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Howto

This is currently quite hacky. Vanilla three doesn't run on node. To run file conversion,

open dynamicFiles.ts
set the various "generate" flags at the top to true
npm link /path/to/three/on/the/hacky/branch
(optional) adjust the file slicing in dynamicFiles.ts to e.g. only test with a few
npm run dev
this will generate files. However, settings aren't good for actually using the server; local three doesn't work for some reason.

To run the app,

open dynamicFiles.ts
set the various "generate" flags to false
make sure the file slicing line is commented out
you may have to delete node_modules and package-lock.json since the local three version is "stuck"
npm i
npm run dev
now things should be back working.

would be nice not having to hack three for nodejs support
- could probably mock ImageBitmapLoader instead of ImageLoader, maybe even from the outside
currently can't import the better USDZExporter from needle-tools/engine (same problems running in node)
- copied it here but better would be one codecase; the current approach doesn't have the USDZ animation extension in it

allow for multiple submodules and structure callbacks for each of them (where to find files and readmes)
- khronos/gltf-sample-models
- usd-wg/assets
- needle/test-assets
allow generating new files from existing ones
- GLB to USDZ with three
- GLB to USDZ with Blender
- GLB to USDZ with Omniverse
- GLB to USDZ with Reality Converter
- USDZ to GLB with three (*for the files generated with three)
- USDZ to GLB with Blender
- USDZ to GLB with Omniverse
- Screenshots from GLB
- Screenshots from USDZ
allow to see at a glance what the source format is
- usdz or gltf
allow to see what features a file has
- gltf-transform for gltf
- usdview for usdz
switch between files and renderers
- files are GLB or USDZ; there may be multiple versions (e.g. GLB and roundtrip GLB, or GLB and 3 different USDZ conversions)
- renderers can show GLB (needle-engine, model-viewer), USDZ (Autodesk), or both (model)
- e.g. show glTF with needle-engine or model-viewer or model
- show USDZ with model or Autodesk's render delegate