EXT_copyrights

Contributors

Takahiro Aoyagi, Mozilla, @takahirox

Status

Prototype

Dependencies

Written against the glTF 2.0 spec.

Overview

glTF core spec has a copyright field. But the field takes any strings. It is hard for applications to determine from the field to prohibit certain uses depending on the copyright or licence. This extension provides more structured copyrights information in glTF.

Example

{
    "asset": {
        "extensions": {
            "EXT_copyrights": {
                "authors": [
                    "John Smith",
                    "Ichiro Tanaka"
                ],
                "version": "1.0.0",
                "uri": "https://www.dummy.com/dummy.html",
                "license": "CC BY-SA 3.0 US",
                "licenseUri": "https://creativecommons.org/licenses/by-sa/3.0/us/",
                "unpermitted": [
                    "redistribution",
                    "commersial use",
                    "modification"
                ]
            }
        }
    }
}

Fallback

T.B.D.

Copyright types

Property	Type	Description	Requires
`authors`	`string[1-*]`		Yes
`version`	`string`		Yes
`uri`	`string`		No
`copyright`	`string`		No
`license`	`string`		No
`licenseUri`	`string`		No
`extras`	`any`		No
`unpermitted`	`string[1-*]`	T.B.D. any of "redistribution", "commersial use", "modification", ...	No (Should these be specified in the license?)

glTF KHR_xmp_json_ld extension
- xmpRights contains properties that provide information regarding the legal restrictions associated with a resource, but doesn't contain structured information about what are allowed or disallowed
VRM Permission/License Information field
- Similar concept, but this extension is independent of VRM spec or VR use

takahirox / EXT_copyrights