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Votes
0
Found in
2021.3.39f1
2022.3.31f1
6000.0.4f1
Issue ID
UUM-72970
Regression
No
EventSystem.current.RaycastAll returns incorrect results when moving a Canvas with "Screen Space-Camera" Render Mode
How to reproduce:
1. Open the “IN-77241_repro“ project
2. Open the ”SampleScene”
3. Enter Play Mode
4. Place the mouse on the right edge of the “TestImage“ GameObject
5. Press the Left Arrow key and observe the “TestImage“
Expected result: The GameObject stays green
Actual result: The GameObject flickers or becomes red
Reproducible with: 2021.3.39f1, 2022.3.31f1, 6000.0.4f1
Reproducible on: Windows 10
Not reproducible on: No other environment tested
Note: In step 4 the mouse should be positioned as far as possible from the center of the GameObject, however, enough to turn it green
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Resolution Note:
This is as designed because the RectTransform of the image is not computed at the time you make the call for the raycast. A simple fix would be to put the raycast logic in a coroutine that waits until the end of the frame.
You can read more about RectTransform here: https://docs.unity3d.com/Packages/com.unity.ugui@2.0/manual/class-RectTransform.html