Question about creating a new material.

MeshMagnet

Whenever I create a new material, the final node has some stuff with white text while the other stuff is grayed out. How do I activate the grayed out options?

See what I mean....

timotronprime

This is all easily found in the official documentation: https://docs.unrealengine.com/latest/INT/Engine/Rendering/Materials/MaterialInputs/index.html
It depends on your surface shader.

passerby

the other inputs are enabled or disabled depending on what type of surface you have defined in the material properties.

MeshMagnet

Thanks for the info.