Finally, here's a view from space at the terrain for that Schweitzer project to illustrate non-contiquous terrain.
The red arrow points to roughly where the building site is in the Schweitzer south bowl area above the village. The north bowl is not included, since it is not visible from the home. The separate patch of hill to the lower right affects the view, and maybe insignificantly the sun on a couple winter mornings. The site has a view of Lake Pend Oreille, so a couple of patches of lake are included so that we can "see" them from inside the model and the deck that the guy is standing on in the last image.
(Note how the two lake patches to not blend perfectly - weird parallelograms. Just life with Google Earth capture.)
Rather than make all of the terrain be a single GDL object (from a single 3DS from SketchUp), I made two objects - so that I could turn the lake off just to get it out of the way when not needed.
For sun, the site is also affected by the Cabinet Mountains to the west, but they are far enough away, that it just delays morning sun, so was not bothered with. And, the client did not care about views to any particular peaks in that direction, so none were captured/included.
It really is a lot of fun ... and just beyond too cool that we can do this kind of stuff with the tools available today!
One of the forum moderators • AC 26 USA and earlier • macOS Ventura 13.2.1, iMac Pro 10-Core, Radeon Pro Vega 64