# Optix

> NVIDIA Optix Denoiser.

## Definition

* **Type:** Field
* **Namespace:** [UnityEngine](/engine/6000.5/script-reference/unityengine.md)
* **Assembly:** UnityEngine.CoreModule

> **Warning:**
>
> **Deprecated.** DenoiserType.Optix is obsolete, use DenoiserType.OpenImage instead.

```csharp
Optix = 1
```

### Remarks

The NVIDIA Optix denoiser is an AI accelerated denoiser that reduces noise in baked lightmaps. It requires an NVIDIA GPU with 4GB+ VRAM and driver version R495.89 or above. Only supported on the Windows platform.