I haven't thought through how the interface would look with osgViewer. In my external implementation, I do have a class that holds on to the distortion geometry and allows new meshes to be given to change the pattern (for dynamic calibration).
One thought is to have an osgViewer::DistortionManager class that could be retrieved through an osgView::getDistortionmanager() accessor method. If a distortion system is created, it would be managed by the osgViewer::DistortionManager object and manipulated by getting that object through the osgViewer object. John On Wed, Mar 11, 2009 at 10:49 AM, Robert Osfield <robert.osfi...@gmail.com>wrote: > Hi John, > > I'm certainly open to this approach - it's one I've considered for a > while, so please post what code you have. Are you adding an extra > class to manage the distortion correction? > > Robert. > > On Wed, Mar 11, 2009 at 3:10 PM, John Aughey <j...@aughey.com> wrote: > > Robert- > > > > I'm glad this topic was brought up. I am doing some work with non-linear > > distortion correction and have taken the code in osgViewer for doing the > > spherical distortion and made it more generic to accept a grid of points > > that represent the distortion mesh. This is just what the spherical > > distortion routines are doing in osgViewer, except rather than computing > the > > points, it takes a rectangular grid. > > > > What I would like to do is integrate this distortion code into osgViewer > to > > allow for more generic distortion grids to be used. The existing > spherical > > distortion routines could use this by computing the appropriate > distortion > > grid and supplying that grid to this more general distortion generator. > The > > result would be that the existing spherical distortion would still work, > and > > more general distortion patterns can be given too. > > > > If you think this would be useful, let me know and I'll integrate the > > changes and make a patch. > > > > John > > > > On Wed, Mar 11, 2009 at 4:06 AM, Robert Osfield < > robert.osfi...@gmail.com> > > wrote: > >> > >> Hi Bino, > >> > >> The OSG only currently has distortion correction built in for > >> spherical displays with a single projector. > >> > >> General distortion correction can be implemented on top of osgViewer > >> in the same way as the I implemented the spherical display distortion > >> correction - using a series of slave cameras that to a render to > >> texture then a second distortion correction/edge blending pass for > >> each of the displays. > >> > >> Robert. > >> > >> On Wed, Mar 11, 2009 at 7:06 AM, Albino Rodrigues <b...@vrspace.com.au> > >> wrote: > >> > Hi, > >> > > >> > > >> > > >> > I was wondering if OSG has distortion correction built in for multi > >> > projector displays so that the edges blend nicely. > >> > > >> > > >> > > >> > I vaguely recall reading that OSG has built in support for this but > >> > can’t > >> > seem to find any information on it. (other than the post: > >> > > http://www.mail-archive.com/osg-us...@openscenegraph.net/msg10361.html) > >> > > >> > > >> > > >> > Thanks in advance, > >> > > >> > Bino > >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> > _______________________________________________ > >> > 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 > > > > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >
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