[osg-users] HeightField Performance

Jason Beverage jasonbeverage at gmail.com
Fri Nov 13 20:01:20 PST 2009

Hi Teodor,

You can also take a look at osgEarth (http://www.osgearth.org ) and see if
it would be suitable for your needs.  It is suited for runtime terrain
database generation and I actually uses osgTerrain under the hood.  There
isn't any editing capabilities in it as of right now but it's at least
another avenue to take a look a look at.

Let me know if you have any questions!



On Fri, Nov 13, 2009 at 6:41 PM, Teodor Hanchevici <
calin.hanchevici at gmail.com> wrote:

> Hi Chris,
> I will try looking into shaders. I wonder if it creating a 8x8 grid of
> HeightFields and "glue" them to something so that they move as a single
> object would solve the problem.
> You mentioned that the data is put into a quad-tree, is it possible to
> limit the depth of the tree somehow? I am willing to live with this. Anyway
> there will be some on the fly pre-processing of data, including building
> quad-trees since 25k x 25k data is common for me.
> Is the quad tree computed in the HeightField or somewhere else? I wonder if
> it is possible to create a different HeightFiled implementation that yield
> better performance. Since I am a beginner with OSG, I would appreciate your
> advice.
> Thank you!
> Cheers,
> Teodor
> ------------------
> Read this topic online here:
> http://forum.openscenegraph.org/viewtopic.php?p=19654#19654
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