Re: [osg-users] Paged Terrain and ground-tied entities

[Robert Osfield]

HI Justin,

There isn't a new tile loaded callback, but you can use a
osgDB::Registry::ReadFileCallback to catch and handle all database
requests, in here you could add your own tracking code.

Robert.

On 8/3/07, KSpam <[EMAIL PROTECTED]> wrote:
> My application used paged terrain, and I require some entities to be tied to
> the ground.
>
> I am currently using an update callback in order to poll the current terrain
> height (osgUtil::IntersectVisitor) to ensure that the ground-tied entities
> are at the correct altitude.  Unfortunately, this is a waste of processor
> resources (and framerate).
>
> I would like a way to determine that new terrain nodes have been loaded in
> order to minimize extraneous terrain polling.  Is there a "on new terrain
> callback"?
>
> Can someone point me to an efficient strategy?
>
> Thanks,
> Justin
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[osg-users] Paged Terrain and ground-tied entities

[KSpam]

My application used paged terrain, and I require some entities to be tied to 
the ground.

I am currently using an update callback in order to poll the current terrain 
height (osgUtil::IntersectVisitor) to ensure that the ground-tied entities 
are at the correct altitude.  Unfortunately, this is a waste of processor 
resources (and framerate).

I would like a way to determine that new terrain nodes have been loaded in 
order to minimize extraneous terrain polling.  Is there a "on new terrain 
callback"?

Can someone point me to an efficient strategy?

Thanks,
Justin
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