Caporegime
Indeed but you can get LOD real-time textures that can be set seamless and random that would work fine. There for instance is a plug in for UE4 even that did that and would work. I also use it for rendering materials in the 3D models I produce.
Yeah, there are plug-ins for UE but you can also do it yourself by building a signed distance based texture layering, like i've done here....
Its easy to say be who knows if that would actually work on a planet.
See that ^^^^ no tiling.