[x3d-public] X3D minutes16 July 2020: Inline refresh, https, description; X3DUrlObject: glTF support

Don Brutzman brutzman at nps.edu
Sat Aug 1 11:22:14 PDT 2020


Discussed briefly with Dick and Michalis.  Also added requirement for corresponding level 4 in Lighting component.

On 8/1/2020 8:05 AM, Don Brutzman wrote:
> Important gap: we don't specifically call out glTF under Inline node in Networking component.
> 
> Existing prose:
> ===============
> 9.4.2 Inline
> [...]
> The run-time system can support any number of 3D model resource types as long as those follow the abstract model definition (see 2.[RFC2077]), provide a registered content type (e.g. model/x3d-xml, model/gltf-bin, model/stl, etc.), and can be determined with some form of content negotiation (see 2.[RFC2616]). The run-time system must support at least one X3D type (e.g. model/x3d-xml) but can also support and negotiate any number of X3D encodings and (optionally) non-X3D representation formats.
> ===============
> 
> Recommended additions:
> 
> "Support for loading glTF assets also requires support for Shape component level 3."
> 
> Support levels:
> 
>      4
>      Model support
>      Support for .gltf (model/gltf+json) and .bin (application/octet-stream)
> 
> Normative references
> 
> * GLTF
> * GL Transmission Format (glTF) Specification, The Khronos Group, Version 2.0, 2017.
>    https://github.com/KhronosGroup/glTF/tree/master/specification/2.0
> 
> Related reference section for glTF MIME information:
> 
> [1] glTF File Extensions and MIME Types
>      https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#file-extensions-and-mime-types
> 
> All review and potential improvement of this important section is welcome.
> 
> all the best, Don

all the best, Don
-- 
Don Brutzman  Naval Postgraduate School, Code USW/Br       brutzman at nps.edu
Watkins 270,  MOVES Institute, Monterey CA 93943-5000 USA   +1.831.656.2149
X3D graphics, virtual worlds, navy robotics http://faculty.nps.edu/brutzman



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