Quote -  Vue needs a TIF heightmap from GeoControl for anything to look amazing in Vue.

I tried using the 13mb tiff  version of this jpg as a HMap in VUE and got the spikey result. 
http://2.bp.blogspot.com/-d2Ei4kKx2sQ/T5m4cJVRtrI/AAAAAAAAELM/MTtRly05F_Y/s1600/Olympus+Mons+04+Topographical+Map+by+Mars+Express.jpg 

GeoControl says it can't use the tif as it's not P2 format. I think it needs to be 
a GEOTiff, but don't know where to find it (yet). 

I thought it would be relatively easy to find a DEM for Olympus mons that VUE could use. There are so many related sites, but some are very technical, and don't have
a DEM ready to go. 

Here are some images of what I'm trying to accomplish:
http://olympus-mons.tripod.com/id2.html

And here is a bunch of images.....
 http://www.bing.com/images/search?q=Olympus+Mons+Elevation&id=E1A5A06B938309C91633CDF0972B7D7489E00672&FORM=IQFRBA

I don't know if they are useable as heightmaps...
I thought the gradients were read by VUE as elevations.....whether in color or grayscale. But when I use them, either in GeoControl, VUE, Cararra, etc,
I just get the spiked render.

I also tried Terragen......that was really confusing. I imagine I'll eventually figure it
out, but would appreciate any tips or suggestions.

And when I get it right, I'll post a short tutorial. ;)