[osg-users] isolate specific LOD from a VPB generated database

Trajce Nikolov NICK trajce.nikolov.nick at gmail.com
Tue Nov 29 13:37:59 PST 2016

> Maybe you need add each LOD to osg::Switch, turn off
all of them, then turn on only that which is necessary to you.

@Nickolai: It will not help - there will still be an LOD beneath which
triggers the active children based on the eyepoint range. And I want to
have the loaded model intact - not processing it

> and on your own :-)

@Robert: :-) .. Actually I wrote my solution just in my previous email to
Nickolai. I think I will end up with custom CullVisitor that will lie about
the ranges, sort of "freezing" the eyepoin altitude on some fixed value
suitable for the LOD range on the ellipsoid ...

Thanks guys .. I am ok now ;-)


On Tue, Nov 29, 2016 at 10:18 PM, Robert Osfield <robert.osfield at gmail.com>

> On 29 November 2016 at 19:18, Trajce Nikolov NICK
> <trajce.nikolov.nick at gmail.com> wrote:
> > Clear on forcing the loading as in the LOS intersection utilities. Let
> say I
> > load my area of interest at the LOD I want, how to force OSG now to
> render
> > only that LOD ? Any hints on this?
> For rendering perhaps you could try adding extra planes to the
> polytopes managed within osg::CuillStack.
> I don't know anyone who's tried this though so bleeding edge.. and on
> your own :-)
> Robert.
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trajce nikolov nick
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