That is really cool! Already thinking of how you created those bands, I already have some ideas but not sure if I’m going in the right direction ahahahaha.
Is it a simple slope select to control where the farms are placed? Or is it a bit more advanced, for example, ditching a farm if at some point it reaches a slope > X° or something.
To determine where the fields are located, it’s a simple selection of “height” filtered with a slope selection. And I use a two-node expansion, one at -10 and one at +10, which creates a filter.
And for the strips in the ground that orient themselves relative to the terrain, I use the “surface angle” map. This map assigns a gray value to each pixel based on its orientation relative to the sun. I just need to use a “select height” to determine which area I want.