- Three particular layers following 3 different Emitters which are going (by a wiggle) in Z space.
Problem is that the 3 layers are not interacting with eachother... : I cant seem to fix the intersecting you see in the picture above..
to get interaction int 3d space, you'll need to use lights as emitters and a single instance of particular.
it looks like you'd want to create 3 lights. each needs to be named with "Emitter" as a prefix -- ex: Emitter1, or EmitterRed, etc. and each with the wiggle expression used to drive your current emitter positions.
color will be determined by the color of each light, rather than the color property of the particle.
lights can control other particle properties, look up some tutorials that use lights for emitters for more info on that.