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Re: [3d-transforms] Behavior of intersecting layers with transform-style: preserve-3d is undefined and inconsistent across implementations

From: Simon Fraser <smfr@me.com>
Date: Fri, 07 Oct 2011 20:13:43 -0700
Cc: Chris Marrin <cmarrin@apple.com>, James Robinson <jamesr@google.com>, public-fx@w3.org
Message-id: <8F1F5480-26A1-43AC-8F47-045B221EB98E@me.com>
To: "Gregg Tavares (wrk)" <gman@google.com>
On Oct 7, 2011, at 7:48 PM, Gregg Tavares (wrk) wrote:

> I don't know if this belongs in a separate thread but even before intersection we need to spec how things get sorted. Mid point?, front most point?, back most point?, local origin?
> 
> Here's an example of just sorting where Chrome and Safari don't currently match
> 
> http://greggman.com/downloads/examples/3d-css-sorting-issue.html
> 
> Screenshots if you don't want to run another browser
> 
> http://greggman.com/downloads/examples/3d-css-sorting-issue-chrome.png
> http://greggman.com/downloads/examples/3d-css-sorting-issue-safari.png

In this testcase #over should render on top, even in the absence of 3D transforms. It would do so with just the position:absolute. The z-index is extra insurance. Chrome's rendering is obviously incorrect.

Simon
Received on Saturday, 8 October 2011 03:14:13 GMT

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