I was rendering some animation for flash earlier, rendered the background, then the foreground objects that move all on a series of transparent alpha PNGs so i can composite the two in flash.
I have some reflective surfaces on the main animated objects, and i want these to reflect the background so they don’t look like crappy grey plastic…
I have this working using render layers. but it has to “pre-render” the background on each frame, and on the second pass or so the background is taken out, leaving only the object that’s animated. This is fine, but in light of speeding up render time and for future reference is there a way that i can make it use the stuff on the “background” layer for reflections without having to “pre-render” it on each frame?