I am trying to create a terrain hugging polygon, the interior being some color. Is this possible?
There is work-in-progress for this feature in the ground-primitive branch. We still need to work out some edge cases, but you could experiment with it.
The related issue to watch is #2172.
I will start experimenting today. What we want to do is pretty simpleminded so maybe all will be well fairly quickly.
Thank you very much for getting me to the right place so quickly.