Bug 114293 - [CSS Regions] Content with 3D transform flowed in a region ignores perspective transform
Summary: [CSS Regions] Content with 3D transform flowed in a region ignores perspectiv...
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: CSS (show other bugs)
Version: 528+ (Nightly build)
Hardware: All All
: P2 Normal
Assignee: Nobody
URL:
Keywords: AdobeTracked
Depends on:
Blocks: 57312
  Show dependency treegraph
 
Reported: 2013-04-09 11:17 PDT by David Alcala
Modified: 2013-06-13 11:03 PDT (History)
3 users (show)

See Also:


Attachments
actual results (701 bytes, text/html)
2013-04-09 11:17 PDT, David Alcala
no flags Details
expected results (no regions) (790 bytes, text/html)
2013-04-09 11:18 PDT, David Alcala
no flags Details

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Description David Alcala 2013-04-09 11:17:30 PDT
Created attachment 197150 [details]
actual results

Reproduction steps:
Open the attached file rotate-perspective-webkit-bug.html in a browser that supports regions (Chrome Canary or WebKit Nightly) on Wino or Mac.

Actual Results:
The green polygon looks like it has skew applied to it, instead of rotateX with perspective 3D transform.

Expected Results:
The green polygon looks like it has rotateX with perspective 3D transform.  The top edge should be shorter than the bottom edge and the left and right sides should be slanting inward.  The shape (but not the position) should look like rotate-perspective-webkit-bug-no-region.html

Workaround:
None
Comment 1 David Alcala 2013-04-09 11:18:08 PDT
Created attachment 197151 [details]
expected results (no regions)
Comment 2 Mihai Balan 2013-05-31 09:50:44 PDT
After some more investigations it looks like content flowed in a region that has a 3D transform applied does not take into account the perspective (whether specified via -webkit-perspective on a parent or via the perspective() transform function in -webkit-transform).
Comment 3 Michelangelo De Simone 2013-06-13 11:03:54 PDT
Still repros on today's nightly (r151543)