# ProgressiveGPU

> Backend for baking lighting using the GPU. Uses a progressive path tracing algorithm and the OpenCL compute API.

## Definition

* **Type:** Field
* **Namespace:** [UnityEngine](/engine/6000.6/script-reference/unityengine.md)
* **Assembly:** UnityEngine.CoreModule

```csharp
ProgressiveGPU = 2
```