Fixed Update

Question 1

FixedUpdate()

Answer 1

Frame rate independent MonoBehaviour.FixedUpdate message for physics calculations

Question 2

MonoBehaviour.FixedUpdate

Answer 2

MonoBehaviour.FixedUpdate has the frequency of the physics system, it is called every fixed frame rate frame. Compute physics systems calculations after FixedUpdate. 0.02 seconds, 50 calls per second, is the default time between calls. Use Time.fixedDeltaTime to access this value

Question 3

The FixedUpdate frequency is more or less than Update

Answer 3

Alter it by setting it to your preferred value within a script, or navigate to, Edit, settings, time, fixed timestep, and set it there

Question 4

If the application runs at 25 frames per second, 25 fps, Unity calls it approximately twice per frame, Alternatively, 100 fps causes approximately two rendering frames with one FixedUpdate

Answer 4

Control the required frame rate and fixed timestep rate from time settings.
Use Application.targetFrameRate to set the frame rate