Hi Martin,

regarding the callback issue on slave cameras please check this thread:
http://lists.openscenegraph.org/pipermail/osg-users-openscenegraph.org/2008-November/019337.html

Cheers,
Ricky

On Tue, Oct 25, 2011 at 16:21, Wojciech Lewandowski
<lewandow...@ai.com.pl>wrote:

> Hi, Martin
>
> I am assuming you are complaining about limitiation of techniques derived
> from ViewDependentShadowTechnique. If thats a such huge problem for you then
> you may try to fix ViewDependentShadowTechnique to use RenderStage ptr
> instead of CullVisitor ptr to index ViewDependentData. That requires some
> bravery but I think there is huge chance it may be quite easy to do... Just
> look at ViewDependentShadowTechnique / ViewDependentShadowTechnique.**cpp
> and see how CullVisitor pointer is used to recognize yet another view
> (slave) is drawn and shadowed. Nested cameras use the same CullVisitor as
> parent cam and thats the reason it does not work for nested cams, but
> RenderStages are unique (I believe) so you may try to use current
> RenderStages obtained from CullVisitior to index shadow instances....
>
> I could help you with this, but not in this month... So have fun;-)
>
> Cheers,
> Wojtek
>
>
> -----Oryginalna wiadomość----- From: "Martin Großer"
> Sent: Tuesday, October 25, 2011 12:02 PM
> To: osg-users@lists.**openscenegraph.org<osg-users@lists.openscenegraph.org>
> Subject: [osg-users] Problems with RTT, Shadowmaps and Callbacks
>
>
> Hello,
>
> I am so dissatisfied at the moment. I render my scene into a texture and
> put it on a quad. I want use shadow maps in my scene, so I have to use a
> slave camera, because shadowmap technique doesn't work with nested cameras.
> But my problem is, all my callback function doesn't work now. The only work
> with nested cameras. It is a big dilemma, isn't it? What can I do? Is there
> a typical solution for this problem?
>
> Thanks
>
> Martin
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