03-12-2020, 03:35 PM
You can put a Position Object operator after the Particle Physics operator and set it to closest point mode. That should snap particles back to the surface after spreading them out. It's not as nice as snapping them to the surface after each iteration of relaxation, as the Point Relax method in Houdini does it....but it's an option. For better results you could also instance the Particle Physics operator a few times, and then instance the Position Object operator a few times, and stagger them. So PP, then PO, then PP, then PO, etc. That's a (clunky) way of simulating a few iterations of relax where points are snapped back to the surface after each iteration.