Call this function to set the size and position of the world that the physics simulation will run in. This may affect the speed and memory usage of culling algorithms. The size of the world should be made only as big as necessary.
worldAABB.v3Center.x = 0;
worldAABB.v3Center.y = 0;
worldAABB.v3Center.z = 0;
worldAABB.v3Extent.x = 1000.0f;
worldAABB.v3Center.y = 1000.0f;
worldAABB.v3Center.z = 1000.0f;