Occasionally I repost what I think are supremely helpful tutorials, and oh look, I'm doing it again.
We get asked about if C4D can do snowy mountains every so often, and usually sub poly displacement is the answer. But eminent C4D avenger @turboniko has made a really very helpful video showing how to get the absolutely the best from the landscape primitive and the terrain shader to get a pretty decent result, AND it remains parametric. And there's a good bit on height maps at the end as well, so flagging it here as useful to everyone...
So do give that a watch, and a like and let's encourage him in his excellent work ! :)
CBR