Real-Time Physics Simulation Forum

Re: btStaticPlaneShape in Houdini-Bullet

2010-06-07T23:12:21+00:00

Ground plane now works in the houdini plugin. I realized I was trying to circumvent how bullet shapes were being created via the plugin, and it was really easy to implement when I wasn't trying to redo all of the work myself.

You can get a version of the bullet solver with groundplane support, as well as substeps(done by Seth Holladay), at http://www.gitorious.org/bullet-physics ... ics-solver.

Thanks for the help!

Statistics: Posted by goldleaf — Mon Jun 07, 2010 11:12 pm

Re: btStaticPlaneShape in Houdini-Bullet

2010-06-03T07:01:03+00:00

Sweet! I'll keep at it, and post here.

Statistics: Posted by goldleaf — Thu Jun 03, 2010 7:01 am

Re: btStaticPlaneShape in Houdini-Bullet

2010-06-01T02:02:46+00:00

It should work. You can try setting the world transform of the rigid body directly before adding it to the world:

Code:

btRigidBody* groundRigidBody = new btRigidBody(groundRigidBodyCI);btTransform tr; tr.setIdenty(); // set your own transform heregroundRigidBody->setWorldTransform(tr);state->m_dynamicsWorld->addRigidBody(groundRigidBody);

Thanks,
Erwin

Statistics: Posted by Erwin Coumans — Tue Jun 01, 2010 2:02 am

btStaticPlaneShape in Houdini-Bullet UPDATE - Done!

2010-06-09T15:45:06+00:00

I'm trying to get btStaticPlaneShape to work with the Houdini plugin. I've got it working at origin, but I can't move or rotate it. Is this even possible? To get it working, I'm using setEuler() to change the XYZ rotation settings from Houdini into Quaternions (variable 'qtn'), and passing that into the ground's btTransform. Does this look right?

Code:

btDefaultMotionState* groundMotionState = new btDefaultMotionState( btTransform(qtn),btVector3(0,-1,0)));btRigidBody::btRigidBodyConstructionInfo groundRigidBodyCI(0,groundMotionState,groundShape,btVector3(0,1,0));btRigidBody* groundRigidBody = new btRigidBody(groundRigidBodyCI);state->m_dynamicsWorld->addRigidBody(groundRigidBody);

Statistics: Posted by goldleaf — Fri Feb 26, 2010 2:00 am

Real-Time Physics Simulation Forum

Re: btStaticPlaneShape in Houdini-Bullet

Re: btStaticPlaneShape in Houdini-Bullet

Re: btStaticPlaneShape in Houdini-Bullet

btStaticPlaneShape in Houdini-Bullet *UPDATE - Done!*

btStaticPlaneShape in Houdini-Bullet UPDATE - Done!