Hi Belthil,
.osg doesn't store image files, only external filenames, so if you created
the image programatically then it won't have any external file to refer to.
The other possibility is that the image could have been removed at runtime
when that texture then texture download the imagery - this is the unref'd on
apply feature of osg::Texture, which is switch on by the Optimizer.
The .ive format does support writing out of imagery, its also more compact
and faster to load than the .osg format making it much more suitable for
paging.
Robert.
On 5/4/07, belthil <[EMAIL PROTECTED]> wrote:
Hello!
PagedLOD seems to be very interesting! I tried to load a database
whose the extension is .osg, and the database is displayed. But the points
stocked into the database are displayed just like pixels. And yet, the
points are pointsprites and they are not displayed as pointsprites. I have
noticed that in the .osg file there is not the link to the picture
file (.jpg) for the texture... What is the solution to tell the .osg file to
use my picture to have pointsprites as i want?
I thank you!
Bye
> >
> > Hi again!
> >
> > Well, far plane frustrum culling is not what i really want.
Because
> > the problem with it is that all the stars (the points) that will be
beyond
> > the far plane will be culled. But i need to leave some points
displayed
> > according to the magnitude of a star.
> > One good solution would be to use LOD as Robert said. But what i
want
> > would work with LOD only if i load all the databases at the launching
of the
> > application, because we would know exactly the nodes then. And what i
need
> > is to load dynamically the nodes of the Octree and i cannot assign a
LOD to
> > a node that does not exist. That is the main problem.
> >
>
> PagedLOD supports dynamic loading of subgraphs. You can build you whole
> octree with them and never need to hold the whole octree in memory at
any
> one time. You'll be able to scale up your universe to the size of disk
> space.
>
> Robert.
>
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