# zTest

> zTest of the handles.

## Definition

* **Type:** Property
* **Namespace:** [UnityEditor](/engine/6000.0/script-reference/unityeditor.md)
* **Assembly:** UnityEditor

```csharp
public static CompareFunction zTest { get; set; }
```

### Remarks

Default value is Always.

![HandleZTest (zTest)](/api/media?file=/engine/6000.0/media/images/HandleZTest.png)

*This anchor shows the first downwards collider intersection. Depth pass lines appears green, depth fail, red.*

To use this example, attach this script to the object you wish to display the anchor :

### Examples

```csharp
using UnityEngine;
using UnityEditor;

[ExecuteInEditMode]
public class SampleAnchor : MonoBehaviour
{
    void OnDrawGizmosSelected()
    {
        Ray ray = new Ray(transform.position, Vector3.down);
        RaycastHit hit;
        if (Physics.Raycast(ray, out hit))
        {
            Handles.color = Color.green;
            Handles.zTest = UnityEngine.Rendering.CompareFunction.LessEqual;
            Handles.DrawLine(transform.position, hit.point);
            Handles.DrawWireDisc(hit.point, hit.normal, 0.5f);

            Handles.color = Color.red;
            Handles.zTest = UnityEngine.Rendering.CompareFunction.Greater;
            Handles.DrawLine(transform.position, hit.point);
            Handles.DrawWireDisc(hit.point, hit.normal, 0.5f);
        }
    }
}
```