# Scene.traverse

## Summary
Scene.traverse iterates over every mesh in the scene and invokes a callback for each. Traversal order follows mesh insertion order. Use this for batch updates and mesh-side analysis operations.

## Syntax
```ts
Scene.traverse(callback: (mesh: Mesh) => void): void
scene.traverse(callback);
```

## Parameters
| Name | Type | Required | Description |
| --- | --- | --- | --- |
| `callback` | `(mesh: Mesh) => void` | Yes | Function executed once per mesh in `scene.meshes`. |

## Returns
`void` - No value is returned; callback side effects drive behavior.

## Type Details
```ts
// No additional descriptor expansion is required for this signature.
```

## Example
```js
const canvas = document.querySelector("canvas");
const wgpu = await WasmGPU.create(canvas);

const scene = wgpu.createScene();
scene.add(wgpu.createMesh(wgpu.geometry.box(1, 1, 1), wgpu.material.unlit({ color: [1, 0.5, 0.2] })));
scene.add(wgpu.createMesh(wgpu.geometry.sphere(0.7, 20, 14), wgpu.material.unlit({ color: [0.2, 0.7, 1.0] })));

scene.traverse((mesh) => {
    mesh.transform.translate(0, 0.05, 0);
});
```

## See Also
- [Scene.traverseVisible](./wasmgpu-world-scene-traversevisible.md)
- [Scene.meshes](./wasmgpu-world-scene-meshes.md)
- [Scene.findByName](./wasmgpu-world-scene-findbyname.md)