Given how widespread the usage of Box2D has been over the last decade+, I truly hope the creator has seen some form of financial benefit from it. His work is awesome and has benefitted the gamedev community immensely.
He mentions Jolt physics in this blog. That’s another example of “holy shit look at what one person can do”. I’ve found myself wishing I had Unity source so I could performantly inject that engine instead of being stuck with PhysX.
Jolt physics is an amazing piece of work way above my level of understanding, but as someone who loves physics in video games I always enjoy learning a bit about how it all works:
He mentions Jolt physics in this blog. That’s another example of “holy shit look at what one person can do”. I’ve found myself wishing I had Unity source so I could performantly inject that engine instead of being stuck with PhysX.