Another quick question: do you know of a quick way to get DEM files from Wilbur? Inspired by the usefulness of Wilbur's 3D preview, I've been trying to find a simple 3D flyover program. This is much harder than it sounds. All I really want is something like Wilbur's 3D preview - nothing fancy - that you can just plug a height map into and look at in 3D from various angles.

The most promising-looking program in this regard seems to be Estierra, but it only works with DEM files.