Hello, Say I want to create some strands with a custom ICE node. I can make a generator output port which will produce the root positions for the strands and plug this into an Add Point node. I would then need to have another output port which produces the strand positions (an array of vectors per particle) and plug this into a Set Data node. However, since my node has a generator port, it cannot have a per-particle port too. My options are:
1. Make the output position port also a per-particle port, but then I don't know how to spawn the particles from it. I've tried adding a singleton port which outputs the number of particles, plugging this into a Build Array >From Constant node, passing that to Add Point, then setting the point positions and strand positions with Set Data. For some reason that didn't work. The ICE tree looked something like this, maybe my mistake is obvious to someone: http://i.imgur.com/oOBcS.png 2. Make both ports generator ports. If I do this, I can't plug the strand positions port into a Set Data node, because that requires a per-particle input. Is there a way to set data from a generator port? 3. Make two nodes, one with a generator port which produces the particle positions, another with a per-particle port which produces strand positions. However, I'd really like to avoid this, because the strands are computed in one place, and I'd have to somehow share the data between the nodes internally to avoid recomputing it, and the nodes would have a hidden dependency and so on. Any hints?
