Hi, Alexej
Try this callback as cull callback on your camera, call reset() after you
change attachments
class CameraResetCallback: public osg::NodeCallback
{
public:
CameraResetCallback():m_resetFlag(true){}
void operator() (osg::Node* node, osg::NodeVisitor* nv)
{
if (m_resetFlag)
{
osg::Camera* fboCam = dynamic_cast<osg::Camera*>( node
);
osgUtil::CullVisitor* cv =
dynamic_cast<osgUtil::CullVisitor*>(nv);
if ( fboCam && cv)
{
cv->getCurrentRenderBin()->getStage()->setFrameBufferObject(NULL);
cv->getCurrentRenderBin()->getStage()->setCameraRequiresSetUp( true );
m_resetFlag = false;
}
}
traverse(node,nv);
}
void reset(){m_resetFlag = true;}
private:
bool m_resetFlag;
};
11.10.2011, 18:02, "Alexej Fink" <[email protected]>:
> Hi folks,
>
> additional observation:
>
> In case, where for each frame in the update-callback the color-buffer
> attachment is bound to new Image instance, and all outcoming pictures are all
> gray, except the first one -- I now store the reference to the initial
> color-buffer bound image, and write it's content together with the newly
> created per frame images. The per frame created and bound images are still
> gray, but the initial image receives the frame content instead. So the unbind
> and bind to new image in the update callback seems not to work, here:
>
> Code:
> // in update callback
> cam->detach( osg::Camera::COLOR_BUFFER);
> cam->attach( osg::Camera::COLOR_BUFFER, mImage.get());
>
> Only the first bound image receives the frame content, independent of
> rebinding the color_buffer.
>
> Can anyone help with some idea, what is goin wrong?
>
> Cheers,
> Alexej
>
> ------------------
> Read this topic online here:
> http://forum.openscenegraph.org/viewtopic.php?p=43314#43314
>
> _______________________________________________
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