I am attempting to simulate a person being covered in a pile of money that rains down for a music video.
I´ve tryed doing this by layering various emitters with the edge collision behavior applied and offset to get the fallen particles stacking up, but the particles accumulate at the bottom of each emitter and reveal obvious horizontal lines in the stack.
Does anyone know of a more elegant, organic looking way to create a particle pile up within Motion?
I wouldn't use an emitter. The particles in an emitter are either all moving or all stopped. You can't have some stopped and some moving making your idea of falling like rain and then piling up impossible.
Instead, I'd use a replicator. You can animate the replicator by using the Sequence replicator behavior to animate its position. Set the starting point of the animation off frame.