What is the use of a "Group Input" directly in the Node tree of the material? Note, not within a nodes group
It can be easily added to the material nodes tree, but I don't understand its usefulness.
Is there any particular function? If so, which one?
I know what a group inputs node in the node group is for. So my question is specific what it is for in a node_tree of the material.
If anyone is 100% sure that the "Group input" node in the material node_tree is useless, please explain why