Hi,
I am a user of osgDEM and used this to generate a terrain database.
When the terrain data is first loaded by osgViewer, there would be an
initial load time. I am trying to reduce this load time drastically.
I prepared two sets of terrain database for comparison of the initial load
time. The first set has a flat terrain (i.e. all vertices have height z = 0)
and the second set has uneven terrain (i.e. different vertices have different
heights). Both database uses the same texture and have been compiled with
osgDEM with the same parameters, with the exception the second set was provided
with a DEM map.
What I have found out is that the first set initial load time is much
faster (more than 10x) than the second set. Why is this so, even the size of
the textures and the number of vertices remain the same for the 2 sets?
Thank you!
Cheers,
Boon Wah
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Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=49641#49641
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