On 2. Aug 2013, at 12:22, Martin Lambers <[email protected]> wrote: >> THe equalizer-3D mode renders a 3D scene consisting of a single >> textured quad into the scene, which does not align with curved >> segments but is planar in 3D space. > > OK, thanks for the explanation. > > How can this be used for distortion-correct projection for curved > screens?
Well, my english was too ambiguous. Forget classical distortion correction for a moment, what I meant was that the movie is planar when displayed in your system, whereas in the default mode it is curved. Some ASCII-art is in order: 2D mode: Screen: \_/ Movie: \_/ 3D mode: Screen: \_/ Movie: ___ i.e., the movie is a trapezoid on the side screens. >> Martin - I didn't understand what switching VR/2D projection does in >> your case, does it switch on/off distortion correction? > > In '2D projection' mode, we pretend the cylinder is planar, and can then > use a 2D rectangular region on this plane as our viewport. > The calibration still has to make sure that a rendered rectangle is > still rectangular on the plane (because it is not really a plane). I still don't understand what the difference is. You say: projector calibration from 'VR' to a '2D presentation' mode which assumes that the cylinder is actually a plane. But the 3D stuff has to come from the application, since the system only gets 2D (DVI) images, so I don't see what it can do to the signal in the planar/non-planar sense. Cheers, Stefan. _______________________________________________ eq-dev mailing list [email protected] http://www.equalizergraphics.com/cgi-bin/mailman/listinfo/eq-dev http://www.equalizergraphics.com
