CSS: transform: skew: two very slim white lines
Categories
(Core :: Graphics, defect, P5)
Tracking
()
People
(Reporter: r.rudolph, Unassigned)
References
Details
Attachments
(4 files)
User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:70.0) Gecko/20100101 Firefox/70.0
Steps to reproduce:
open attachment
Actual results:
two very slim white lines in the trapezoid
(visible when looking at the display from different angle of views)
Expected results:
there should be no slim white lines at all
(in Chromium there are no slim white lines)
Comment 1•4 years ago
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I don't see slim white lines, so this is probably a graphics issue.
Can you attach your about:support?
see the asked attachment:
about_support.txt
answer to Emilio Cobos Álvarez:
indeed, on a tablet in Firefox, I also can't see the two slim lines
this is a screenshot of the computer, so you can see the two slim white lines inside the trapezoid; both white lines are going from left to the right
side by side comparison:
left: Firefox: two slim white lines inside the trapezoid
right: Chromium: no white lines inside the trapezoid
Comment 6•4 years ago
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Looks like slim black lines to me? I see it on the left though.
jrmuizel: Do you know who to route this to? Basic layers, css transform artifact?
Comment 7•4 years ago
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It looks like this happens with Basic layers and not WebRender. It's likely a somewhat fundamental artifact caused by how we draw borders interacting with 3d transforms.
Since we don't plan on supporting this path in the long term we're unlikely to fix this before we get WebRender everywhere. If you want to try out WebRender now you can by setting gfx.webrender.all=true in about:config
Updated•4 years ago
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Updated•2 years ago
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Updated•1 year ago
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Description
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