RESOLVED DUPLICATE of bug 182550182379
glClearColor - Safari Mobile WebGL implementation doesn't render a transparent background 
https://bugs.webkit.org/show_bug.cgi?id=182379
Summary glClearColor - Safari Mobile WebGL implementation doesn't render a transparen...
Roberto
Reported 2018-02-01 01:35:37 PST
Created attachment 332860 [details] Minimal example reproducing the issue On safari mobile on iOS 1.3 beta, when loading a website with a WebGL canvas and a text behind it, if you just call glClearColor with a transparent color, the text is not shown. It didn't happen in the previous version of Safari mobile. The issue can be reproduced if you open Safari on iOS 1.3 beta and load any website with a WebGL canvas and a text behind it. For the canvas, just set the clear color to something semi transparent. What I expect is to see the text behind the canvas. What I actually see is a black canvas.
Attachments
Minimal example reproducing the issue (559 bytes, application/zip)
2018-02-01 01:35 PST, Roberto 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Radar WebKit Bug Importer
Comment 1 2018-02-01 11:14:03 PST
<rdar://problem/37123031>
Dean Jackson
Comment 2 2018-03-07 11:05:36 PST
I think this is a dupe of 182550 and has been fixed. *** This bug has been marked as a duplicate of bug 182550 ***
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