Manifestival

Viewer:

{
  "@context": "http://iiif.io/api/presentation/4/context.json",
  "id": "https://example.org/iiif/3d/model_origin.json",
  "type": "Manifest",
  "label": { "en": ["Single Model"] },
  "summary": { "en": ["Viewer should render the model at the scene origin, and then viewer should add default lighting and camera"] },
  "items": [
    {
      "id": "https://example.org/iiif/scene1/page/p1/1",
      "type": "Scene",
      "label": { "en": ["A Scene"] },
      "items": [
        {
          "id": "https://example.org/iiif/scene1/page/p1/1",
          "type": "AnnotationPage",
          "items": [
            {
              "id": "https://example.org/iiif/3d/anno1",
              "type": "Annotation",
              "motivation": ["painting"],
              "body": {
                "id": "https://raw.githubusercontent.com/IIIF/3d/main/assets/astronaut/astronaut.glb",
                "type": "Model",
                "format": "model/gltf-binary"
              },
              "target": "https://example.org/iiif/scene1/page/p1/1"
            }
          ]
        }
      ]
    }
  ]
}

Manifestival: View IIIF 3D in Multiple Viewers