Hi,
In our application, I need to get the cameraViewMatrix in the
updateTraversal. I have done that with an update callback.
But I think I have the ViewMatrix of the last frame, not the current frame,
because of some graphics problems.
I have look in Viewer::updateTraversal() and I have found that the
updateTraversal is done before the camera matrix is set by the manipulator,
see the code :
void Viewer::updateTraversal()
{
......
if (getSceneData())
{
getSceneData()->accept(*_updateVisitor);
}
.......
if (_cameraManipulator.valid())
{
setFusionDistance( getCameraManipulator()->getFusionDistanceMode(),
getCameraManipulator()->getFusionDistanceValue()
);
_camera->setViewMatrix(_cameraManipulator->getInverseMatrix());
}
......
}
Is this intend ?
I have try to set the camera matrix from the manipulator before the
traversalUpdate and everything works fine.
I wan't to know if there is resons for this specific order, or if we could
set the camera matrix from the manipulator before the traversalUpdate. If
so, I could submit this change to osg-submissions.
Regards.
--
Christophe Loustaunau.
_______________________________________________
osg-users mailing list
[email protected]
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
