using file format *.obj or *.3ds, or other mesh files, simply put 'point cloud' data.
Imported into SW as mesh data ie. 'X','Y','Z' points in space,
which you convert with "Scan To 3D" that’s an add-in of the SW Premium software
hope this helps- kelef
If you have SW2014 or later you can see this example. It was just a quick way i thought of, although I have to admit it doesn't look that natural so I don't know if it will suffice for your application. But it is easy to do, just sketch some random curvy lines on a few planes in either direction and make a boundary surface. Just make sure the lines all intersect each other.
Seafloor JS.SLDPRT.zip 14.1 MB