The encyclopedia · Software & IT · Technical decision · 2016-2022
Khronos made glTF the JPEG of 3D and it became the standard asset format
glTF is a royalty-free, JSON-based way to ship a 3D scene, so any engine loads any model; it became the industry's 3D asset format.
Khronos Group
the move
3D content had no interchangeable format: each game engine, CAD tool and web viewer used its own, so sharing a model meant converting or re-authoring it, and files were bloated.
Khronos, the graphics industry consortium, built glTF: a royalty-free specification for the efficient transmission and loading of 3D scenes and models. The core is a JSON file describing the scene, while buffers, textures and meshes pack into one binary .glb.
That mix is the trick: JSON is ubiquitous and readable, the single binary keeps payloads small, and the spec is royalty-free and extensible. The industry calls it 'the JPEG of 3D' because it is an asset you hand off, not a whole engine you adopt.
glTF became the baseline for 3D Commerce and was picked up by major platforms and tool vendors, and in 2022 glTF 2.0 was published as the ISO/IEC 12113 international standard.
why it works
- JSON means any developer can read and edit the asset structure with no SDK.
- One binary payload keeps 3D files small and fast to load.
- Royalty-free removes the licensing obstacle that blocks adoption.
- An extensible spec lets vendors add features while staying compatible.
what transfers
Ship the asset, not the authoring tool: a royalty-free, self-describing payload removes the conversion tax and makes every tool compatible for free.
what came after
glTF 2.0 became the ISO/IEC 12113:2022 international standard, cementing it as the global 3D asset format. It is the default interchange for 3D Commerce, AR and VR viewers and an ever-growing list of tools and engines, so a single asset now plays across the industry.
references
spotted an error? The archive wants to know.