hi everyone,
 
	i am trying to slide particles in the inside of a geometry (a polygon box in this case) 
 
	i want to get the particles freely slide along the walls (or even come on and off the walls because of the popattract force), which i managed to do with the two nodes popcollisiondetect and popproperty, however it doesn't quite slide... it goes past outside the box. especially if i increase the popforce amplitude. 
	to keep them sliding (and inside the box) i have to raise the "cling" in popproperty node to very high value which almost makes them look stick rather than slide. 
	However, a sphere instead of a box works fine.... the pighead somewhere in between the box and the sphere. anyone knows where i should tweak things?
 
	FYI the settings for dopnetwork is same for all the three images (1a,1b,1c)
 
	I would appreciate any help. 
 
	PS: BTW how do i i make the quality of a simulation more precise (increase steps per frame) globally.
 
	 
 
	m.