[x3d-public] Presentation from SVVR2017

[Leonard Daly]

Andreas,

> Hi Leonard,
>
> thanks for sharing your slides. They provide good perspective.

Thank you. Sorry for the delay - I had to catch up on some other work. I 
also was considering your comments and how best to respond.


>
> Some comments. While cobweb certainly is not used widely it probably 
> would have deserved mentioning in the table of web technologies. Also, 
> I think it is clear that A-Frame is quite a bit ahead in terms of 
> providing VR capability, compared to others (unity may have something 
> functional as well). The slides, at least, did not seem to make this 
> obvious.

I wanted to include applications/packages people were familiar with. I 
was surprised at the lack of familiarity with X3DOM and A-Frame from 
those in the audience. I was limited by space on the chart. I would have 
listed Cobweb as open, declarative, and HTML with a 'Level of Use' as "low".

A-Frame's VR capability (as all of its rendering capability) is provided 
by Three.js. I know that Unreal has rather extensive VR (Rift, Vive) 
headset capability. I believe that Unity does too. Since the focus for 
this talk was on browser-based VR, I couldn't spend the time addressing 
VR capabilities of these platforms.



>
> Did you get feedback after your presentation ? Anything you can share 
> would be interesting.

Nothing significant. There was more in discussions with other attendees 
at the conference who did not see my presentation. I'll be posting that 
over the next month or so.


>
> The idea of combining of x3dom and A-Frame somehow is interesting. I 
> think it would boil down to implementing a new x3d browser on top of 
> A-Frame which may be quite possible. I experimented by reimplementing 
> IndexedFaceSet and ElevationGrid in A-Frame and think that geometry 
> and material nodes could be quite straightforward. Not sure about 
> everything else but probably possible with a lot of work. It also 
> would mean having a SAI on top of the DOM (as being manipulated by 
> A-Frame and custom event interfaces). Your presentation made a good 
> argument that there is a lot of value in having a wide set of 
> standardized capabilites.

Personally, I think putting X3DOM on top of A-Frame is a bit like 
inverting a pyramid. A-Frame (as defined, not extended) is a rather 
limited-capability system. I think it would be much easier to put 
A-Frame on top of X3DOM -- except the part with A-Frame extensions. I 
think a better choice is to merge the two keeping the most important 
capabilities of both. I am formulating some ideas on that.


Leonard Daly


>
> -Andreas
>
>     Message: 3
>     Date: Mon, 3 Apr 2017 21:02:28 -0700
>     From: Leonard Daly <Leonard.Daly at realism.com
>     <mailto:Leonard.Daly at realism.com>>
>     To: X3D Public <x3d-public at web3d.org <mailto:x3d-public at web3d.org>>
>     Subject: [x3d-public] Presentation from SVVR2017
>     Message-ID: <d3ded90c-4be7-17e3-af0c-7d82276acba6 at realism.com
>     <mailto:d3ded90c-4be7-17e3-af0c-7d82276acba6 at realism.com>>
>     Content-Type: text/plain; charset="utf-8"; Format="flowed"
>
>     I presented at Silicon Valley VR Expo 2017 last week. The title of the
>     presentation was "Open Source Declarative VR/3D Environment" where the
>     focus was on enterprise requirements for VR. In the presentation I
>     looked at high level requirements and capabilities of a declarative
>     VR/3D/AR language, and compared those requirements to the
>     offerings from
>     X3DOM and A-Frame. I found that neither application met the
>     requirements, but both are close enough that a merge would get there.
>
>     Presentation: http://realism.com/svvr2017 (redirect to Google Slide)
>
>     Blog: http://realism.com/blog/report-svvr2017
>     <http://realism.com/blog/report-svvr2017>
>
>
>     --
>     *Leonard Daly*
>     3D Systems & Cloud Consultant
>     LA ACM SIGGRAPH Chair
>     President, Daly Realism - /Creating the Future/
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-- 
*Leonard Daly*
3D Systems & Cloud Consultant
LA ACM SIGGRAPH Chair
President, Daly Realism - /Creating the Future/
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