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Clarify restrictions for nodes with a defined matrix

specification

Status: Open.

#2547 In KhronosGroup/glTF;

· lexaknyazev opened on Dec 31, 2025

·  

2.0.x

Provide implementation guidance on unlit material composition

PBRPhysically Based RenderingPhysically Based Rendering

Status: Open.

#2546 In KhronosGroup/glTF;

· lexaknyazev opened on Dec 29, 2025

Slightly ambiguous wording in KHR_materials_clearcoat on the default value of clearcoatFactor

PBRPhysically Based RenderingPhysically Based Rendering

Status: Open.

#2545 In KhronosGroup/glTF;

· juj opened on Dec 29, 2025

Inherited from where? Buried ?

Status: Open.

#2544 In KhronosGroup/glTF;

· Aylos9er opened on Dec 22, 2025

Clarification of "two implementations" requirement for ratification

Status: Open.

#2542 In KhronosGroup/glTF;

· javagl opened on Dec 8, 2025

EXT_mesh_gpu_instancing with negative scale might break backface culling

Status: Open.

#2540 In KhronosGroup/glTF;

· stripe2933 opened on Nov 7, 2025

glTF 2.1 and complex scenes

Status: Open.

#2532 In KhronosGroup/glTF;

· lilleyse opened on Oct 1, 2025

Possible inconsistency for undefined texture sampler handling

Status: Open.

#2519 In KhronosGroup/glTF;

· javagl opened on Aug 17, 2025

Move the JSON schema files to a separate repository

Status: Open.

#2515 In KhronosGroup/glTF;

· anthony-arnold opened on Aug 3, 2025

the spz, 3d gauss splatting model I generated is rendered upside down in Cesium

Status: Open.

#2509 In KhronosGroup/glTF;

· chenqi13814529300 opened on Jul 22, 2025

Extending glTF for Synchronized Immersive Video and Audio in glTF

Status: Open.

#2506 In KhronosGroup/glTF;

· powersimple opened on Jul 16, 2025

HTML and PDF version of spec is outdated

documentation

Status: Open.

#2505 In KhronosGroup/glTF;

· UX3D-haertl opened on Jul 1, 2025