I'm trying to create a small avalance of sand, and from my research I've noticed that it has a bit of a rolling feel to it where the sand particles in the front of the "wave" that are in contact with the main surface tend to slow down and be overtaken by the sand right behind it. That sand then hits the main surface, begins to slow down, and is overtaken by the sand behind it... and so on.

My attempts to re-create this have failed so far. What I'd like to do is creat a friction PP attribute (or something like it). I also tried a conservePP, using velocity, using acceleration, and mass. Nothing has worked. The problem is, I can't figure out how to connect it.

If anyone has any ideas, that's be super.

Thanks,
-dann