I recently used this tutorial to import some USGS terrain into a few of my OSGrid regions: http://www.virtualwhite.com/?p=100 The process worked fairly well but I had some difficulty making a usable region as the scale I used was probably too small and the terrain was too coarse, but it does provide a nice scenery when viewed from nearby regions. I used the big island of Hawaii in one region and Santa Catalina in 2 regions; in order to make a usable terrain I would probably have to stretch them across many regions. Another problem I had was scaling in the vertical axis; in order to make a somewhat believable horizon and also match the seams with the undersea levels of the neighboring regions, I had to adjust the grayscale levels of the terrain images with a curve function in Photoshop. I did this by eye and did not attempt to make an accurate scale representation but rather a visually similar horizon. I'm not really happy with the results but I suspect one could achieve much better by further experiments with scaling.
On Thu, Jan 29, 2009 at 7:14 AM, Dave Coyle <coyle+open...@knifejaw.com<coyle%2bopen...@knifejaw.com> > wrote: > On 2009-01-25 16:13:35 -0500, m...@tola.me.uk wrote: > > As for OpenSim, I'm still exploring (though I'm running out of time). The > Orcas > > island example that Nebadon posted a link to is quite neat (or at least > the > > improved version linked to from the blog post) and the Berkeley > simulation from > > lidar images also provides a good example. > > Another link which might be useful.. generating OpenSim terrain maps > from USGS DEM data: > > http://www.ics.uci.edu/~lopes/terraingen/ > > -Coyle > _______________________________________________ > Opensim-dev mailing list > Opensim-dev@lists.berlios.de > https://lists.berlios.de/mailman/listinfo/opensim-dev >
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