Sheep

A Rigid Body Dynamics Engine

François Beaune

Thursday 7, 2002

Plan

• What is Sheep ?

• What is it for ?

• What is it able to simulate ?

• What is it unable to simulate ?

• The last word.

What is Sheep ?

• A library, a component of a larger piece of

software:SheepSheep

Game LogicGame Logic

Graphics EngineGraphics Engine

NetworkingNetworking

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

What is Sheep ?

• Provides interactive simulation.

• Aimed at computer games and virtual

reality worlds.

• Not suitable for industrial simulation.

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.

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.

What is Sheep unable to simulate ?

• Aerodynamics: a falling leaf.

• Particles: a rocket.

• Soft bodies: a marshmallow.

• Liquids.

• Hair and fur.

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.

Questions ?