[Webkit-unassigned] [Bug 32634] New: framebuffer object seems to be broken

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=32634

           Summary: framebuffer object seems to be broken
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Macintosh Intel
        OS/Version: Mac OS X 10.6
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: WebGL
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: aaron.babcock at gmail.com


Created an attachment (id=45018)
 --> (https://bugs.webkit.org/attachment.cgi?id=45018)
use fbo to shift texture one pixel to the left per second

The attached file is a hacked up version of the textured cube demo from 
learningwebgl.com. I was experimenting with framebuffer objects to create the
"ping pong", render to texture technique that is useful for gpgpu stuff. When
loaded, you should see a canvas filled with a texture that then shifts to the
left, one pixel every second. It works perfectly using the nightly builds up to
revision r50918. Revision r51062 breaks. I see a rendered texture, but there is
no shifting to the left. 

I am completely new to OpenGL so it is quite possible I screwed something up,
but I thought I would file a bug since I was able to get it working for certain
builds and not others.

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