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Issue 773100 link

Starred by 4 users

Issue metadata

Status: WontFix
Owner: ----
Closed: Feb 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Mac
Pri: 2
Type: Bug



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Applying opacity to SVG element causes rendering glitch.

Reported by mariko.k...@gmail.com, Oct 9 2017

Issue description

UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.100 Safari/537.36

Example URL:
https://codepen.io/kosamari/pen/xXjxzw

Steps to reproduce the problem:
1. Create many SVG rect elements with fill color.
2. Apply opacity to each rect
3. Trigger paint in the page (i.e scroll)

Please see reduced test case here : https://codepen.io/kosamari/pen/xXjxzw

What is the expected behavior?
Rectangles display with slightly opaque color of its fill color & does not glitch when paint is happening in the page.

What went wrong?
- when opacity is applied, it does not display collect color.
- paint is triggered in the page, SVG graphics "glitch"
Please see screen recording for glitch behavior: https://youtu.be/TVs1r9kLEDo

Note: This issue is spotted on MacOS with hardware acceleration enabled. When hardware acceleration is turned off, the issue does not appear. 

(This issue was firs spotted on Github's contribution graph.)

Does it occur on multiple sites: Yes

Is it a problem with a plugin? No 

Did this work before? N/A 

Does this work in other browsers? Yes

Chrome version: 61.0.3163.100  Channel: stable
OS Version: OS X 10.12.6
Flash Version: Shockwave Flash 27.0 r0
 

Comment 1 by f...@opera.com, Oct 10 2017

Components: -Blink Internals>GPU>Rasterization
Cc: vamshi.k...@techmahindra.com
Labels: Needs-Feedback Triaged-ET
Unable to reproduce the issue on reported chrome version 61.0.3163.100 as we have checked it on Mac 10.12.6 which has Intel graphics of 5000 by enabling hardware acceleration.

@Reporter: Could you please confirm do we need to have Intel graphics 6000 in order to reproduce the issue? 

Thanks!

Comment 3 by bsalo...@google.com, Oct 11 2017

Cc: robertphillips@chromium.org

Comment 4 by ajha@chromium.org, Oct 17 2017

Labels: Needs-Triage-M61

Comment 5 Deleted

Comment 6 by p...@strive.digital, Nov 22 2017

This could be related, as it seems to be fixed by turning off HA.

https://codepen.io/anon/pen/bYvXdE

Chrome Version 62.0.3202.94 (Official Build) (64-bit)
Windows 10 64-bit
GTX 1060 - Driver 388.31

No problems in IE 11.64.16299.0, or Edge 41.16299.15.0

Sorry, I don't have a simpler example.
ha-on.png
35.9 KB View Download
ha-off.png
55.0 KB View Download
c#6: I opened  issue 788500  for your bug, as it is likely unrelated to this one.
Status: WontFix (was: Unconfirmed)
Mac triage: closing old issue without feedback or working repro steps.

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