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Fixed in 2020.1.X
Fixed in 2019.3.X
Votes
3
Found in
2019.3.0a11
2019.3.0f3
2020.1
Issue ID
1206495
Regression
Yes
Major IMGUI performance regression in 2019.3.0a11 when compared to 2019.3.0a10
How to reproduce:
1. Open the attached "1206495.zip" project
2. Open the "test" Scene
3. Open the Profiler window and Enter Play Mode
4. In the Profiler window and in the Module details panel switch the selection from Timeline to Hierarchy
5. Expand the PlayerLoop list and the GUI.Repaint list
6. Observe the Total Property
Expected result: A little or no increase in the total amount of time spent on a particular function (as a percentage) that averages 11 - 13%
Actual result: A massive increase in the total amount of time spent on a particular function (as a percentage) that averages 60 - 70%
Note: The method that was tested with is called "OnGUI()" inside the "Test" Script that is attached to the "Main Camera" GameObject.
Reproducible with: 2019.3.0a11, 2019.3.0f4, 2020.1.0a17
Not reproducible with: 2017.4.35f1, 2018.4.15f1, 2019.2.17f1, 2019.3.0a10
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Resolution Note (fix version 2020.1):
fixed in: 2020.1.0a22, backported to: 2019.3.0f6