Ethem Akgun wrote:
> What is the best way to build the terrain in this scenario?

  In the situation where the viewer is guaranteed to stay within the hi-res 
terrain
database extents, I render the lo-res database in an early renderbin, then 
forcibly wipe
the z-buffer and then render the hi-res database.

  it's not elegant (or maybe it is) but it works, and is efficient.

> Ethem

-- 
Chris 'Xenon' Hanson, omo sanza lettere                  Xenon AlphaPixel.com
PixelSense Landsat processing now available! http://www.alphapixel.com/demos/
"There is no Truth. There is only Perception. To Perceive is to Exist." - Xen
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