Now I need to test the system with lots of geospatial layers.. ;)
Thanks again.
Rafa.
On 6/1/06, Serge Lages <[EMAIL PROTECTED]> wrote:
On 6/1/06, Rafa Gaitan <[EMAIL PROTECTED]> wrote:
>
>
> > As Robert mentioned, OSG uses "loaders" to bring in files "from disk".
> Loaders are
> > plugins, which you can write, which take a "filename" and deliver a scene
> subgraph when
> > finished. However, nothing says that the filename has to be a filesystem
> path, or that the
> > data actually originates from a file on disk that is specified by that
> path. In my case,
> > the "filename" is a tile ID, encoded as a string. My plugin creates the
> data from both
> > in-memory and on-disk resources, and delivers the resulting data to the
> scene graph.
> >
> > When the scene graph is not using the tile data, PagedLOD discards the
> scene subgraph
> > on its own, and when it is needed again, it calls the plugin to
> load/create the data again.
>
>
> Thanks!, thats a good idea. We will study it.!
>
>
> > > but by now I prefer to continue the current development, because is not
> > > clear to me in a unique generated earth mesh.. apply height fields and
> > > texture tiles.
> >
> > Sorry, I don't understand what you're asking there.
>
>
> Well.. I begin with the view of the complete planet. ovPlanet is an
> implementation of a multiresolution planetary rendering algorithm, with a
> continuous mesh. But by now the web page is not working! :(.
>
> Thanks again.
> Rafa.
>
>
To see a osg based planetary engine, look at my project :
http://www.magrathea-engine.org
And we generate on the fly procedural details for the terrain, all
using the osg database pager without any modification on it.
As Chris says, we use a custom osgDB plugin wich use a encoded string
as filename to know what to generate.
You can find the sources of our project on our site, so feel free to
take a look on how we implement it. (There is also a demo version for
windows)
--
Serge Lages
http://www.magrathea-engine.org
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