# frictionCombine

> Determines how the friction is combined.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine](/engine/6000.7/script-reference/unityengine.md)
* **Assembly:** UnityEngine.PhysicsModule

```csharp
public PhysicsMaterialCombine frictionCombine { get; set; }
```

### Remarks

Traditionally friction properties are dependent on the combination of the two materials in contact. This is however impractical in a game. Instead you can use the combine mode to tune how the friction values of two materials are combined.