Is terrain generation on GPU possible/supported?

I am interested in using Unity to continue developing my project which involves life size, continuous level of detail, procedurally generated planets. In order to be able to fly across the surface of planets with reasonable speed and with the terrain detail keeping up, it would be necessary to generate it on the gpu rather than on the cpu. So I am wondering if this is possible and if so how convenient/inconvenient it would be to ‘bend’ Unity to this end? Would it require a pro-licence?

Of curse it is possible
you can generate the terrain using a compute Shader
and it would be much faster than using the CPU method
however copying the data back to the CPU (to generate colliders) would most probably result to poor performance. so as long as you are just rendering it would be OK
p.s : you can generate the terrain using a Perlin noise