Hi Mark, The osgViewer::View::setUpViewFor3DSphericalDisplay(..) provides a slave setup of 6 slave cameras that render to texture cube map and a final slave camera that renders this cubmap to distortion correction mesh. The cubemap rendering is for full 360 degree view, The source code can be found at OpenSceneGraph/src/osgViewer/View.cpp. You can also run osgviewer with the --3d-sd command line option and it'll run with this view setup. The distortion correction is appropriate for Pufferfish display that uses a single projector with a fish eye lens.
Robert. On Mon, Feb 7, 2011 at 7:53 PM, Bolstad, Mark <[email protected]> wrote: > > I'm revisiting my old message here. I have in place a version that uses the > view offset parameter of addSlave in viewer, but I'm getting some strange > results (it appears like a three-point perspective, one per camera ). It's > worked enough to get the system running, but the results are somewhat > distracting. So rather than listing my code, could someone modify osgcamera > to show the proper way to have 3 cameras with a FOV greater than 180 > degrees? > Mark > Mark A. Bolstad > Scientific Computing > Janelia Farm Research Campus > Howard Hughes Medical Institute > 19700 Helix Drive, Ashburn, VA 20147 > email: [email protected] > office: +1.571.209.4623 > web: http://www.hhmi.org/janelia/ > > > > > > > On Nov 15, 2010, at 8:04 PM, Bolstad, Mark wrote: > > I've dug around in the lists and various other areas and have yet to come up > with a solution. > We have a cylindrical display using 3 projectors with a viewing angle of 225 > degrees. Most of the code is based off of osgdistortion, but I can't seem to > get a very large FOV. I've tried several approaches: > 1. Setting the viewing angle of the master camera to perspective with the > large FOV. Works up to 140 degrees but after that the perspective is to > distorted (as would be expected). Interestingly, at FOV > 180, the up vector > flips and the FOV gets smaller (somewhat expected if you think about the > math). > 2. Setting the offset parameters in addSlave (strange results) > What I think I need is to set each one of the three views to have a viewing > angle of 75 degrees, and to rotate two of the views +/- 75 degrees from the > center. > Any help/hints on setting this up would be appreciated. > Mark > Mark A. Bolstad > Scientific Computing > Janelia Farm Research Campus > Howard Hughes Medical Institute > 19700 Helix Drive, Ashburn, VA 20147 > email: [email protected] > office: +1.571.209.4623 > web: http://www.hhmi.org/janelia/ > > > > > > > > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
