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Found in

2022.3.68f1

6000.0.62f1

6000.2.12f1

6000.3.0b10

6000.4.0a4

6000.5.0a1

Issue ID

UUM-126853

Regression

No

The Player starts flickering and breaking when the OpenGLCore Graphics API is used, and the Player is unfocused

-

How to reproduce:

  1. Open the “OpenGLFlickerBug.zip“ project
  2. Build and run the project
  3. Unfocus the Player (Not sure if this is important)
  4. Wait for a few minutes
  5. Observe the Player

Expected result: Player renders as usual
Actual result: The view flickering starts after some time

Reproducible in: 2022.1.0a1, 2022.3.68f1, 6000.0.62f1, 6000.2.12f1, 6000.3.0b10, 6000.4.0a4, 6000.5.0a1

Reproduced on: Windows 11 Pro (GPU: NVidia RTX 3500 Ada), driver version: v581.97
Not reproduced on: Windows 11 Pro (GPU: NVidia RTX 4070), driver version v581.80

Notes:
- Sometimes the flickering stops out of nowhere
- This might be specific to Ada type NVidia GPUs (co-tester also mentioned that this might be related to Driver version as well: should be v581.15 or greater)
- Specific to OpenGLCore (OpenGL 4.5) Graphics API, all other Graphics APIs yield expected results
- Sometimes the issue gets resolved by some keyboard input (even when the Player is unfocused)
- The flickering progressively worsens seemingly every minute or so until it snaps back to normal. Afterward, the issue doesn’t repeat

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