Hi there, I want to scale/change the size of a particle based on how many nearby particles there are. In my mind it feels like it should be very easy (I'm sure it is): for each particle check how many particles there are in a certain radius - use the number of particles to rescale them. So in other words if a particle is on it's lonesome it gets scaled quite small but if there are a fair few around it then leave it at about the initial particle size.
I've got mind block and can't figure this simple thing out. Help? Cheers, Anthony
