1388293 - WebVR: Drawing to external monitor when canvas is set to 'antialias: false' does not work

Status: RESOLVED FIXED

(Core :: WebVR, defect, P3)

Description

[esx2ve]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.115 Safari/537.36

Steps to reproduce:

1. Run https://github.com/toji/webvr.info/blob/master/samples/07-advanced-mirroring.html with context creation attrib 'antialias: true'.

Result: works properly

2. Run the same thing with 'antialias: false'

Result: view shows correctly in the HMD, black window in WebGL 2.0. 


Actual results:

'antialias: false' causes incorrect behaviour of drawing to the canvas after submitFrame() has been called.


Expected results:

gl commands after submitFrame() should show on the external monitor canvas

Comment 1

[:kip (Kearwood Gilbert)]

I suspect that the patch in Bug 1400457 may correct this, as it also fixes other mirroring issues apparent on sites such as Sketchfab.com.

Let's re-test this once Bug 1400457 lands in FF58 and see if more work will be needed to correct it.

Comment 2

[:kip (Kearwood Gilbert)]

I have reproduced this, and confirmed that that patch in Bug 1400457 corrects it.

I'll leave this bug open until Bug 1400457 lands and the fix can be confirmed to fix this one as well.

Comment 4

[:kip (Kearwood Gilbert)]

This has been fixed with the patch in Bug 1400457 which has just landed.