1057765 - Glitches / sort of dirty buffer with WebGL in Windows 8.1

Status: RESOLVED INCOMPLETE

(Core :: Graphics: CanvasWebGL, defect)

Description

[Soledad Penades [:sole] [:spenades]]

A simple WebGL example is giving buggy output in Firefox for someone with Windows 8.1 (twitter thread here: https://twitter.com/thebabydino/status/503200712697065472 )

Here's a live example demonstrating the issue with an screenshot of the buggy output to the left: http://sole.github.io/test_cases/webgl/dirty_buffer/

Code for the example, including unminified Three.js library:
https://github.com/sole/test_cases/tree/gh-pages/webgl/dirty_buffer

It works fine in Mac systems-both Firefox release and Nightly, so I guess it might be something to do with Windows per se. I don't have a Windows machine so I can't confirm/reproduce.

Comment 1

[Kelsey Gilbert [:jgilbert]]

I cannot reproduce this on my Windows machine. We're going to need a copy of about:support from an affected machine.

Comment 2

[Ana Tudor]

(In reply to Jeff Gilbert [:jgilbert] from comment #1)
> I cannot reproduce this on my Windows machine. We're going to need a copy of
> about:support from an affected machine.

https://gist.github.com/thebabydino/aa391653ed846555529e