Okay, it sound more complicated ...
Just to be sure :
class tileVisibleCallback : public osg::Drawable::CullCallback{
public:
tileVisibleCallback();
virtual void operator()(osg::Node* node, osgUtil::CullVisitor* nv);
bool isCulled();
private:
bool _cull;
};
Does it sound good for you ?
(the mix between Cullcallback and osgUtil looks strange for me... but...)
Thanks,
Regards.
Vincent
2008/9/25 Robert Osfield <[EMAIL PROTECTED]>
> On Thu, Sep 25, 2008 at 4:23 PM, Vincent Bourdier
> <[EMAIL PROTECTED]> wrote:
> > Hi Robert,
> >
> > How is it possible to test directly against the view frustum ? manually ?
> or
> > is there a method still implemented ?
> > thanks.
>
> You create an osg::Polytope from the Camera's view and projection
> matrix which will be your frustum, then transform by any transforms
> in the parent path to place the frustum in local coordinate, then test
> the objects bounding sphere/bound box against this frustum. The
> osgUtil::PolytopeVisitor does most of this so could learn a lot form
> this.
>
> Robert.
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