Thanks to Casey we now have a new reference page for hint() and related arcane constants:
https://processing.org/reference/hint_.html
This is specially useful for those working with P3D, and otherwise for people who want to fine tune the drawing quality/performance balance.
This is really great news – and great clear documentation. It seems well structured and easy to read with plenty of context.
Implicitly the listed hints switch things from the default state, although that might be nice to say explicitly. Some hints have their complement listed – but most don’t, for example DISABLE_OPTIMIZED_STROKE doesn’t mention whether you can later ENABLE_OPTIMIZED_STROKE, or if it is a one-way trip.