There is a lot of posts on World Builder as an external terrain creation tool on the forum. I was wondering if anyone had tried Grome as it also looked like a powerful tool with a good range of input and output files?
Was the Valley Demo terrain created entirely in Unigine or was World Builder or Grome used?
Also, as has been previously discussed, it would be good if Unigine supported import of some of the GIS based gridded, DTM (heightmaps). For example,
USGS Digital Elevation Model GeoTIFF Format,
Raw,
terragen (.ter)
kml Google Earth