Material Functions in Unreal Editor for Fortnite

Material functions are self-contained node networks that perform specific operations, such as complex math equations. These networks provide a way to create reusable assets by packaging parts of a material graph that can be inserted into other material graphs.

This helps you create materials that can perform well on platforms that require simple materials and graphics because material functions don’t require a lot of memory. Using the Shading Path Switch material node in a material graph can help improve performance on low-end platforms as well.

Shading path switches provide a way to set up different behaviors for different platforms on a material node, so if you want the material to do something specific when the island is running on mobile, then you can implement that behavior on the mobile path.

Materials may fail to compile on low-end platforms when there are too many textures, so switches are used in material graphs to fix the performance issues.

Using Material Functions