I am a beginner and am trying to replicate node groups I see in images.
Forgive me if this is a stupid question to you, but I can't seem to find certain nodes.
For example, I see the IOR node in someone's setup,
but I can't seem to find it when I search for it.
Does anyone know how I can get these "hidden" nodes?
EDIT: This is NOT a duplicate. The duplicate mentioned is talking about nodes in the compositor, while these are actual nodes in the material node editor.