Requesting that Get Normal allows feeding of a shader setup into Main Input, and allow it to only draw data from that input, providing data for that object in final/texture spaces.
There is a lot that we could do within Terragen if Get Normal was able to use a source rather than using whatever node structure it's plugged into, and what object those shaders are fed.
For example, Ulco's Shore Challenge would be a lot easier to accomplish all within Terragen if the water plane could utilize normal data from the planet.
Plugins could probably be easily created, or done in functions for water/terrain interaction, etc too, among other things.
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In a side note, I wonder if in current form, or could be added, that a target could be given and have normals converge on it. Leaning normals in at a source, or away from. I was trying to think about how that would be done in bare functions but not even sure where to start.