com.unity.cloud.gltfast 6.15.1 Package Notes

Assigned glTF logo to [GltfEntityAsset](xref:GLTFast.GltfEntityAsset) component.
(Test) Test glTF asset *CylinderWithMaterial* that's procedurally generated at runtime.
(Test) Tests for documentation examples.
(Test) `OpenGltfScene` improvements.
- Refactored to use custom load method.
- Load method option to choose between loading from file or URI.
- Scene index option.
- Informative console logs with file path/URI and load time.
- Now works at runtime as well (without file dialog).
- Re-positions camera so that the loaded glTF scene is framed.
- Can load via [EntityInstantiator](xref:GLTFast.EntityInstantiator).

(Entities) Entities of a scene are grouped via `LinkedEntityGroup`.
(Performance) Import mesh indices as unsigned integers and don't convert to signed integers anymore.
(Performance) Limited copy buffer size, so that garbage allocations do not scale with glTF-Binary content size anymore (when loading from file or `Stream`).
(Performance) Large glTF-Binary content is now loaded into memory in smaller chunks, which keeps the frame rate smooth (when loading from file or `Stream`).
(Performance) Shift loading glTF-Binary from stream to memory to a background thread, if it won't likely fit within the current update loop.
(Performance) glTF-Binary buffers are not initialized with zeros before population.
[meshoptimizer mesh compression for Unity] minimum required version was raised to 0.2.0-exp.1.
(Test) Updated tests dependency Graphics Test Framework (com.unity.testframework.graphics) to 8.13.1-exp.1.

Returning a proper error for glTF-Binary with a content length shorter than what's depicted in the header.
NotSupportedException when loading a glTF-Binary file with excess length (fixes #786).
(Documentation) Clarified how to add export shader variants.
(Test) Fixed generated test glTFs by exporting them in synchronous mode (only available internally).
(Importer) Synchronization Context is now properly reset after an exception (thanks Bruno for #29).
Removed compiler warning when `GLTFAST_SAFE` scripting define is active.
(Test) Stabilize tests by executing `LogAssert.Expect` before actual tests.
(Entities) Sub-meshes are rendered properly.
(Test) Tests destroy the glTF entities before disposing meshes/materials to avoid batch rendering errors.