Display a 3D NFT in a scene

[nearnshaw]

This needs more definition.

The NFT metadata will be likely hosted in the marketplace.

The SDK needs a way to place a 3D model that gets metadata from the marketplace to know what to render.

We need to certify that the scene owner is also owner of this NFT. We need to display some kind of seal of approval to show in-world that this is an authentic NFT.

Also, we should validate that the 3D model doesn't make the scene exceed triangle and texture limits

[fmiras]

I'd follow the metadata extension spec of the ERC721 standard so we don't care if it hosted in IPFS, marketplace or a computer in my garage, we get abstracted from that and only manage the metadata template it self to load the 3D model.

[menduz]

We are working this idea here: https://docs.google.com/document/d/1TJ0rrIgfhm09WYCQJ7i6f4PR6GYAMckvyOjUkIaPrWY/edit#