Force constant framerate for reording purpose.

So how can I force unity to do Update and fixed update with constant deterministic deltaTime and fixedDeltaTime.

I'm ok with slowdowns I need it for game-play recording, I need to be able to specify this frame-rate.

 

Is this it?
https://docs.unity3d.com/ScriptReference/Time-captureFramerate.html
https://docs.unity3d.com/ScriptReference/Time-captureDeltaTime.html

(also see: https://docs.unity3d.com/Manual/TimeFrameManagement.html )

 

Unity can't be forced to run these at an exact time. Unity makes a best effort to run FixedUpdate at the right time, but since it runs on the same thread as much of the rest of the engine it cannot guarantee to run at the exact time it is expected to. FixedUpdate does not interrupt other code running on the same thread, and if that other code takes too long then FixedUpdate will be called late.

If you need something to have exact timings, I'd suggest doing it on your own thread.

 

This is what you want. It will force Unity to pretend your game is running at a different frame rate from what it actually is. Which means you can record nice 60fps video, even if your game is actually running at 2fps.