GDi4K. His OpenLand marketplace asset comes with the widget he uses in the video, but it isn’t necessary. I managed to fumble around with RVT and Heightfield to get the same result. It is easier with his asset, however (I do believe he also has widget macros for RVT support, among other things.) I tend to borrow a few of his material functions for any landscape material I’m working on, but it’s all easy enough to figure out. He also has a newer video showing how to hide the old landscape. Do note that Virtual Heightfield meshes ONLY (as far as I know) use RVT for texturing. If you notice textures look “crunched” and some of your fancier distance-based nodes don’t seem to work, that’s just one of the pitfalls of it.