---
title: "ExperimentalSpatialGltfAnimationApi"
description: "Marks the SpatialGltfModel animation APIs as experimental."
type: "class"
lastmod: "2026-07-19T07:47:45.807008Z"
---
## API Reference

> Source set: Android

> **Requires Opt-in** This is an experimental API. It may be changed or removed in the future.

```kotlin
public annotation class ExperimentalSpatialGltfAnimationApi
```

Marks the SpatialGltfModel animation APIs as experimental. These APIs may change or be removed in
the future.

Any usage of a declaration annotated with `@ExperimentalSpatialGltfAnimationApi` must be accepted
either by annotating that usage with `@OptIn(ExperimentalSpatialGltfAnimationApi::class)` or by
propagating the annotation to the containing declaration.