[Webkit-unassigned] [Bug 181445] New: WebGL video texture black in Safari 11.0.2 and wrong colored in Safari Preview 11.1

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Tue Jan 9 12:03:00 PST 2018


https://bugs.webkit.org/show_bug.cgi?id=181445

            Bug ID: 181445
           Summary: WebGL video texture black in Safari 11.0.2 and wrong
                    colored in Safari Preview 11.1
           Product: WebKit
           Version: Safari 11
          Hardware: Macintosh
                OS: Unspecified
            Status: NEW
          Severity: Blocker
          Priority: P2
         Component: WebGL
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mail at krpano.com
                CC: dino at apple.com

Created attachment 330841

  --> https://bugs.webkit.org/attachment.cgi?id=330841&action=review

screenshot

Hi, since Safari 11.0.2 WebGL video texture usage is broken in some cases - only black pixels will be rendered from the video texture.

The behavior itself is very strange and not logical to reproduce - in some examples with basically the same WebGL rendering code and the same video the video textures are working and in some other examples not...

Here's a not working example:
https://krpano.com/krpanocloud/video/airpano/

Older Safari versions and all others browsers are fine!

The next strange thing - in Safari Technology Preview (Release 46, 11.1) the same example is working again, but now with wrong colors (green-tinted)...

Attached a screenshot for comparison:
- Safari 11.02 - black texture
- Safari Preview 11.1 - wrong colored texture
- Chrome - as it should

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