[Webkit-unassigned] [Bug 219851] WebGL Float Texture Blending Regression

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=219851

Kenneth Russell <kbr at google.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Depends on|                            |216949

--- Comment #1 from Kenneth Russell <kbr at google.com> ---
EXT_float_blend support was recently added to WebKit in Bug 216949 by jdarpinian at . The test passes in Safari Technology Preview. I do see that Safari 14 fails this test. The problem is likely that ANGLE's WebGL backend is more strict than WebKit's older handwritten OpenGL/OpenGL ES backends.

However - even with Safari Technology Preview 117, the scene at:
https://cad.onshape.com/documents/21528514dbb278dfb84b48fc/w/b8e3c69807c266318a9e26fe/e/15c030164c537c1eec47b4b6

draws an empty end cap for the cube in the section view rather than the expected orange face seen in Chrome.

Evan, could you help us understand what's going wrong in OnShape in Safari Technology Preview? We'd like to investigate this against top-of-tree WebKit. Thanks.


Referenced Bugs:

https://bugs.webkit.org/show_bug.cgi?id=216949
[Bug 216949] Support EXT_float_blend
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