color filter. The look of "overcasted" scenes is so good that I almost never use other lighting techniques now, and I fake directional light by altering the overcaster sky maps :) I'd like to show you some of the overcaster renderings available at my website ( http://gundamweapons.cjb.net ), I hope you like them. Contact Paolo Zago zpaolo@yahoo.com http://gundamweapons.cjb.net