Search Issue Tracker

Fixed in 2021.1.X

Fixed in 2020.2.X

Votes

2

Found in

2020.2

2020.2.0b11

2021.1

Issue ID

1293091

Regression

Yes

Significantly lower FPS produced when using ExclusiveFullScreen mode compared to FullScreenWindow mode

Windows

-

Reproduction steps:
1. Open the project attached by the user
2. Build and run the "SampleScene" (File -> Build and Run)
3. Set "Max queued frames" field to 1
4. Observe the FPS
5. Click on the "fs" button
6. Observe the FPS

Expected result: Frame rate in 2020.2 isn't lower compared to 2020.1.
Actual result: Frame rate is 2020.2 is much lower than 2020.1:

2019.4.15f1 ~1700 vs ~500 (at first it's 2000 in fullscreen, but after a bit it drops)
2020.1.14f1 ~2000 vs ~600 (same as with 2019.4.15f1, it first starts at 2000, then drops to 1700)
2020.2.0b12 ~1200 vs ~250 (the difference seems stable, unlike previous streams)

Notes:
- Not reproducible with DX12, Vulkan (the FPS doesn't drop after switching)

  1. Resolution Note (fix version 2021.1):

    Fixed in 2021.1.0a9

  2. Resolution Note (fix version 2020.2):

    Fixed in 2020.2.0b14

Add comment

Log in to post comment

All about bugs

View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.