My personal cinematic sci fi environment inspired by Halo.Photorealism with Quixel megascans created with Unreal Engine 4.24 all is realtime no baking and no use of raytrace, lightning and scene created from scratch.For Mountains i used World Creator and for trees used Speedtree.
www.sciontidesign.com
The Portal created with Unreal Engine 4.24 all realtime