[doranteseduardo]

Summary

The second part of 3.1.0, merged to develop after the first release PR (#423) reached main and before anything was published: glTF support and the rendering fixes it surfaced (#447).

Changes

• glTF KHR_texture_transform with texture coordinate sets, KHR_node_visibility and KHR_animation_pointer; emissive textures, and emission on PBR materials.
• tinygltf follows glTF 2.0 where it was stricter (channel node, top-level sections, sampler interpolation), so files using animation pointers load.
• OPAQUE and MASK ignore texture and vertex-colour alpha; BLEND no longer writes depth; 8-bit indices draw.
• Skins animated through nodes between their joints move, and skinned meshes are no longer culled by their bind-pose bounds.
• Web: skinned meshes draw (bone indices are uvec4).
• CHANGELOG.md and RELEASE_NOTES.md cover all of it under v3.1.0 (8 November 2026).

Notes

• main's merge commit from Release 3.1.0 #423 is not on develop yet; the back-merge after this lands brings both.

Testing

See #447: Khronos samples, the showcase models and a 74-model corpus sample rendered headless against three.js; Android, visionOS and web build; iOS build in progress.