Oh! that's new! I need to upgrade now to osg-3.2 :) Rafa.
2014-04-11 16:39 GMT+02:00 Robert Osfield <robert.osfi...@gmail.com>: > HI Martin, > > The svn/trunk and OSG-3.2 versions of the OSG have a > CameraManipulator::updateCamera(Camera&) method that by default just > sets the Camera's ViewMatrix, but you can modify other parameters in > your CameraManipulator subclass. > > Robert. > > On 9 April 2014 15:41, Martin Siggel <martinsiggel+...@gmail.com> wrote: > > Hi, > > > > we'd like to implement our own camera manipulator class in order to have > > more control of the projection matrix. > > > > What we want to implement is e.g. a zooming function in othografic > > projection. > > This can only be done by adjusting the FOV of the ortho frustum. > > > > Also, we would like to implement a "Grab" panning, where a object > maintains > > under the cursor, while panning the scene (as known from several 2D > > programs). Here again, the projection matrix has to be known inside the > > camera manipulator in order to sync mouse movements with the appropriate > > movements in world coordinates. > > > > What we don't know, how to implement this correctly, since the projection > > matrix is updated somewhere automatically by the values of the > Manipulator > > (position, look-at, up-direction ...) > > > > Do you have some advice? > > > > Cheery, > > Martin > > > > > > > > _______________________________________________ > > osg-users mailing list > > osg-users@lists.openscenegraph.org > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > -- Rafael Gaitán Linares CTO at Mirage Technologies S.L - http://www.mirage-tech.com
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