vSyncCount 3 and 4

Unity Engine
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1

Hi,

The documentation on QualitySettings.vSyncCount states that:

I’ve done some testing on Windows using a 144hz monitor and Application.targetFrameRate = -1.

Here are my results:

vSyncCount = 0, unlocked framerate ~900 fps. (as expected.)
vSyncCount = 1, locks framerate to 144. (as expected.)
vSyncCount = 2, locks framerate to 72. (as expected.)
vSyncCount = 3, locks framerate to 60. (I was expecting 48.)
vSyncCount = 4, locks framerate to 60. (I was expecting 36.)

Similarly on a 60hz monitor I would expect:

vSyncCount = 0, unlocked framerate.
vSyncCount = 1, locks framerate to 60.
vSyncCount = 2, locks framerate to 30.
vSyncCount = 3, locks framerate to 20.
vSyncCount = 4, locks framerate to 15.

Questions:

  1. Is this a bug, or have I misunderstood what vSyncCount option 3 and 4 is intended for?
  2. Might there be another option that prevents the framerate from going below 60?
2

Nevermind it was an issue with the script I found for meassuring FPS…