Hello, this may be a fun challenge for someone with cool results.
Below is a Playground of a rectangle orbiting a cube.
How to make the rectangle rotate in parallel to cube surface? (orthogonal).
http://www.babylonjs-playground.com/#IHBB35#1
Details: a cube is rotating on the X Axis, a rectangle has a Y position change off a Raytrace, emulating gravity, like an old time record-player.
Goal: rotate rectangle to be parallel to rotating cube.
Guess: Perhaps a specialized rotate from ray.direction to mesh.rotate.
Problem: Half the time the rotations are correct (