I'm trying to create a CharacterBody3D that can slide easily over surfaces. This character is floating, but will sometimes run into walls. I thought that there would be a PhysicsMaterial or something I could assign to it to make it glide, but I can't find anything like that on the object. I want just this one specific character to be slippery - other characters won't be slippery so I don't want to modify the physics properties of the surfaces being slid against.