Hi, I’m working on a rain system simulation with particle flow. I have my particles travelling down on the surface of my object with a “lock and bond” operator and I would like to send my particles to another event when they reach the limits of the geometry or when they reach a polygon facing down, so the particles can leave the object and fall down to the ground by gravity force.
I though that one method would be get the angle of the normals with a data operator and if they are pointing to the ground, use this to drive the particle behavior. I’m stuck at this point because I don’t know how to get this data… any help would be really apreciated.
I thought of other method by using a manually painted texture, but I would like to automatize the process.