Real-Time Physics Simulation Forum

I have not much problem with current stepSimulation. But reading these posts I think it could be improved this way: 1) change stepSimulation to have only timeStep (1st param) 2) make maxSubSteps (2nd param) and fixedTimeStep (3rd param) set once (setter or the SteppingInfo), especially when it's not...

New version available on JBullet homepage . Changes in release 20080803: - Upgraded LWJGL to 2.0rc1 - Added UniformScalingShape - Improved JavaDoc generation - Removed dependency on JStackAlloc in demos - Added support for moving triangle meshes - Added MovingConcaveDemo - Optimized allocation of co...

I'm having trouble running the jBullet demos. I know it is something I'm doing wrong. Exception in thread "main" java.lang.Error: not instrumented at cz.advel.stack.Stack.alloc(Stack.java:110) at com.bulletphysics.collision.broadphase.AxisSweep3Internal.<init>(AxisSweep3Internal.java:90) ...

Did you use extern "C" for JNI functions Yes, maybe that's the problem? No, that's how it should be. Try posting error messages you are getting. For XML parsing I would either choose JAXP since it is a std. interface, implement some sort of interface to implement for the xml parser of use...

I have problem with linking in linux with either gcc or g++. When choosing one then the bullet symbols are not found, if I choose the other the java symbols are not found. Did you use extern "C" for JNI functions? I've seen JBullet and would like to use it, but I need collada support and ...

Hi, have you seen JBullet ? It's pure Java port of Bullet (not binding). If yes and wish to have binding as well, I initially did a binding, but I didn't like to have to create multiple builds for all platforms (and testing them), wanted tighter integration with Java to use internal stuff and genera...

New version available on JBullet homepage . Changes in release 20080716: - Fixed bug in conversion between planes and point cloud - Added DynamicControlDemo (contributed by Olivier OUDIN) - Changed package from "javabullet" to "com.bulletphysics" - Bug fix for constructor with pi...

... I also suggest you use the Bullet's SVN repository for the java port ? I prefer to use Monotone VCS. I might add automatic snapshot generation whenever new patch is available, if that would be easier for contributors. But I think that Monotone is easy to use, for the common task of getting late...

Erwin, I have a small question for you. It's about using "com.bulletphysics." Java package for JBullet. Currently there is temporal "javabullet." which I would like to change as it's against Java conventions. The usage of your domain is purely convention for distincting different...

New version available on JBullet homepage . Changes in release 20080311: - Added some JavaDoc documentation - Added RaycastVehicle and VehicleDemo - Refactored accessing of vertex data - Added CylinderShape - Implemented ray/trimesh hit detection - Added applet demo - Added binaries and dependant li...

Erwin Coumans wrote:I just tried it on my Intel Mac OSX, and both Safari and Firefox just show a black screen. Are there any settings to tune, to make it work?

Try it again, I've fixed minor bug that caused it not to run in Java 5.

I've created applet version of JBullet demos that uses software rendering.

You can see it in action here:
http://jbullet.advel.cz/applet

Erwin, while I was working on the port I've found a small bug in original Bullet. In btCollisionWorld::rayTestSingle on line 314 (in 2.67), there is cast to btTriangleMeshShape instead of just btConcaveShape. I've found it when btStaticPlaneShape was encountered, as it throwed ClassCastException in ...

Unfortunatelly there is no way to have OpenGL rendering without full permissions. Actually there is one limited way. Java2D can use OpenGL pipeline for rendering, and can be enabled in Webstart even for unsigned applications (but not in applets before Java 6uN "the consumer JRE" will be a...

That is really great to be able to run JBullet in a browser, thanks for the effort. I put up a link on the Bullet frontpage: http://www.bulletphysics.com/Bullet/wordpress/ Oh, thanks :) Just curious, what was the issue that caused the jitter in previous versions? The cause was that in Java's Vecmat...