Was it always this wobbly?

[CodeRonnie]

I’m not sure if this is exactly what you’re experiencing, but there were some issues with deltaTime on previous versions.

Here is the original thread where the issue was first flagged in 2016 and dragged into the light by the community.

Time.deltaTime Not Constant: VSync CameraFollow and Jitter

I’m running with VSync at a constant 60fps which is a calculated dt of 16.667ms (blank project with just a cube). When I call Time.deltaTime it varies wildly. Time.deltaTime can be as low as 2ms and as high as 31ms. The deltaTime “averages” out to be ~16.67ms. Why does Time.deltaTime vary wildly? Shouldn’t it be a constant 16.667ms assuming the Update() loop has minimal computations and lots of idle time? My understanding is the Update loop runs as fast as possible (and will have variable Tim…

And here is the official blog post about the fixes that were implemented in 2020.2.

Fixing Time.deltaTime in Unity 2020.2 for smoother gameplay: What did it take?