Search found 14 matches
- Mon May 21, 2012 12:53 am
- Forum: General Bullet Physics Support and Feedback
- Topic: Multi-threaded collisions issue
- Replies: 0
- Views: 2470
Multi-threaded collisions issue
Hi there, I'm trying to multi-thread the collision detection. I do have the code in place (using pthreads on Linux), based on MultiThreadedDemo. While the results are correct, it doesn't multi-thread unfortunately. I tracked it down to the SpuGatheringCollisionDispatcher not supporting proxies of ty...
- Fri Mar 16, 2012 5:50 am
- Forum: General Bullet Physics Support and Feedback
- Topic: Soft body module virtual methods
- Replies: 2
- Views: 4505
Re: Soft body module virtual methods
You got a point there.
- Wed Mar 14, 2012 10:56 pm
- Forum: General Bullet Physics Support and Feedback
- Topic: Bug - btSoftBody::updateConstants() and area calculations
- Replies: 8
- Views: 6735
Re: Bug - btSoftBody::updateConstants() and area calculation
The rest length modification in updateConstants() stung me as well. I ended up disabling the updateConstant call by setting variable m_bUpdateRtCst to false before calling step simulation. However, that means I have to replicate everything updateConstants() does except for changing the rest lengths....
- Mon Mar 12, 2012 5:22 am
- Forum: General Bullet Physics Support and Feedback
- Topic: Soft body module virtual methods
- Replies: 2
- Views: 4505
Soft body module virtual methods
Hi, it would be really great if the classes in the softbody module could have virtual methods throughout so you can tweak things by deriving off the bullet classes. As it is right now I don't see any way of getting stuff to work the way I need it to work without modifying the library code itself. Th...
- Tue Feb 07, 2012 6:16 am
- Forum: General Bullet Physics Support and Feedback
- Topic: Ultimate Breakout uses bullet physics
- Replies: 3
- Views: 10072
Re: Ultimate Breakout uses bullet physics
It's probably too late now, but try
#undef None
before including the soft body stuff.
#undef None
before including the soft body stuff.
- Mon Dec 19, 2011 9:37 pm
- Forum: General Bullet Physics Support and Feedback
- Topic: Rigid body deactivation time threshold
- Replies: 1
- Views: 2976
Rigid body deactivation time threshold
Is there any way to configure the deactivation time threshold for rigid bodies? Looks like this his hard-coded to 2.0f?
- Fri Nov 25, 2011 3:40 am
- Forum: General Bullet Physics Support and Feedback
- Topic: Building and running OpenCL demo in Nvidia platform
- Replies: 8
- Views: 10120
Re: Building and running OpenCL demo in Nvidia platform
Same issue here:
make[2]: *** No rule to make target `BulletMultiThreaded/vectormath/scalar/cpp/mat_aos.h', needed by `all-am'. Stop.
make[2]: Leaving directory `[...]/bullet-2.79_64/src/src'
make[1]: *** [all-recursive] Error 1
Does anyone have a solution for this?
make[2]: *** No rule to make target `BulletMultiThreaded/vectormath/scalar/cpp/mat_aos.h', needed by `all-am'. Stop.
make[2]: Leaving directory `[...]/bullet-2.79_64/src/src'
make[1]: *** [all-recursive] Error 1
Does anyone have a solution for this?
- Thu Nov 24, 2011 11:32 pm
- Forum: General Bullet Physics Support and Feedback
- Topic: Contact solver parameters explained
- Replies: 1
- Views: 5105
Contact solver parameters explained
Hello, I'm trying to understand the various contact solver parameters. What does each parameter do exactly? Thanks, Chris btScalar m_tau; btScalar m_damping; //global non-contact constraint damping, can be locally overridden by constraints during 'getInfo2'. btScalar m_friction; btScalar m_timeStep;...
- Tue Nov 08, 2011 12:22 am
- Forum: General Bullet Physics Support and Feedback
- Topic: btGeneric6DOFConstraint parameters?
- Replies: 0
- Views: 2100
btGeneric6DOFConstraint parameters?
Hi there,
would be awesome if someone could shed some light on the parameters for configuring a generic 6dof constraint. In particular I'm wondering about these:
-frameInA
-frameInB
-useLinearReferenceA
and, last but not least,
-useFrameOffset
Thanks,
Chris
would be awesome if someone could shed some light on the parameters for configuring a generic 6dof constraint. In particular I'm wondering about these:
-frameInA
-frameInB
-useLinearReferenceA
and, last but not least,
-useFrameOffset
Thanks,
Chris
- Thu Nov 03, 2011 9:00 pm
- Forum: General Bullet Physics Support and Feedback
- Topic: Documentation
- Replies: 1
- Views: 2850
Documentation
Hi there, I came to realize that the documentation of bullet is insufficient. The pdf file is a great first read but it merely scratches the surface. Doxygen comments inside the code are quite sparse. The Wiki only discusses certain topics. The examples are great for reference but only present a sma...
- Thu Nov 03, 2011 8:32 pm
- Forum: General Bullet Physics Support and Feedback
- Topic: btGeneric6DofSpringConstraint damping
- Replies: 3
- Views: 5866
Re: btGeneric6DofSpringConstraint damping
+1jarno wrote:
For one thing it is misnamed, given that setting it to 1 gives no damping and 0 is fully damped. I usually end up setting it to a very small value (like 0.001), so it seems to be more like the reciprocal of some sort of damping coefficient.
---JvdL---
- Thu Nov 03, 2011 8:27 pm
- Forum: General Bullet Physics Support and Feedback
- Topic: LinearJoint, HOW, please HELP?
- Replies: 5
- Views: 10441
Re: LinearJoint, HOW, please HELP?
"split, cfm and erp? How I'm supposed to know what these mean if no documentation on this is present at all?"
+1
+1
- Thu Oct 27, 2011 12:06 am
- Forum: General Bullet Physics Support and Feedback
- Topic: Bullet development updates
- Replies: 15
- Views: 20844
Re: Bullet development updates
Having worked with the bullet library for about two weeks full-time I'd also like to chime in to the need for professional level documentation. The odd comment here and there is just not sufficient. Every class, method and member should have proper Doxygen compatible documentation. Please take a loo...
- Fri Oct 14, 2011 12:12 am
- Forum: General Bullet Physics Support and Feedback
- Topic: Collision detection between two btBvhTriangleMeshes
- Replies: 10
- Views: 11716
Re: Collision detection between two btBvhTriangleMeshes
I ran into the same issue, GImpactMeshShape won't draw in debugDraw. Can anyone offer a solution?
Thanks
Update: I got AABB's drawing correctly after calling btGImpactMeshShape::udpateBounds().
Thanks
Update: I got AABB's drawing correctly after calling btGImpactMeshShape::udpateBounds().