Add scene to spec about gltf HOT 6 CLOSED

There are already scenes in the outputFormat. We can add a scene propery at the root level to select the one to start with.

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It is allready in the .dae, so you just have to pass the information.

This said, it would be useful to have parameters to the converter to convert only a subset of a dae. One thing that is very useful is to extract a specific node, and its decendants, or a specific geometry. The converter will have to follow the dependencies.
I did that in the past as a xquery, so it is easy to do on the rest server before converting, but could be useful in the converter as well.

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@RemiArnaud that makes the converter pretty complicated. I would put in on a much-later feature list.

Your scenario sounds like a job for Rest3D: an app has a complex scene database, presumably stored on a server. It makes a query and gets back the subset of the scene. Isn't this exactly what Rest3D is intended for?

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Yes!

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@pjcozzi
Scene is already in the output from the converter.
Without debating here about external reference to scenes as it is tracked here #37
and also since we have today

"scenes" : {
   "scene0": {}
   "scene1": {}
    ....
}

and
"scene" : "scene0"

Could we close this one by just specifying scenes and scene in the SPEC ?

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Closing as duplicate with #150.

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