[x3d-public] An annotations example and project

[John Carlson]

Suggested ways forward:

1.  Figure out how to do JSON attachments in view3dscene/cge. Requires
Pascal/WebAssembly?   Assumes we will use .glb or XML.

2.  Figure out how to load color, materials (PBR, etc.) and JSON
annotations in X3DOM.  Assumes we will use XML.

3.  Figure out how to do JSON annotations in X_ITE.  Assumes we will use
XML.

If someone is interested in my XML, I suggest doing a Save after loading
Astronaut.glb into view3dscene.

Here's how to load Astronaut.glb into view3dscene:

$ Downloads/view3dscene-4.2.0-win64-x86_64/view3dscene/view3dscene.exe
Astronaut.glb

I suggest we do a parallel approach.  Michalis adding annotations to
view3dscene/cge, Andreas(or other?) adding color and annotations to X3DOM,
and Holger adding annotations to X_ITE. I or Joe can do the "webapp" if
necessary, but see below.

Okay, CTS time on keyboard is up!

John

On Wed, Oct 5, 2022 at 8:29 AM Vincent Marchetti <vmarchetti at kshell.com>
wrote:

> Intro: The IIIF 3D Technical Study Group ,
> https://iiif.io/community/groups/3d/tsg/ , is developing standards and
> practices to 3D content in libraries and museums. Their general philosophy
> is to evaluate and support a variety of formats and viewers, rather than
> choose one format to rule them all.
>
> One of the members, Ed Silverton of memnoscene ( https://mnemoscene.io/ )
> recently presented a prototype of a method by which  annotations on a 3D
> asset can be shared among viewers.
> To see the demo, go to : https://yqxggz.csb.app/ -- You shouid see an
> astronaut in a 3D viewer; the rendering is done by Google's model-viewer,
> and the underlying asset is a glTF asset at
> https://cdn.glitch.com/36cb8393-65c6-408d-a538-055ada20431b/Astronaut.glb
>
> Under the model-viewer pane, and above the "Set Annotations" button, is an
> input text field. Copy and paste the following json structure:
>
> [
> {"id":0,
> "normal":"-0.24679987544979334 -0.0979611424867969 0.9641023991468167",
> "position":"-0.1377316524360126 0.9925992890184887 0.2542247719185542",
> "value":"right hipbone"},
> {"id":1,
> "normal":"0.29259561389217825 0.11383937564155769 0.9494358342113489",
> "position":"0.0652451665004884 1.8182700174153779 0.32465106720430725",
> "value":"face mask"}
> ]
>
> and click the Set Annotations button. The annotations should appear, as
> labels associated with the 3D rendering.
>
> According to Ed SIlverton, the coordinates and normals in the json above
> are a 'hit' on the astronaut mesh, that is used as the target for the
> annotation label.
>
> I have taken on the challenge of implementing a similar capability for the
> X3D rendering of this model, target demo delivery being the next TSG call
> on Nov 1.
>
> Eager to hear whether there is similar work out there, or ideas for
> implementing and extending this capability. I plan start a project on Code
> Sandbox ( https://codesandbox.io/ )  for this work.
>
> Vince Marchetti
>
>
>
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>
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