Real-Time Physics Simulation Forum

On http://bulletphysics.org/mediawiki-1.5. ... _The_World at the bottom it says:

When you pass Bullet maxSubSteps > 1, it will interpolate movement for you. This means that if your fixedTimeStep is 3 units, and you pass a timeStep of 4, then it will do exactly one tick, and estimate the remaining movement by 1/3.

But I also saw this advertised as a feature of Motion States. Does this mean you can get the interpolation behavior without actually using Motion States? Perhaps Motion States are just re-using this feature of the step simulation implementation?

If you check the code for btDiscreteDynamicsWorld, you'll see it internally uses motion states to do the interpolation