This tutorial will show you how to get complex SSS shader animation in post that is extremely hard to do with layering SSS nodes and animating them. It also cuts down on a LOT of render time. The end result is great.
I used a beating heart as my example, but the technique can be applied to any organ (human or other). Anything organic will be ideal for this effect but there may be other uses.
Any animating software can render out the sequence. The same results can be made in Nuke if you don’t like After Effects.