WebXR API and low resolution captions Re: Research Questions Task Force (RQTF) agenda for 14 July 2021

Hi all,

[+ Research Questions TF list on cc]

Thanks Frances for starting this, and Christopher (happy to hear more 
from George). I was actually just preparing a mail for Christopher on 
this. So for some background.
I've reviewed a spec called 'WebXR Layers API Level 1'. [1] I think 
there is an accessibility related concern. [2]

To capture that here:

The spec provides support for various layer types used in a WebXR
session (adds 'composition' layers). It covers rendering, view creation,
Video Layer creation, events and WebXR Device API stuff.

It's mostly technical implementation details - but one thing that jumped
out at me is that WebXR Layers API allows the rendering/re-rendering of 
certain content at different
resolutions. So I was thinking this may have accessibility implications 
to ensure that important
accessibility related content doesn't get scaled down.

So the question is should we feedback to the immersive web group? Do we 
need to flag this to them or suggest a note is needed to
say that captions or other accessibility content should be privileged 
and therefore not rendered poorly in certain contexts, such as when 
there are bottlenecks when rendering, or limited bandwidth?

What would also be useful to us in Research Questions would be evidence 
that captions actually need to be high resolution, or if there known 
issues with low resolution captions in certain contexts in immersive 
environments.

Or indeed any other info you deem useful! Appreciated, and if you have 
any questions please let me know.

Thanks

Josh

[1]  https://www.w3.org/TR/webxrlayers-1/
[2] https://lists.w3.org/Archives/Public/public-apa/2021May/0040.html
-- 
Emerging Web Technology Specialist/Accessibility (WAI/W3C)

Received on Thursday, 15 July 2021 12:56:31 UTC