I want to make an animation that explains laser scanning. It will consist of two videos. One of the videos is rotating duck with a laser on it. You can see the animation here. The animation is by me and the first of the two videos is already done.
The other is supposed to be a sort of point cloud that is generated by the scanning laser from the first video. So wherever the laser hits the rotating duck, there should spawn points.
What I have tried so far: I tried to make the point cloud with a particle system. It worked well except that I could only generate points over the entire duck faces and not only at the "laser line". Ideal would be to have an emitter that is the intersection between the rotating duck and a face.
I hope I stated my question clearly. Thanks