Real-Time Physics Simulation Forum

In order to track some external data, I need to be able to detect collisions between kinematic objects during simulation. I realize that, for efficiency reasons, Bullet does not do this, so I'm happy to change my local copy to allow it. Do any of you experienced Bullet programmers have advice for wh...

According to earlier posts (dating back to 2010 or before), "there is no method to pre-calculate the buffer size" for the btDefaultSerializer. Is this still the case? Is there a way to at least get an overestimate, so we can safely allocate the buffer for writing? I'm currently doing somet...

I wish to attach a spring between two rigid objects, but I wish the attachment points to not be the center of mass of each object. Rather, I would like the attachment point to be an arbitrary (user-defined) local offset from the C.O.M. I also need to support non-zero rest lengths. How do I do this? ...