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Epic Zen Garden canvas has wrong blend mode |
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Issue descriptionChrome Version: 59.0.3067.0 Canary OS: OS X 10.12.3, MBP Retina 15" 2015 What steps will reproduce the problem? (1) Load https://s3.amazonaws.com/mozilla-games/ZenGarden/EpicZenGarden.html What is the expected result? - WebGL Canvas should look opaque. What happens instead? - WebGL Canvas looks 'additive' blended with the background as in attached screenshot. Issue reproduces with both Discrete AMD Radeon R9 M370X, and Integrated Intel Iris Pro GPU.
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Apr 13 2017
The WebGL view renders correctly in full screen mode, so this looks like a compositing issue. Perhaps a GL state leak.
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Apr 13 2017
I'm embarrassed to say this but this has been a known issue for about a month: Issue 699566 . The bug is that the RGB emulation on top of an RGBA IOSurface is being broken by this app's use of the BlitFramebuffer API, which doesn't respect the color mask. |
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Comment 1 by vmi...@chromium.org
, Apr 13 20171.4 MB
1.4 MB View Download