[x3d-public] Stereographic Displays

[Leonard Daly]

This is related but not identical to my previous message "Mobile 
Responsive Navigation"

Using shaders it is possible to construct a stereographic display so 
that a user can "see" in 3D. This can be assisted with tools such as 
Cardboard, Oculus, GearVR, or many other items. I wrote a blog post on 
this and how to create the various pieces at 
http://realism.com/blog/3d-google-cardboard. The code that does the 
stereographic display is fully X3D as expanded by X3DOM to support 
certain features.

I feel that this capability is important to include directly in X3D V4. 
This is a means of viewing, so my initial thought would be that this 
would be an addition to the Viewpoint node. This method of generating 
stereographics does require changes to the scene graph, so it might be 
better to have a new node - StereoViewpont.

The fields this nodes appears to require are:
   SFFloat [in,out] interpupillaryDistance 0.03
   <reference to scene or scene-fragment that is to be viewed in stereo>

There might be other fields (for example depth-of-field, zoom, etc.). 
For mobile devices it is also necessary to handle device motion, so 
whatever is defined needs to support mobile device tracking.


Comments?

-- 
*Leonard Daly*
X3D Co-Chair
Cloud Consultant
President, Daly Realism - /Creating the Future/
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