Maybe have a look at this: http://orihalcon.jp/projdesigner/
cheers jp Murray Curtis wrote: > I have driving simulators with three projected screens 4.5 metres wide > arranged in half a hexagon that are viewed from slightly off center. The > car is centered but the driver is off to the left or right by about > 300mm. To move the vanishing point in front of the driver I have been > simply rotating the entire scene 3 or 4 degrees. This is not the right > way to do it but the errors are small, it was easy to do and it works. > > Now we're developing smaller systems with the displays right up close to > the driver and I need to fix this properly. > > For the front screen I think its simply an xshear: viewerOffset / > screenWidth. > > The 60 degree side screens are much more complicated. > http://local.wasp.uwa.edu.au/~pbourke/projection/caev/ describes the > issues very nicely with diagrams. > > I need to calculate the asymmetric frustum and give it to > OSG::Camera::setProjectionMatrixAsFrustum or similar. > > Are there any help routines in OSG (that I've not found) to do the trig? > Or any web references that may help? > > Cheers > Murray Curtis > Tag Systems > Melbourne > Australia > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > -- This message is subject to the CSIR's copyright terms and conditions, e-mail legal notice, and implemented Open Document Format (ODF) standard. The full disclaimer details can be found at http://www.csir.co.za/disclaimer.html. This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. MailScanner thanks Transtec Computers for their support. _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
