[Webkit-unassigned] [Bug 181317] New: WebGL alpha:false seems to be compositied incorrectly

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Thu Jan 4 21:24:32 PST 2018


https://bugs.webkit.org/show_bug.cgi?id=181317

            Bug ID: 181317
           Summary: WebGL alpha:false seems to be compositied incorrectly
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebGL
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: gman at chromium.org
                CC: dino at apple.com

Safari 11.0.2 and 11.1 Technology Preview v48 seems to composite WebGL canvases incorrectly if alpha:false

Here's an example

https://jsfiddle.net/greggman/2rk7pmx3/

In Safari all 5 canvases come out different colors but they should all be the same color. See Firefox and Chrome

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