Character Controller Move( ) not behaving as expected

Hey everyone,

While implementing the gravity & jump on a character controller-based script, I stumbled across some weird fast jitter. I decided to isolate the problem and still can't understand why is this not behaving as expected

In the following script I'm moving (accelerating) the character based on the Physics gravity value, theoretically shouldn't this behave exactly like a rigidbody with zero drag (while falling)?


As you can see below (the capsule w/ the testMov script and the sphere w/ a zero drag rigidbody)


If I use the characterController's velocity rather than my own velocity parameter the result becomes even faster.
Finally I have tried hardcoding this speed factor to behave as expected (let's say 0.0065x the default gravity acceleration) and if I restart the editor or build the project this factor no longer behaves expected.

Am I missing something trivial or is this a bug, if anyone could shed some light on the problem I would appreciate. :/


(Tried on Unity 2020.3.ish)

 

Unlike SimpleMove() which takes a velocity as an argument, CharacterController.Move() takes a distance. So you need to multiply by Time.deltaTime when you call it. Something like this:

Code (CSharp):

1. character.Move(velocity * Time.deltaTime);

Hope that helps!