Quote - Thanks Lux, just edge extrusion. While you're here, the rock and concrete ares are overlapping geometry atm. If I take the rock section over to sculptris, will it cope?. I don't need a complete mesh?

I'm going to go 10m below the current waterline, with the rock, to allow for transparency etc

This will be right up Terragen/Vue street I think.

I don't think it will load in Sculptris.  At least not in my experience with bringing over separate geo as one object, which you are describing.  It either crashed out upon loading, or gave me an error message and refused to load it.  It also won't load any geo that has more than 18 edges pointing to a single vert.  Normally, I'd never have a pole like that anyway, but there are few times, such as a cylinder with tris at the cap ends, where you might have such a situation, but Sculptris won't handle it.  That's kind of why I switched over to using 3dCoat instead.

PS:  I could be wrong about the separate geo, so best to just give it a shot.  However, I know from past history that it doesn't like to work with open, overlapping shapes.

______________________________________

My Store
My Free Models
My Video Tutorials
My CG Animations
Instagram: @luxxeon3d
Facebook: https://www.facebook.com/luxxeon