1094047 - Bananabread doesn't render correctly

Status: RESOLVED INVALID

(Core :: Graphics: CanvasWebGL, defect)

Description

[Adam Frisby]

User Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:36.0) Gecko/20100101 Firefox/36.0
Build ID: 20141104030202

Steps to reproduce:

Start Bananabread (https://developer.mozilla.org/en-US/demos/detail/bananabread)


Actual results:

Doesn't render correctly.

Textures not colored correctly and player model not animated.

http://i.imgur.com/mSzw8MJ.jpg
http://i.imgur.com/RfAaNeV.jpg


Expected results:

Render correctly.

---

Renders correctly on Stable (33) and Beta (34).
Doesn't render correctly on Aurora (35) or Nightly (36)

---

Sapphire AMD Radeon R7 240 1GB 128-Bit GDDR5

Adapter Description	AMD Radeon R7 200 Series
Adapter Drivers	aticfx64 aticfx64 aticfx64 aticfx32 aticfx32 aticfx32 atiumd64 atidxx64 atidxx64 atiumdag atidxx32 atidxx32 atiumdva atiumd6a atitmm64
Adapter RAM	1024
Device ID	0x6613
Direct2D Enabled	true
DirectWrite Enabled	true (6.3.9600.17111)
Driver Date	10-9-2014
Driver Version	14.301.1006.0
GPU #2 Active	false
GPU Accelerated Windows	1/1 Direct3D 11 (OMTC)
Subsys ID	00000000
Vendor ID	0x1002
WebGL Renderer	Google Inc. -- ANGLE (AMD Radeon R7 200 Series Direct3D9Ex vs_3_0 ps_3_0)
windowLayerManagerRemote	true
AzureCanvasBackend	direct2d
AzureContentBackend	direct2d 1.1
AzureFallbackCanvasBackend	cairo
AzureSkiaAccelerated	0

Comment 1

[:Gijs (he/him)]

[Tracking Requested - why for this release]:
This seems like a serious regression.


Adam, can you reproduce this in safe mode (Help > Restart with add-ons disabled)? Wondering if it goes away when hwa is turned off.

Comment 2

[Matthias Versen [:Matti]]

Last good revision: f0bb13ef0ee4 (2014-10-09)
First bad revision: 50b689feab5f (2014-10-10)
Pushlog:
https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=f0bb13ef0ee4&tochange=50b689feab5f

suspected:
Jeff Muizelaar — Bug 1076020. Update to ANGLE 2182 + fixes. This corresponds to ANGLE commit 9a2e6ac98a10907b1241bd5709597912e08f63fb It vastly improves D3D11 performance on Intel GPUs by avoiding write to multiple render targets when unneeded.

The demo hangs if you try it without hwa/safemode

Comment 3

[Matthias Versen [:Matti]]

I have an intel and an nvidua card in my system (optimus) but i get the issue also when i force the system to run Firefox on the nvidia card.

Adapter Description	Intel(R) HD Graphics 4000
Adapter Description (GPU #2)	NVIDIA GeForce GT 630M
Driver Date	9-30-2014
Driver Date (GPU #2)	9-13-2014
WebGL Renderer	Google Inc. -- ANGLE (Intel(R) HD Graphics 4000 Direct3D9Ex vs_3_0 ps_3_0)

Comment 4

[Jeff Muizelaar [:jrmuizel]]

It looks like Chrome has the same issue.

Comment 5

[Jeff Muizelaar [:jrmuizel]]

Interestingly enough Chrome even has the same rendering broken rendering on OS X.

Comment 6

[Jeff Muizelaar [:jrmuizel]]

Chrome also seems to be shipping the regression.

Comment 7

[Jeff Muizelaar [:jrmuizel]]

BananaBread has precision mismatches in its shaders and we now properly give an error on Windows. BananaBread should be fixed. I've filed bug 1097227 about catching this error on all platforms.

Comment 8

[Jeff Muizelaar [:jrmuizel]]

https://github.com/kripken/BananaBread/issues/53 tracks the upstream problem