Physics Simulation Forum

Jezek announced a new release of JBullet, a Java port of Bullet. You can check the demos on-line:

Basic Demo:
Generic Joint Demo:
Bsp Demo:
Static Concave Mesh Demo:

Notes: requires Java 5.0, needs permissions for OpenGL rendering
For more information, visit the JBullet website at http://jbullet.advel.cz

Bullet 2.67 is available now from http://code.google.com/p/bullet/

• Add support for fast batch raycasting on SPU / BulletMultiThreaded
• Add support for 16 and 32-bit indexed triangle meshes in SPU / BulletMultiThreaded version.
• Improved COLLADA Physics export snapshot from any Bullet btDynamicsWorld. Saving the physics world into .dae (xml textfile) can be useful for debugging etc.
• Initial version for Character Control Demo
• Bugfixes in ConvexCast support against the world.
• Added btCapsuleShapeX/Z
• Added btTypedUserInfo, useful for serialization
• Added Stan Melax Convex Hull utility library in Extras/ConvexHull. This is useful to render non-polyhedral convex objects, and to simplify convex polyhedra.

The SVN repository is sychronized with the existing sourceforge repository.

Development is ongoing, and outstanding issues will roll into upcoming releases.

Feedback in this forum issue: http://www.bulletphysics.com/Bullet/phpBB3/viewtopic.php?f=18&t=1947

The slides for the Game Developers Conference 2008 Tutorial, Physics for Game Developers, on parallel SPU physics are available for download now.

• GDC08_Erwin_Coumans_ParallelPhysics.pdf(1.5 Mb)
• Online Presentation

For feedback please use the

Physics Simulation Forum

Erwin

Following link provides some physics related sessions during upcoming GDC. There will be some demos of Bullet physics at the showfloor. It is a nice occasion to meet up, so if you are around, please get in touch!

More details here.

One of the distinguished projects at the Department of Computing at Imperial College London is about real-time physics simulation, using the Bullet physics library as case study.

• Ian Ballantyne wrote the following paper: http://www3.imperial.ac.uk/pls/portallive/docs/1/20673698.PDF

At a first glance it looks like an interesting read!

http://www.iphone.r4m0n.net and http://www.installerapps.com/2007/12/05/iphysics/

The new CUDA 1.1 SDK includes some new physics demos including particle systems, FFT-based 2D fluids, and n-body gravitational simulation, all running on the GPU.

http://developer.download.nvidia.com/compute/cuda/1.1-Beta/x86_website/Physically-Based_Simulation.html

Thanks to Simesgreen for the link

The project contains a small library that connects the Bullet Physics Engine to the Horde3D Graphics Engine.

The source code contains also a little example application and a patch for the Collada Converter of the Horde3D Engine version 0.11 that allows the usage of basic features of the Collada Physics extension.

This text is also available in german. A local cached copy of the source/demo is available too.
http://mm-werkstatt.informatik.uni-augsburg.de/project_details.php?id=43

NVidia released a VisSim demo to showcase NVSG. They showed this demo in the NVidia booth at SIGGRAPH 2007 in San Diego.

Quote from the website: “The demo illustrates the integration of Physics (Bullet physics system), Audio (OpenAL), and Graphics through Producer, Cal3D, FreeType and of course NVSG. Bullet, OpenAL and Producer are all open source projects that are available from their respective repositories on the Internet. Nvidia and the NVSG team do not endorse any of these projects specifically, but they have worked very well for us and we would certainly recommend them. The source code to the VisSim demo is available below.”

http://developer.nvidia.com/object/nvsg_home.html

“Most interesting of the desired features, however, is the development of Capcom’s own physics system to replace the Havok middleware that it currently uses. ”

Explaining the decision, the page states that “Although middleware might increase efficiency, language discrepancies, response times for support/bugs and the loss of understanding on how our entire engine is structured leads us to feel that we get better results in a shorter period by developing our own engine.”

http://www.developmag.com/news/28512/Capcom-looking-to-expand-in-house-engine