Using Fixed Foveated Rendering

Updated: Apr 14, 2026

This section covers how to implement Fixed Foveated Rendering (FFR) in your Unreal application. To learn how FFR works, and how to debug it, see [Fixed Foveated Rendering (FFR)](/documentation/unreal/os-fixed-foveated-rendering/).

Dynamic Foveation

When dynamic foveation is enabled, the system automatically adjusts the foveation level based on GPU utilization, up to but never exceeding the specified maximum level. You should use Dynamic FFR instead of Unreal’s Dynamic Resolution feature.

Set the FFR Level

There are multiple ways to set the FFR level and turn on dynamic foveation.

Project Settings

You can set the FFR level in your Unreal project settings. To access these settings:

In Unreal go to Edit > Project Settings

Display the settings by clicking Meta XR under Plugins, and on the Plugins - Meta XR page, find Mobile

Use the Foveated Rendering Level to set the desired foveation level

Check Dynamic Foveated Rendering to turn on dynamic FFR (it will be unchecked by default) The following image shows an example of the project settings:

API to Set FFR

You can set the FFR level using the following method:

void UOculusXRFunctionLibrary::SetFoveatedRenderingLevel(EOculusXRFoveatedRenderingLevel level, bool isDynamic)

The parameters are:

level is one of the following values:

EOculusXRFoveatedRenderingLevel::Off (index = 0): Default

EOculusXRFoveatedRenderingLevel::Low (index = 1)

EOculusXRFoveatedRenderingLevel::Medium (index = 2)

EOculusXRFoveatedRenderingLevel::High (index = 3)

EOculusXRFoveatedRenderingLevel::HighTop (index = 4): High foveation setting with more detail toward the bottom of the view and more foveation near the top. Treated like High when using OpenXR backend.

isDynamic is true to indicate dynamic FFR is on, or false to indicate dynamic FFR is off

For more information about the quality settings of the different rendering levels, see Fixed Foveated Rendering (FFR).

Blueprints to Get and Set the FFR Level

The Blueprints to get and set FFR are located under the Unreal Blueprints folder path OculusLibrary.

Use the Get Foveated Rendering Level Blueprint to retrieve the current FFR level setting. The following image shows an example:

Get Foveated Rendering Level Blueprint node with an FFR level enum return value.

Use the Set Foveated Rendering Level Blueprint to set the FFR level to one of the five possible values, and to select whether FFR is dynamic. The following image shows an example:

Set Foveated Rendering Level Blueprint node with level and isDynamic inputs.