1124614 - Low-res WebGL cubemap faces randomly rendered black

Status: RESOLVED FIXED

(Core :: Graphics: CanvasWebGL, defect)

Description

[arthur]

Attachment: cubefacebug.jpg

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:35.0) Gecko/20100101 Firefox/35.0
Build ID: 20150108202552

Steps to reproduce:

1. Render a quad into 16x16 cubemap.
2. Render a quad into 8x8 cubemap.


Actual results:

Some faces of 8x8 cubemap become black. Usually it's the first face, but sometimes some other faces too.


Expected results:

Quad drawn into every cubemap face.

Test page: http://geom.io/pc30/testCubemapFaces.html

There was not such problem on FF 34.0. Ironically I reported the same bug to Chromium, and they fixed it recently: https://code.google.com/p/chromium/issues/detail?id=447419

Comment 1

[Matthias Versen [:Matti]]

We use the same library as chrome (angle) for webgl.

Comment 2

[arthur]

(In reply to Matthias Versen [:Matti] from comment #1)
> We use the same library as chrome (angle) for webgl.

OK, you might just use their latest fix then.

Comment 3

[Bas Schouten (:bas.schouten)]

This is simply dependent on an ANGLE update.

Comment 4

[Kelsey Gilbert [:jgilbert]]

This seems to be fixed by an ANGLE update.