This is the part 13 of the tutorial series I am doing on how to create an open world Game in #unreal engine.
in this part, I'll explain how to expose material parameters such as specular, roughness and metallic as material function inputs so that we can have different values for each landscape material layer.
For more explanations and material code, refer to the blog post:
https://gamedevsl.blogspot.com/2018/11/unreal-material-functions-exposing.html