Slave camera relies on main camera matrix and matrix offset, so it's meaningless to set their matrix. By contrast, view camera is independent of other view.
在 2011-9-27，23:05，"He, Yefei" <yefei...@uiowa.edu> 写道： > Thanks, Robert, I'll take a look at the examples. Another question: in a > composite viewer, if I set the view and projection matrices directly on the > slave camera, what are the internal differences between doing this and simply > creating another view and setting the view and projection matrices of its > camera? I'm trying to set up a composite viewer with multiple views of the > same scenegraph. I noticed that the main view (the first view added to the > composite viewer) and its slave cameras all render properly, but in the > contents of the other views, the depth sorting is incorrect, most noticeably > the skydome obscures a lot of faces that should be in front of the skydome. > > Yefei > > -----Original Message----- > From: osg-users-boun...@lists.openscenegraph.org > [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Robert > Osfield > Sent: Tuesday, September 27, 2011 3:16 AM > To: OpenSceneGraph Users > Subject: Re: [osg-users] Clipping planes for slave camera > > Hi Yefei, > > On Mon, Sep 26, 2011 at 9:20 PM, He, Yefei <yefei...@uiowa.edu> wrote: >> Is it possible for a slave camera to have different near and far >> clipping planes from the master camera? Are there examples for it? I >> figure it will be more complicated than changing the angle of view or >> adding a shear to the view frustum. > > You have assign different projection matrices to the slave camera either by > setting the projection offset matrix for the slave and keeping the slave > Camera's ReferenceFrame set to RELATIVE_RF (relative the master Camera) or by > setting the view and projection matrices directly on the slave Camera and > setting the ReferenceFrame to ABSOLUTE_RF. > > There isn't a specific example that illustrates what you want but the osghud > and osgdistortion examples should give you an idea of the different things > you can. > > Robert. > _______________________________________________ > 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 _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
