# FastMemoryFlags

> Control Fast Memory render target layout.

## Definition

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

```csharp
[Flags]
public enum FastMemoryFlags
```

## Fields

| Value                                                                                               | Description                                                                                         |
| --------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------- |
| [None](/engine/6000.6/script-reference/unityengine/rendering/fastmemoryflags/none.md)               | Use the default fast memory layout.                                                                 |
| [SpillBottom](/engine/6000.6/script-reference/unityengine/rendering/fastmemoryflags/spillbottom.md) | Sections of the render target not placed in fast memory will be taken from the bottom of the image. |
| [SpillTop](/engine/6000.6/script-reference/unityengine/rendering/fastmemoryflags/spilltop.md)       | Sections of the render target not placed in fast memory will be taken from the top of the image.    |