# On

> Shadows are cast from this object.

## Definition

* **Type:** Field
* **Namespace:** [UnityEngine.Rendering](/engine/6000.7/script-reference/unityengine/rendering.md)
* **Assembly:** UnityEngine.CoreModule

```csharp
On = 1
```

### Remarks

Shadow rendering will use the same culling mode as specified in the object's shader. Typically this means that single-sided objects (like a Plane or a Quad) do not cast shadows if the light is behind them. Use [ShadowCastingMode.TwoSided](/engine/6000.7/script-reference/unityengine/rendering/shadowcastingmode/twosided.md) to treat objects as two-sided for shadow rendering.

Additional Resources: [Renderer.shadowCastingMode](/engine/6000.7/script-reference/unityengine/renderer/shadowcastingmode.md).