[Webkit-unassigned] [Bug 139024] New: WebGL Shader corruption with iPhone 5 on iOS 8.1.1

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Mon Nov 24 03:43:59 PST 2014


            Bug ID: 139024
           Summary: WebGL Shader corruption with iPhone 5 on iOS 8.1.1
    Classification: Unclassified
           Product: WebKit
           Version: 528+ (Nightly build)
          Hardware: iOS
                OS: iOS 8.1
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebGL
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: markperris at me.com

Created attachment 242155
  --> https://bugs.webkit.org/attachment.cgi?id=242155&action=review
Screenshot of corruption visible on an iPhone 5.

Running the following example on an iPhone 5 with iOS 8.1.1 causes corrupted output, per the screenshot attached.


The same style of corruption is also visible on certain examples on ShaderToy.
The ShaderToy examples work correctly with an iPhone 6, suggesting it could be a driver bug.
I'll test this specific example on an iPhone 6 when I head past the Apple Store tonight.

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