On 2/1/2012 7:02 AM, Ethan Fahy wrote:
> I had been building terrain complexes using osgdem using both the -d and -t 
> flags to combine elevation and textures.  This works great when I have 
> relatively low resolution.  I am now running into scenarios where I am using 
> 1 meter lidar elevation data and want the maximum number of levels.  This 
> takes hours to generate, but I may be looking at the same area over and over. 
>  However, the texture that I wrap onto that same are will be changing.  Do I 
> need to run osgdem for each texture?  As far as I can see in the 
> documentation there isn't any way to add texture to an existing 
> osgdem-generated terrain complex; am I wrong?  I know that for each level, 
> osgdem is breaking up the original texture and doing level of detail 
> wrappings for it, so maybe it is impossible.  I may end up digging into the 
> source code for osgdem to see what can be done but wanted to pose this 
> question to the forum to see if anyone has any ideas about whether this can 
> be done already or how feasible it is 
to 
>  do this by changing the existing source code.  Thanks!

  One word: osgEarth. http://osgearth.org/

  It can drape new imagery onto VPB-built terrain models, or can just build the 
terrain
models on the fly with whatever imagery you want.

  If you want pre-compiled binaries, they're available through my company's 
support program.

-- 
Chris 'Xenon' Hanson, omo sanza lettere. [email protected] 
http://www.alphapixel.com/
  Digital Imaging. OpenGL. Scene Graphs. GIS. GPS. Training. Consulting. 
Contracting.
    "There is no Truth. There is only Perception. To Perceive is to Exist." - 
Xen
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