I imagine that is the video in query: Marble Marcher – A Fractal Physics Recreation.
We will discover the supply code within the description: MarbleMarcher supply code.
Wanting round in foremost, I see right here there’s an UpdateMarble methodology of the Scene class right here. Which in flip calls MarbleCollision.
There we see it makes use of two related strategies:
However it does ray marching, proper? I anticipated there could be some code that makes use of DE for ray marching, however there is not. So appeared for the place does ray marching occur, and – I ought to have anticipated this – it occurs within the GPU. Futhermore, the DE code has a counterpart in a shader right here. However NP doesn’t!
Thus, the sport shouldn’t be getting the closest level from a signed distance area. It’s utilizing an alternate area that provides the closest level (a 3D Vector) as a substitute of the space (a float worth).
The main points of this various area are particular of the fractal, in a similar way that you’ve got devoted capabilities for the signed distance area of various shapes.
