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⇱ Khronos Releases glTF 2.1 To Make This 3D Asset Standard Work Well For Large Scenes - Phoronix


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Khronos Releases glTF 2.1 To Make This 3D Asset Standard Work Well For Large Scenes

Written by Michael Larabel in Standards on 11 June 2026 at 10:02 AM EDT. 3 Comments
It's crazy realizing that glTF 2.0 is already nine years old for this API-neutral 3D runtime and asset delivery format. The Khronos 3D Formats Working Group today extended that with the debut of glTF 2.1 as a backward-compatible revision to the specification.

While up to now glTF was basically focused on shipping single assets, glTF 2.1 makes the format more applicable for large, composed scenes as the main focus of the v2.1 release.

👁 glTF 2.1 features


Among the additions to glTF 2.1 are allowing preview thumbnails to be embedded directly within glTF files that can be presented without needing a renderer, a standardized way for composing and delivering multi-file scene graphs, new spatial primitives, progressive delivery work, and a 64-bit GLB format to lift the 4GB size ceiling.

👁 glTF 2.1 additions


Those wishing to learn more about today's glTF 2.1 spec release can do so via Khronos.org.

Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.