Quite an innovative system for the simple act of jumping. Having to time your orb bounce placements just right to gain maximum force to the next pedestal, or platform, is a real challenge. The 3D models and shader you used works very nicely all together.
While I didn't get very far, I quite enjoyed the slice of gameplay I was able to work with. I do think that adding your two sections on your Itch page (Controls and 'Before playing') into the actual game would benefit the player in giving them direction, because as it stands there's no real call to action within the game itself.
Still, regardless of my points, the game play can be fun, and with some more polish I think you've got a real winner on your hands with this one.