Looking at the assets he used, I can only assume he either using the spherical shader on an immense high tri count grid to make the planet and plopped a regular landscape on top of that. Or, he used a BIG ■■■ SPHERE and plopped the landscape on top of that. Since he did go to any other location on the planet I have to assume the rest is probably flat with a material that looks kinda like the landscape he was in. Either way, I would LOVE to see how that level was made please!
Right. As I said in my OP, I figured he was probably using a high res planar mesh with the spherical shader on it. I’d still like to see how it was done though.