https://github.com/turban/photosphere

http://stackoverflow.com/questions/2541481/get-average-color-of-image-via-javascript

http://threejs.org/examples/webgl_lod.html
http://threejs.org/docs/#Reference/Objects/LOD

Maybe worthwhile for very large meshes. Can levels of detail be added dynamically after async download?

Currently Virtex limits vertical rotation to +/- 1 radian. Make this configurable via the options object.

A value of 0 could imply no limit.

three touches or right click to pan.

https://github.com/borismus/webvr-boilerplate

On mouse over an object, set the cursor to cursor:grab and cursor:-webkit-grab.

On clicking an object, set the cursor to cursor:grabbing and cursor:-webkit-grabbing.

Having the bounding box of the object, it's possible to translate the scene so that the center of rotation / origin matches the one of the object's bounding box.

http://universalviewer.io/examples/#?c=0&m=0&s=0&cv=0&manifest=http%3A%2F%2Ffiles.blokdust.io%2Fmanifests%2Ffraunhofer%2Fvertebra-tsn.json

https://github.com/AltspaceVR/AltspaceSDK

https://github.com/elfrank/virtual-texturing

gzipping prevents loading bar:

rgrove/rawgit#81

investigate applying an unlit material - with the diffuse not being modulated by anything (ie 100% 'emissive')

mrdoob/three.js#5502

Currently Virtex uses Y as the default "up axis". Make this configurable via the options object: https://stackoverflow.com/questions/8272297/three-js-rotate-projection-so-that-the-y-axis-becomes-the-z-axis
Perhaps this could be included in IIIF manifests?

http://stackoverflow.com/questions/20153705/three-js-wireframe-material-all-polygons-vs-just-edges

https://github.com/kottenator/jquery-circle-progress

you can pass in a canvas: kottenator/jquery-circle-progress#62

would this work with an in-memory canvas?

http://www.theatlantic.com/technology/archive/2016/03/theater-history/475293/

https://github.com/mrdoob/three.js/blob/dev/examples/webgl_loader_gltf.html#L92

Skybox texture could be specified in a IIIF manifest? An image annotation with a different motivation to painting?

https://threejs.org/docs/#api/cameras/OrthographicCamera

Should be possible to turn this on and off with an external button.

view-source:https://storage.googleapis.com/demos.webmproject.org/draco/draco_loader_throw.html

Add a config option to set the initial rotation of the camera about the target object.

Perhaps the best approach is to first check which axis is 'up' (#24), then rotate the camera about that axis by whatever the configured radian rotation value is while mainting cameraZ distance (which should be renamed to cameraDistance to be axis agnostic).

Mesh compression: http://vcg.isti.cnr.it/corto

Mesh multiresolution: http://vcg.isti.cnr.it/nexus

Making interfaces: http://3dhop.net/

A server which takes care of the model conversion to multiresolution format for 3d and RTI, hosting and some configuration:

http://ariadne1.isti.cnr.it

Three.js loads .obj and .mtl files separately.

http://stackoverflow.com/questions/43122400/is-there-a-way-to-load-a-mtl-using-the-path-in-the-obj-file

Is there a way to just use the .obj file to get the .mtl path and have a single file to reference (as required) in a IIIF manifest?

Aframe also specifies separate files: https://aframe.io/docs/master/components/obj-model.html

Related issue exporting diffuse texture from Blender: http://blender.stackexchange.com/questions/76697/cant-get-diffuse-texture-to-be-included-in-mtl-file

Lighting values can already by controlled via these config options:

ambientLightColor: 0xd0d0d0,
ambientLightIntensity: 1,
directionalLight1Color: 0xffffff,
directionalLight1Intensity: 0.75,
directionalLight2Color: 0x002958,
directionalLight2Intensity: 0.5

These values could be included in the IIIF manifest to allow per-object customisation.