Hello,

Hoping for a bit of help.

What I've been doing:
I have been using osgdem to merge a dted data geotiff with a geotiff with rgb 
color values into an ive terrain complex.  I am using the -t flag to tell 
osgdem that my geotiff should be treated as a texture file.  However, the rgb 
values in the geotiff represent scaled physical properties such as temperature. 
 

What I think I need to do:
I would like to be able to access the color (and thus physical property) of 
each primitive once I read this ive terrain complex into an osg program. I have 
an osg node visitor set up that loops over the geometry of my terrain and can 
loop over all primitives etc, but I do not know how to access the textures and 
their colors from the primitives.

What I think is impossible but would be ideal:
What I would really like is if I could tell osgdem to assign each primitive an 
rgb color value instead of a texture (based on my geotiff file), but I don't 
think that's possible?  

I've been turning various osgdem flags on and off and experimenting with it, 
but thought i would ask the forum to see if anyone has any recommendations for 
me.  Thanks in advance for your help.

-Ethan

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Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=43867#43867





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