P Pass ABBasic Parameter
P Pass AB
You can use PPassAB to compare, say, the positions of particles in two groups.
In this example PPassAB passes two groups of particles to PGetData which gets the particles’ positions; these are then subtracted one from the other.
This node is similar to the PPass node except that it enables you to pass two groups of particles to other nodes instead of just one group. This is especially useful when you want to compare the particles in one group with the particles in another, as illustrated above. You could alternatively use two PPass nodes but this is simpler. PPassAB is essential when controlling the PRepulse&Bounce node.