# GetGroundHit(out WheelHit)

> Gets ground collision data for the wheel.

## Definition

* **Type:** Method
* **Namespace:** [UnityEngine](/engine/6000.0/script-reference/unityengine.md)
* **Assembly:** UnityEngine.VehiclesModule

## GetGroundHit(WheelHit)

```csharp
public bool GetGroundHit(out WheelHit hit)
```

### Parameters

**** (\[WheelHit]\(/engine/6000.0/script-reference/unityengine/wheelhit)): 

### Returns

| Type                                                          | Description |
| ------------------------------------------------------------- | ----------- |
| [bool](https://learn.microsoft.com/dotnet/api/system.boolean) |             |

### Remarks

If the wheel collides with something, returns true and fills the hit structure. If the wheel is not colliding, returns false and leaves hit structure unchanged.

The reported hit is always the closest one. Because the tire friction model does not automatically respond to other [PhysicsMaterial](/engine/6000.0/script-reference/unityengine/physicsmaterial.md)s, any simulation of different ground materials must be done manually by adjusting [WheelCollider.forwardFriction](/engine/6000.0/script-reference/unityengine/wheelcollider/forwardfriction.md) and [WheelCollider.sidewaysFriction](/engine/6000.0/script-reference/unityengine/wheelcollider/sidewaysfriction.md) based on collider's material returned here.