An FPS scene with fully 3-D collision for multiple characters and a laser beam that bounces off walls. Simplified project file included for 3-D collision.
Thank you so much man! It'll help me a lot with my own game. I also want to implement a ray cast, though not visually as a laser and not necessarily with reflections. I just want the player to be able to select 3D objects while playing with a first-person camera, so I'll check the first thing the ray hits :)