Search Issue Tracker
Fixed in 2020.1.X
Fixed in 2019.3.X
Votes
0
Found in
2019.3.0a9
2019.3.0b7
2020.1
Issue ID
1192954
Regression
Yes
Stereo video becomes horizontally stretched when transcoded with "Keep Alpha" enabled
How to reproduce:
1. Open the attached "StereoVideo.zip" project
2. In the Project view, select "testvideo.webm"
3. In the Inspector, play the preview of the video
Expected results: The video plays and shows two images
Actual results: The video shows half of each image and is stretched
Reproducible with: 2019.3.0a9, 2019.3.0f1, 2020.1.0a15
Not reproducible with: 2018.4.35f1, 2018.4.13f1, 2019.2.14f1, 2019.3.0a8
Note: The issue does not reproduce is you disable "Keep Alpha" in the Transcode options
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
- ScrollView clips content when under an ancestor that has a filter set
- "Retrieving array element that was out of bounds" error thrown when attempting to remove a column from a Multi-Column List View
- Multi-Column List View horizontal scroll resets to left most position when scrolling vertically
- Floating License is lost for concurrent jobs
- Warning "Failed to insert item" is logged when Assigning Project to Organization's Project in the Project Settings
Resolution Note (fix version 2020.1):
Unity uses a split-alpha layout internally to add transparency support for codecs that don't natively support it such as H.264/H.265. This has the side-effect of doubling the image width which must be undone at display time. Addition of hardware-accelerated video decoding on Windows/UWP has broken this. Fixed the missing width compensation in the new code.