Sorry, I couldn’t get this to work. I don’t understand the EmitterInstance bit. It would throw an error if I cast to emitter, and would only let me cast to emitter class, but I couldn’t do anything with that.
When I create the beam source point (using Spawn Emitter at Location), the return type is a Particle System Component Reference, and it’s on this reference that I also create the beam’s end point (using Set Beam Target Point). Should it not be on this reference that I GET the target point’s location, rather than casting to another return type?
Sorry if I’m being thick. I’ve been stuck on this so long, I can no longer see the wood for the trees.