https://github.com/takahirox/ext_copyrights

glTF copyrights extension
https://github.com/takahirox/ext_copyrights

extension gltf gltf2

Last synced: about 1 month ago
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glTF copyrights extension

• Host: GitHub
• URL: https://github.com/takahirox/ext_copyrights
• Owner: takahirox
• Created: 2021-04-16T19:04:40.000Z (almost 4 years ago)
• Default Branch: main
• Last Pushed: 2022-05-06T21:06:30.000Z (almost 3 years ago)
• Last Synced: 2024-12-20T13:43:56.554Z (about 2 months ago)
• Topics: extension, gltf, gltf2
• Homepage:
• Size: 5.86 KB
• Stars: 5
• Watchers: 4
• Forks: 0
• Open Issues: 2
• Metadata Files:
  • Readme: README.md

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README

        
# EXT\_copyrights

## Contributors

* Takahiro Aoyagi, Mozilla, [@takahirox](https://github.com/takahirox)

## Status

Prototype

## Dependencies

Written against the glTF 2.0 spec.

## Overview

[`glTF core spec`](https://www.khronos.org/registry/glTF/specs/2.0/glTF-2.0.html) 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?) |

## Related

* [glTF KHR_xmp_json_ld extension](https://github.com/KhronosGroup/glTF/tree/main/extensions/2.0/Khronos/KHR_xmp_json_ld)

  * [xmpRights](https://github.com/adobe/xmp-docs/blob/master/XMPNamespaces/xmpRights.md) 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](https://github.com/vrm-c/vrm-specification/tree/master/specification/0.0#permission--license-information)

  * Similar concept, but this extension is independent of VRM spec or VR use