1113633 - WebGL game "Barfight" no longer displays some textures (errors in shader.js)

Status: RESOLVED WONTFIX

(Web Compatibility :: Site Reports, defect)

Description

[[SV Manager] Florin Mezei, QA (:FlorinMezei)]

Attachment: barfight_bad.png

Reproducible with: 
- Firefox 35 Beta 5 - BuildID: 20141218174327
- Firefox 36 Aurora latest - BuildID: 20141217004003
- Firefox 37 Nightly latest - BuildID: 20141218030202
NOT Reproducible with:
- Firefox 34.0.5

Reproducible on: Windows 7 x64, Windows 8.1 x86, Ubuntu 14.04 x86
Works on: Mac OS X 10.7.5

Steps to reproduce:
1. Open Firefox and go to http://www.tubagames.net/barfight/game.php.

Expected results:
The game loads, and then displays a bar with people.

Actual results:
The game loads but displays no people. The browser console displays errors like:
"Error: WebGL: linkProgram failed, with this log:
Types for uniform 'webgl_dcb03f6e55a92391' differ between vertex and fragment shaders
shader.js:139
Error: WebGL: getUniformLocation: program: deleted object passed as argument material.js:69"

See full console log at: http://pastebin.com/WpW3iWXg.

The issue reproduces the same way on IE and Chrome, but at the same time is a regression from 2014-10-10:
Regression window(m-c)
Good: 2014-10-09 (BuildID=20141009030201)
Bad: 2014-10-10 (BuildID=20141010030201)
Pushlog: https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=5d6ec4dddf14&tochange=50b689feab5f

The main suspect seems to be https://bugzilla.mozilla.org/show_bug.cgi?id=1076020.

Comment 1

[[SV Manager] Florin Mezei, QA (:FlorinMezei)]

Attachment: barfight_good.png

Comment 2

[[SV Manager] Florin Mezei, QA (:FlorinMezei)]

The issue was reproduced on AMD and NVidia cards.

Comment 3

[Robert Kaiser]

Milan, can we get someone to look into this?

Comment 4

[Milan Sreckovic [:milan] (needinfo for best results)]

Looks like a game side error, we're just tougher on them?

Comment 5

[Lukas Blakk [:lsblakk] use ?needinfo]

We might want to note this since, given the timing in the cycle, this will likely ship in 35.

Comment 6

[Lukas Blakk [:lsblakk] use ?needinfo]

Release noted as a known issue: "WebGL games might not display some textures"

Comment 7

[Jeff Muizelaar [:jrmuizel]]

(In reply to Lukas Blakk [:lsblakk] use ?needinfo from comment #6)
> Release noted as a known issue: "WebGL games might not display some textures"

It might be worth making that:

"Validation of shader precision specifiers is stricter which may cause some WebGL content that previously worked to stop working"

Comment 8

[Sylvestre Ledru [:Sylvestre]]

Jeff, Milan, are we going to work on that or do we expect them to fix their code?
Thanks

Comment 9

[Jeff Muizelaar [:jrmuizel]]

(In reply to Sylvestre Ledru [:sylvestre] from comment #8)
> Jeff, Milan, are we going to work on that or do we expect them to fix their
> code?
> Thanks

This is a problem with there code (it doesn't work in Chrome either). They need to fix it.

Comment 10

[Sylvestre Ledru [:Sylvestre]]

Thanks

Comment 11

[Milan Sreckovic [:milan] (needinfo for best results)]

So, should we TechEvangelism this?

Comment 12

[Adam Stevenson [:adamopenweb]]

The game no longer loads in Firefox or Chrome, lots of mixed content warnings and other error messages.

I think we should close this as WONTFIX. Please reopen if you disagree.