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Format

GL Transmission Format (Text)

Download XML

Summary

Name
GL Transmission Format (Text)
Version
2.x
Identifiers
  • MIME: application/json
  • PUID: fmt/1315
Format type
Model
Description
glTF (GL Transmission Format) is a royalty-free specification for the transmission and loading of 3D scenes and models by applications. It is an API-neutral runtime asset delivery format. glTF bridges the gap between 3D content creation tools and modern 3D applications by providing an extensible, interoperable format for the transmission and loading of 3D content. The gltf contains a JSON format that must contain a top-level "asset" property. The "asset" property must contain a "version" property with a value equal to "1.0". Full specification of the format can be found at https://github.com/KhronosGroup/glTF/blob/master/specification/1.0/README.md A glTF Overview can be found at https://www.khronos.org/gltf
File extensions
gltf
Source
Preservica / Preservica
Developed by
Khronos Group / Khronos Group
Supported by
Khronos Group / Khronos Group

Internal signatures

GLTF 2.x

Note
BOF:'{'*'"asset"'*':'*'{'*'"version"'*':'*'"2.{a gap of 1-10 bytes to allow for minor versions to be identified}"' EOF: '}'

Byte sequences

Min Frag Length
Absolute from BOF
Offset
0
Max offset
5
Byte Sequence
7B*22617373657422*3A*7B*2276657273696F6E22{0-20}3A{0-20}22322E{1-10}22
Endianness
None
Min Frag Length
Absolute from EOF
Offset
0
Max offset
5
Byte Sequence
7D
Endianness
None

Changelog

  • Added in V110

    Release date
    14 March 2023

    GL Transmission Format (Text) 2.x: Signature changed to allow files with minor or revision version numbers to be correctly identified, file format version and signature name changed to reflect this. Submitted by Preservica.

    GL Transmission Format (Text) 2.x: Signature researched and samples provided by Preservica.

  • Updated in V97

    Release date
    1 October 2020

    GL Transmission Format (Text) 2.0: Signature amended with wildcards instead of fixed byte range between sequences. Submitted by Preservica.

  • Added in V96

    Release date
    21 January 2020

    GL Transmission Format (Text) 2.0: Signature developed and samples provided by Preservica as part of PRONOM Research Week 2019.

    GL Transmission Format (Text) 2.0: Full entry added. Submitted by Preservica as part of PRONOM Research Week 2019.