# LightingSettings.Lightmapper

> Backends available for baking lighting.

## Definition

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

```csharp
public enum LightingSettings.Lightmapper
```

## Fields

| Value                                                                                                        | Description                                                                           |
| ------------------------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------- |
| [ProgressiveCPU](/engine/6000.0/script-reference/unityengine/lightingsettings/lightmapper/progressivecpu.md) | Backend for baking lighting using the CPU. Uses a progressive path tracing algorithm. |
| [ProgressiveGPU](/engine/6000.0/script-reference/unityengine/lightingsettings/lightmapper/progressivegpu.md) | Backend for baking lighting using the GPU. Uses a progressive path tracing algorithm. |