| Box2D 2.3.0 A 2D Physics Engine for Games

### - r -

- RayCast() : b2BroadPhase , b2ChainShape , b2CircleShape , b2DynamicTree , b2EdgeShape , b2Fixture , b2PolygonShape , b2Shape , b2World
- RebuildBottomUp() : b2DynamicTree
- Refilter() : b2Fixture
- ReportFixture() : b2QueryCallback , b2RayCastCallback
- Reset() : b2Timer
- ResetFriction() : b2Contact
- ResetMassData() : b2Body
- ResetRestitution() : b2Contact