Originally posted by GecT Well you can render stuff out in layers. If the pc laying around is old and "crap" it would hardly be worth it, especially since there is only one. When you said "old" and Windows XP, slow single core cpu was the first thing I thought and you'd be setting yourself up for disappointment if you actually expected anything from it, though I'd find it fun to try. when you say render stuff out in layers, do you mean that you can render say, just the floor, and all the computing power will go into just that, and then say, the background, the paint effects etc all seperately. I was watching that alex alvarez tutorial, and he loaded the alpha channel of a character in photoshop to isolate it and then add a background. I find it hard to get my head around how that works, if you render everything seperate and then composite and have it all end up looking like its part of the same scene. Do all renders automatically have an aplha channel?