Game Physics

Box2D

Box2D is an open source physics engine that simulates boxes in 2D. I use this as a platform for testing and sharing ideas. This is the “Lite” educational version of Box2D. For the actively supported version, please visit the Box2D web-site.
Box2D Lite

Buoyancy

I wrote a chapter on buoyancy for Game Programming Gems 6. Here is the associated code.
Buoyancy

GDC 2009

This includes the integrator and constraint solver tutorials, Box2D_Lite, and integrator demos.
Slides and Demos

GDC 2008

This is a polished version of the GDC2007 presentation.
Slides

GDC 2007

I updated the physics tutorial for 2007. Here it is for your reading pleasure.
Slides

GDC 2006

Here’s my physics tutorial from the GDC. It includes PPT slides. Enjoy!
Slides

GDC 2005

I gave a presentation at GDC 2005 on some of the core algorithms I used in the physics engine I wrote at Crystal Dynamics. Some how I managed to get permission to share this information.
Slides
Paper