C++ collision detection: Use Bullet3Collision, etc. or the Bullet 2.x API?

[wbthomason]

For a new C++ project using Bullet only for collision detection (i.e. no dynamics), is it better to use structures from the src/Bullet3Collision, src/Bullet3Common, etc. directories, or to use the "old" structures (e.g. btVector3 instead of b3Vector3, btDbvtBroadphase instead of b3DynamicBvhBroadphase, etc.)?

[hermestrimegistus]

I really don't know the difference myself. What is btVector3 and what is b3Vector3? Which is meant for programmer's use and which is there for api designer?

[phcerdan]

I would like to clarify this too. @wbthomason did you figure it out?

[wbthomason]

@phcerdan unfortunately not; I had to get my project using Bullet finished quickly, so I didn't spend much time after this issue looking into the Bullet3 options. I just used the structures from the old C++ documentation.

I too would still be interested in clarifying this for using Bullet moving forward.

[Satya758]

#1401 has information.