OMI glTF Working Group Meeting 2022-10-27

[robertlong]

This meeting will be on 10/27/2022 at 10:30 PM (UTC) / 2:30 PM (PST) in the OMI Discord within the #omi-weekly-meeting channel. During the meeting, we will be using the #omi-gltf-extensions channel to manage a speaker queue, post links, and for any sidebar discussions.

To be notified of this meeting and others, subscribe to the OMI Meetings and Events Calendar or add yourself to the @omi-gltf-subgroup role in the #roles channel of the OMI Discord.

Last Week's Agenda for reference:

• OMI_link
• OMI_spawn_point
• We're meeting in a Frame space, check the omi-gltf-extensions channel for details
• glTF Transform Updates
• unity-thirdroom-exporter
• OMI_collider
• KHR_audio / Khronos feedback
  • gltf-sample-assets
• glXF
  • OMI_id / OMI_ref
• USDz spike
• Schedule alternate timezone meeting
• Show and tell
• Create next weeks agenda

To propose another item for the agenda, comment below (preferably before the meeting).

[robertlong]

OMI_link

Link extension should be added to a node with the OMI_collider extension. Implementation details of how the link behaves (navigate on click or navigate on collide) is up to the client.

Metadata for the link can be gathered through a WebFinger-like API where you pass the URL and receive metadata like thumbnail, title, and description.

{
  "nodes": [
    {
      "name": "Link",
      "extensions": {
        "OMI_link": {
          "uri": "https://omigroup.org/worlds/meetup"
        },
        "OMI_collider": {
          ...
        }
      }
    }
  ]
}

[madjin]

Visualizing an example when talking about trigger zones - can add a "zone" app in hyperfy that can trigger an action like opening a link in same tab / new tab over anything. Previews as a slightly transparent box overlay.

Can also make any object into a clickable link, mouse cursor will change when an object is interactive.

---

Metadata for the link can be gathered through a WebFinger-like API where you pass the URL and receive metadata like thumbnail, title, and description.

Shared a couple examples with Wikipedia / gwern.net for hover text

[robertlong]

OMI_collider

Added some new comments on referring to colliders via indices vs placing definitions on nodes:
#63 (comment)

[robertlong]

three-omi

Discussed some implementation details for this PR, implementing KHR_audio omigroup/three-omi#10