Hi Paul, The field of view is governed by the cameras projection matrix. The default projection matrix used is controlled via the OSG_SCREEN_DISTANCE, OSG_SCREEN_HEIGHT and OSG_SCREEEN_WIDTH if they are set, otherwise its defaults for these are chosen, or the application itself sets the projection matrix and hence the fov-x/fov-y.
It might be appropriate to tweak the language of this comment to better reflect the above. Robert. On Dec 10, 2007 9:40 PM, Paul Martz <[EMAIL PROTECTED]> wrote: > > > Hi Robert -- If I do "osgviewer --help-env", one of the displayed > environment variables is OSG_SPLIT_STEREO_AUTO_ADJUST_ASPECT_RATIO, with the > following description: > > Default to ON to compenstate for the compression of the aspect ratio when > viewing in split screen stereo. Note, if you are setting fovx and fovy > explicityly OFF should be used. > However, no where in the --help-env output is any mention of either "fovx" > or "fovy", or how you would set them. Can you please elaborate on these > values refer to? > > This is for my environment variable reference. In my description for > OSG_SPLIT_STEREO_AUTO_ADJUST_ASPECT_RATIO, I'd like to include text telling > users that this should be set to OFF if they are setting "fovx" or "fovy", > but I need to know what "fovx" and "fovy" are referring to and how a user > would set them. Thanks. > > I see this is used in SceneView to compute the left and right eye projection > scale factors, but I don't see any other way to set these scale factors. > Perhaps the message is simply out of date. > > Paul Martz > Skew Matrix Software LLC > http://www.skew-matrix.com > 303 859 9466 > > _______________________________________________ > 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
