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Issue 634830 link

Starred by 2 users
Status: WontFix
Owner:
█ trchen@chromium.org
Last visit > 30 days ago
Closed: Aug 2016
Cc:
ajha@chromium.org
█ kavvaru@chromium.org
█ durga.behera@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux , Windows , Chrome , Mac
Pri: 1
Type: Bug-Regression



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Regression: Faces of cube are seen missing in 3d cube experiment

Project Member Reported by sc00335...@techmahindra.com, Aug 5 2016 
Version: 54.0.2820.0
OS: Ubuntu 14.04, Windows, Chrome OS

Test URL: http://www.sonja-vieten.de/sketches/CSS3/3d-transforms/3D-QR-code.html

What steps will reproduce the problem?
(1) Launch chrome and go to above url and observe 3d-cube

Expected: All the 6 faces of cube should be seen.
Actual: Instead only one face is seen.

This is a regression issue broken in M53. Will provide bisect info soon.

Good Build: 53.0.2774.0 dev
Bad Build: 53.0.2776.0 dev

Issue is also seen in CrOS with 54.0.2817.0/8673.0.0 dev channel peppy
Actual_cube.ogv
2.6 MB View Download
Expected_cube.ogv
8.8 MB View Download

Comment 1 by kavvaru@chromium.org, Aug 5 2016

Labels: ReleaseBlock-Stable OS-Mac
Status: Untriaged (was: Unconfirmed)
Able to reproduce the issue on Mac 10.11.6 using chrome version 54.0.2820.0.
adding stable blocker as this is regressed in M53.Please feel free to remove if not required.

Sindhu@ Please provide bisect information.

Thanks,

Comment 2 by sc00335...@techmahindra.com, Aug 5 2016

Labels: -Needs-Bisect hasbisect
Owner: trchen@chromium.org
Status: Assigned (was: Untriaged)
CHANGELOG URL:
 https://chromium.googlesource.com/chromium/src/+log/48c8c979b1440101b879a05352cfd5907a8ef643..dab7c8f09b323e70dbcd457963e84d35276e0cea

Suspecting  https://codereview.chromium.org/2065233002 from changelog.

@trchen: Please confirm the behaviour.

Comment 3 by ajha@chromium.org, Aug 5 2016

Labels: -M-54 M-53

Comment 4 by trchen@chromium.org, Aug 5 2016

Status: WontFix (was: Assigned)
Working as intended. The interaction between opacity and 3D transform wasn't specified in old spec. The latest editor's draft decided that opacity should force transform-style:flat, and the world is moving towards that direction.
https://drafts.csswg.org/css-transforms/#grouping-property-values

To fix this particular demo, you may move opacity animation from element "quader" to individual planes, using css selector "#quader div" for example.
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