Ok... I'll be as brief as possible. Been working on a shot for a couple of days now. Sith Warriors marching below a castle cliff (from center of shot coming towards exit left.) with a flowing figure in the distance - large building in the background. Here is what I did: Recomposited the sky - did some minor tweaking, added an overlay layer with a gauss blur of about 3 - 5, set rgb values accordingly to match the sky as well as some bright/contrast sets. I then realized that the sky should be creating a HUGE shadow effect over everything considering its contrast to the scene. Here is what I tried: turning the clouds layer into a 3d layer copy and pasting it over the foreground - creating a mask over the top of the foreground figures (so it doesnt show over the clouds) and attempting to animate it after setting it to overlay (without a layer beneath so it is mostly opaque), dropping the opacity and raising the contrast for a more shadowy effect. The color in that layer offsets any rgb tweaks I've made, and desaturating it definately does not help. Aside from that the motion is very flat, hard to track with the sky layer and doesnt seem to travel like a shadow would across the ground - seems more like a fog effect. I thought about making several masks around the foreground and distorting them, but it seems like a very hard way to a common sense issue. The shadows should be smaller in the distance as they travel down the face of the castle wall which is about fifty to sixty yards away, as well as the building which 5 - 600 yards away, and then change angle when it hits the ground and foreground figures. I also tried using a displacement map assigning the forground to it but no difference. Haven't tried mesh warp yet but I'm a bit skeptical. any ideas would be GREATLY appreciated.