# CollectDeepHierarchy(Object[])

> Collect all objects in the hierarchy rooted at each of the given objects.

## Definition

* **Type:** Method
* **Namespace:** [UnityEditor](/engine/6000.7/script-reference/unityeditor.md)
* **Assembly:** UnityEditor.CoreModule

```csharp
public static Object[] CollectDeepHierarchy(Object[] roots)
```

### Parameters

**** (\[Object\[]]\(/engine/6000.7/script-reference/unityengine/object)): Array of objects where the search will start.

### Returns

| Type                                                                | Description                                                   |
| ------------------------------------------------------------------- | ------------------------------------------------------------- |
| [Object\[\]](/engine/6000.7/script-reference/unityengine/object.md) | Array of objects heirarchically attached to the search array. |

### Remarks

This is most useful for linearizing entire GameObject hierarchies including all their components.

Note that the traversal will not include assets referenced from within the hierarchy. For example, having a MeshFilter component in the hierarchy will not cause the referenced Mesh to be included in the resulting list.

### Examples

```csharp
using UnityEngine;
using UnityEditor;

public class CollectHierarchyExample : MonoBehaviour
{
    void Start()
    {
        // Create two GameObjects
        GameObject  parent = new GameObject();
        GameObject  child = new GameObject();
        Object[]    roots = new Object[] { parent };

        // Name them
        parent.name = "Parent";
        child.name = "Child";

        // Make one a child of the other.
        child.transform.parent = parent.transform;

        // Collect entire hierarchy
        Object[] result = EditorUtility.CollectDeepHierarchy(roots);

        // Dump results.  Will log four objects to the console;
        // two GameObjects ("Parent" and "Child") and two Transform
        // components (one belonging to "Parent" and one belonging to
        // "Child")
        foreach (Object obj in result)
            Debug.Log(obj);
    }
}
```