1. Sheep A Rigid Body Dynamics Engine François Beaune Thursday 7, 2002

2. Plan What is Sheep ? What is it for ? What is it able to simulate ? What is it unable to simulate ? The last word.

3. What is Sheep ? A library, a component of a larger piece of software: Sheep Game Logic Graphics Engine Networking

4. What is Sheep ? Simulates rigid body dynamics – any mechanical system that has: –Rigid bodies (solid objects) –Joints (like hinges) –Contacts and collisions, maybe with friction –Springs

5. What is Sheep ? Provides interactive simulation. Aimed at computer games and virtual reality worlds. Not suitable for industrial simulation.

6. What is Sheep for ? Improving gaming experience: –Makes games behave more realistically. –Makes interaction with the environment more intuitive. Opens up the way for construction games.

7. What is Sheep able to simulate ? Easy: a cannonball. Medium: a vehicle moving along on a bumpy ground. Difficult: a chain made of individual donut-shaped links.

8. What is Sheep unable to simulate ? Aerodynamics: a falling leaf. Particles: a rocket. Soft bodies: a marshmallow. Liquids. Hair and fur.

9. The last word Sheep is licensed under the GNU General Public License (GNU GPL): –Sheep can be used for free in any non-commercial product. –The source code is freely available. –You may modify or adapt Sheep to suit your needs.

10. Questions ?