Search Issue Tracker
Won't Fix
Votes
0
Found in
2019.1.0a3
2019.4
2019.4.8f1
2020.1
2020.2
Issue ID
1272405
Regression
Yes
[Mac] Application with a transparent background will become black when the application's window size is changed
How to reproduce:
1. Open the user's attached "TransparentalWindowSample2018.zip" project
2. Open the "SampleScene" Scene
3. Go to File -> Build And Run
4. Press the "Enable Transparent" button in the application
5. Re-size the application's window
Expected result: The application's background stays transparent
Actual result: The application's background becomes black
Reproducible with: 2019.1.0a3, 2019.4.9f1, 2020.1.4f1, 2020.2.0a19
Not reproducible with: 2018.4.26f1, 2019.1.0a2
Could not test with: 2020.2.0a20-2020.2.0a21 (The background does not become transparent after "Enable Transparent" button was pressed)
Notes:
- The plugin used by the user is only supported on Mac OS, so couldn't test if this reproduces on Windows OS
- Make sure "Windowed" is checked in the Configuration window in older Unity versions (2018.4, 2019.1)
Add comment
All about bugs
View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.
Latest issues
- Texture2D hash changes inside of an AssetBundle when rebuilding a SpriteAtlas bundle with an empty AssetPostprocessor Script enabled
- Aniso Level still applies when Generate MipMap is disabled in Texture Import Settings
- Mipmap Limit Groups long names are not truncated when creating a new Mipmap Limit Group with a long name
- “ArgumentException: Invalid double parameter.” error is thrown when Infinity is typed into the Fixed Timestep field
- GameObject becomes gray when using HDRP and STP together on macOS
Resolution Note (2020.2.X):
A possible workaround for this issue is to track the resize event and set the opacity value as desired on resize. Setting window transparency is not a Unity feature, so behavior changes may be seen across versions if trying to set NSWindow properties manually.