Real-Time Physics Simulation Forum

Mickey, Ultimately I did it this way to avoid the check for btCompoundShape when calculating combinedRestitution/Friction. This format handles every combination compound or single shape without performing that check. This makes btRigidBody::setFriction/Restitution unnecessary. To maintain btRigidBod...

Ive written code to add per shape restitution and friction, though that I would sumbit for consideration to add to the main trunk (Would save us some merging in the future ;-). I have attached the effected files along with this post (did this work with 2.71) It does change the API in that btRigidBod...

sure, where is it?

Hi Erwin, Get a crash in btSimpleBroadphase::aabbOverlap() called from the first simulation step after removing and completely cleaning up a rigidbody. The m_nextFree and m_nextAllocated in one of the proxies are trashed. Do we need to purge something here, or is it a bug? Using Sweep and prune thin...

Hi Ewan, (1) Shallow penetration is not resolved with the above changes to btDefaultCollisionConfiguration the behaviour did not appear to change at all. I there something else I can try or you would like me to do?

Thanks gave it a try with 2.62 and it made no difference to the jitter on world y axis. I made sure to decrease the size of the faces as you mentioned as well. I will live with it for now if its going to be investigated. Most obvious when the camera is moved in close and traces the path of the movin...

Hi Erwin, I have attached the source for basic demo, if you view the spheres y position as it moves across the triangle mesh you will notice the y component often fluctuates below the expected y value (terrain.y + radius) but never over the expected value. I hacked some changes into DemoApplication....

Hi there, I am looking at implementing Bullet as a replacement for another physics engine we currently use in our game engine. You will probably hear more from me on the SCE forums if we decide to go ahead with it. So I have set up a simple physics scene where I have used a static triangle mesh as w...