Hi Robert,
I think to implement a clod technique for osg, i did not check all clod
technique yet. My first candidate to evaluate is libmini. Would you have
some advise about clod technique to use ? Ideally i would like to plug
it to osgTerrain.
Cheers,
Cedric
Cedric Pinson wrote:
Thank you Robert for those informations.
Cedric
Robert Osfield wrote:
Hi Cedric,
VPB/osgTerrain doesn't yet have any blending between LOD levels so
"popping" is still apparent. The effect is less apparent now when
using the --terrain option in VPB, as it creates tiles of higher
resolution so the pixel errors associated with moving between LOD
levels is lower.
W.r.t libmini, the author of this library, Stefan Roettger, was
planning on writing an OSG NodeKit to interface the library with the
OSG. This was last year, but haven't had an update recently from
Stephan so I don't know the status of this work.
With the development of osgTerrain I designed it so we could implement
new TerrainTechnique implementations, just now we just have a crude
brute force GeometryTechnique implementation, but the path is
available to integrate CLOD techniques as custom TerrainTechnique
implementations, this would allow one to integrate external techniques
but reuise the osgTerrain::TerrainTile data structure, so even in
theory allow you to use VPB generated database with a tool like
libmini.
Robert.
On Tue, Aug 19, 2008 at 8:11 PM, Cedric Pinson
<[EMAIL PROTECTED]> wrote:
Hi all,
Is there someone that has already try this library
(http://www.stereofx.org/terrain.html) in production ? On the
example it
seems a little slow, i would just want feedback compared to vpb
osg. Then i
have a second question, i did not try a recent version of vpb but i
remember
last time i used it there was some little popup when switching lod
level. Is
there something new to attenuate this effect ?
Then my last question, do you think that it would be useful to use new
algorithms that works with data in live like libmini ? I guess it
depends
the needed of the application, but i would like different opinions
Cheers,
Cedric
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