The Skeletal Mesh Reduction tool should be enabled by default when you create a new project. However, if it is not enabled, the following how-to walks you through the necessary steps to enable the Skeletal Mesh Reduction Plugin in your Unreal Engine 4 (UE4) project.
Steps
- From the UE4 Editor go to the Main Toolbar and select Edit \> Project Settings.
- From the Project Settings window, go to the Editor section and click on the Skeletal Mesh Simplification section.
- Under the General section, click on the Skeletal Mesh Reduction Plugin drop-down, and from the displayed list, select the SkeletalMeshReduction option.
- Press the Restart Now button, in the lower-right corner, to restart the Editor with the SkeletalMeshReduction Plugin enabled.
End Result
When the SkeletalMeshReduction plugin has been successfully enabled, you will see a new section under LOD 0 called Reduction Settings like in the image below.
