What's Changed

• Add transform modes for single-object and batch export by @hybridherbst in #831
• Basic HDRP export support by @krisrok in #826
• Fix mesh deduplication for meshes with different materials by @hybridherbst in #842
• Improve KHR_interactivity support and Export API by @pfcDorn

New Contributors

• @krisrok made their first contribution in #826

Full Changelog:

[2.16.0-pre.3] - 2025-04-15

• fix: workaround for URP error in Unity 6+ with new Render Graph API (uncatchable and incorrect exception during on-demand rendering)
• fix: issue when deduplicating shared meshes with different materials (#836)
• change: numerous KHR_interactivity API changes to make runtime usage and extensibility easier
• change: remove KHR_audio sample from package samples. If you're interested in KHR_audio_emitter support, please follow the progress of adding it as properly supported extension here: #835.

[2.16.0-pre.2] - 2025-04-03

• fix: regression when batch exporting material-only files
• fix nullreference when loading a materials-only file with GLTFSceneImporter or GLTFComponent
• fix GLTFComponent failing when the loaded file is a web URL but "Load from streaming assets" is on (the default). If the URI starts with http:// or https://, we now automatically load from the web.
• fix: GPU instancing can't be enabled on Shader Graph-based materials when the built-in render pipeline is active. Unity does not support GPU instancing with Shader Graph.

[2.16.0-pre.1] - 2025-04-03

• add: Interactivity Export API now has AddLog method that takes log settings into account, so app-specific logging can be used
• add: Transform Modes for batch exporting from the UnityGLTF menu (Auto, Local, World, Reset), with options covering various use cases
• add: editor setting for export type (GLB vs. glTF) from the UnityGLTF menu
• add: improvements to HDRP material export support (#826)
• change: API cleanup for Interactivity node export
• change: removed legacy GLTFSettings.requireExtensions option that wasn't really used