i tend to be a program abuser... i use whatever works at the time, without regard to any 'purity' of render or any such notions. i wonder how many of you mix apps like that? i typically see many 'single app' renders up there so i am suspecting, not many. anyway, here is an example of a multi-app fractal. discovered in ultrafractal, then brought into xenodream to 'light' it, which gives it it's 3 dimensionality.