Under the ANGLE_D3D11 backend in Windows Chrome, the official demo displays random flickering noise.

[rchee]

Describe the bug Under the ANGLE_D3D11 backend in Windows Chrome, the official demo displays random flickering noise. This appears to be a graphical glitch that occurs at irregular intervals.

To Reproduce Steps to reproduce the behavior:

1. Set the backend to ANGLE_D3D11(by default).
2. Open the official demo on Chrome in Windows. https://google.github.io/filament/webgl/suzanne.html
3. Observe the screen for flickering noise.

Expected behavior The demo should run smoothly without any flickering or noise. The graphics should be clear and steady.

Screenshots

Logs FEngine (32 bits) created at 0x16ff30 (threading is disabled) filament.js:8 [WebKit], [WebKit WebGL], [OpenGL ES 3.0 (WebGL 2.0 (OpenGL ES 3.0 Chromium))], [OpenGL ES GLSL ES 3.00 (WebGL GLSL ES 3.00 (OpenGL ES GLSL ES 3.0 Chromium))] filament.js:8 Feature level: 1 Active workarounds: filament.js:8 Backend feature level: 1filament.js:8 FEngine feature level: 1content-script.js:2 SiteAdapters Retry 1/10: not found content-script.js:2 SiteAdapters Retry 2/10: not found content-script.js:2 SiteAdapters Retry 3/10: not found content-script.js:2 SiteAdapters Retry 4/10: not found content-script.js:2 SiteAdapters Retry 5/10: not found content-script.js:2 SiteAdapters Retry 6/10: not found content-script.js:2 SiteAdapters Retry 7/10: not found content-script.js:2 SiteAdapters Retry 8/10: not found content-script.js:2 SiteAdapters Retry 9/10: not found content-script.js:2 SiteAdapters Retry 10/10: not found content-script.js:2

Desktop (please complete the following information):

• OS: Windows NT 10.0.19045
• Chrome version:Chrome/120.0.6099.130
• GPU: NVIDIA GeForce GTX 1060 6GB
• Backend: ANGLE_D3D11

Additional context This issue seems to occur randomly and does not appear to be tied to any specific actions or inputs within the demo. Sometimes it can be observed upon refreshing the page, or when resizing the window. Once it starts flickering, resizing the window might potentially restore it to normal.

Chrome about:gpu page about-gpu-2023-12-28T04-06-11-023Z.txt

[z3moon]

Took a look at the sample and could reproduce it. Refreshing sometimes turns it to normal as the author mentioned.

Also this parquet demo has the same issue. https://google.github.io/filament/webgl/parquet.html