Most of the Sketchfab WebGL scenes are displayed black

artJay · Post by **artJay** » 2017-08-17, 16:12

Hello.

I'm experiencing strange problems on http://sketchfab.com site, where some of the WebGL scenes open correctly, while the others open as completely black. This must be something new as I don't recall having any problems with this site before I went on vacation a couple of weeks ago. I need to mention that all of the scenes open correctly in Firefox browser.

Working examples:
https://sketchfab.com/models/bf4792bbfc ... 29bbefae03
https://sketchfab.com/models/dc168b11a8 ... 9414e6b7ff
https://sketchfab.com/models/6f2e7a6406 ... f795073434
https://sketchfab.com/models/31586a206f ... 94f91c6974

Non-working examples:
https://sketchfab.com/models/39f6a53f59 ... 39b3506af2
https://sketchfab.com/models/f5e1a947bc ... fe10dd6bac
https://sketchfab.com/models/e634da9fbd ... eb5c0c885d
https://sketchfab.com/models/e3972a40ba ... a212971194
https://sketchfab.com/models/e3972a40ba ... a212971194

I tested the site on two separate machines:
Workstation:
3930K / 64 GB / GTX 660 Ti 3GB / Windows 7 Pro 64-bit / Pale Moon 27.4.1 (64-bit)

Laptop:
i5 M460 / 8GB / Mobility Radeon HD 5470 / Windows 7 Home 64-bit / Pale Moon 27.4.1 (64-bit)
Scenes listed as non-working didn't work on both machines.

On my workstation, I went through the steps provided in pinned topics, like disabling all extensions, starting in safe mode, etc., but even using a new PM profile (without any extensions) didn't help.

What might be the problem I am facing? Could it be because of 64-bit version of Pale Moon? Feels unlikely, because this is the version I have been using since I discovered PM, and so far there weren't any problems with Sketchfab.

I updated nVidia drivers to the latest version.

I also tried installing 32-bit PM, but the problem is still present.

Then I ran http://webglreport.com/ on both: Firefox and Pale Moon and there seem to be some missing WebGL extensions in the latter:

Code: Select all

EXT_color_buffer_half_float
WEBGL_compressed_texture_etc1

Maybe this is the culprit?

Pale Moon:

Firefox:

Any help is greatly appreciated.

Additional Information (for Workstation)

Post by **Moonchild** » 2017-08-17, 16:25

Hah. I can't even check because it crashes my graphics driver.

tenseys · Post by **tenseys** » 2017-08-17, 16:29

In my 32-bit PM, the working examples work and the non working examples don't work as described by OP. They all work in 32-bit FF for me.

Added: I'm using Windows 10 with current versions of 32-bit FF and PM.

Pallid Planetoid · Post by **Pallid Planetoid** » 2017-08-17, 16:45

I also get the same results as OP using Pale Moon 27.4.1 (32-bit) in Windows 7.

Post by **Moonchild** » 2017-08-17, 16:56

It's most likely the compressed texture format that's the issue, if it's black. It may be an issue with our version of the Google ANGLE library in use.

Post by **Moonchild** » 2017-08-17, 17:25

Mozregression gives:

Last bad revision: 891ee0d0ba3ec42b6484cf0205b3c95e21c58f74 (2015-09-30)
First good revision: 096c0f407f8ba3ef7cfe4e0b831761993cac38b1 (2015-10-01)

Pushlog:
https://hg.mozilla.org/mozilla-central/ ... 993cac38b1

Which has:
56db457aef33 Jeff Muizelaar — Bug 1179280. Update ANGLE from chromium/2214 to chromium/2466.

So we'll need to update ANGLE to chromium/2466 at least to solve this.

artJay · Post by **artJay** » 2017-08-17, 19:01

Thank you guys, and you - Moonchild, for your time. I appreciate it.

Sketchfab developers must have added some new features recently that caused this bug to surface. They constantly improve their viewer, which is good of course, but it's the first time when I'm unable to use it in Pale Moon.

Post by **Moonchild** » 2017-08-17, 21:22

Filed Issue #1298 to keep track of this update for compatibility.

artJay · Post by **artJay** » 2017-08-31, 18:45

Any E.T.A. of the ANGLE upgrade? Not rushing you of course as there are probably more critical things to implement, but I thought that it wouldn't hurt to ask considering how important a working Sketchfab is to me.

Post by **Night Wing** » 2017-08-31, 18:53

I get the same results as the OP, but I'm using 64 bit linux Pale Moon (27.4.2) in 64 bit linux Mint 18.2 (Sonya) with the Xfce desktop environment.

Post by **Moonchild** » 2017-09-05, 17:53

I've pushed an ANGLE update to our trunk (after fighting the build system most of the day) that resolves the non-display issues (and crashes) on sketchfab as far as I can tell.
Target version for release is 27.5 for this.

artJay · Post by **artJay** » 2017-09-09, 14:39

Fantastic! I really appreciate it, Moonchild.

Can't wait to test it out.

Post by **Moonchild** » 2017-09-10, 01:22

artJay wrote:Fantastic! I really appreciate it, Moonchild.
Can't wait to test it out.

If you can't wait, you can try the unstable version of Pale Moon.

Pale Moon forum

Most of the Sketchfab WebGL scenes are displayed black

Most of the Sketchfab WebGL scenes are displayed black

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Re: Most of the Sketchfab WebGL scenes are displayed black

Re: Most of the Sketchfab WebGL scenes are displayed black

Re: Most of the Sketchfab WebGL scenes are displayed black

Re: Most of the Sketchfab WebGL scenes are displayed black

Re: Most of the Sketchfab WebGL scenes are displayed black

Re: Most of the Sketchfab WebGL scenes are displayed black

Re: Most of the Sketchfab WebGL scenes are displayed black

Re: Most of the Sketchfab WebGL scenes are displayed black

Re: Most of the Sketchfab WebGL scenes are displayed black

Re: Most of the Sketchfab WebGL scenes are displayed black

Re: Most of the Sketchfab WebGL scenes are displayed black