HI Eric, The units are assumed to be meters, so please just convert your values to meters.
Robert. On Thu, Mar 5, 2009 at 11:57 PM, Eric Heft <[email protected]> wrote: > What sets the 'depth' plane when using stereo? > > >From the docs you have measured and entered values for the following in > >inches instead of meters. > > setEyeSeparation(EyeSeperation ); > setScreenDistance(ScreenDistance); > setScreenHeight(ScreenHeight); > setScreenWidth(ScreenWidth); > setProjectionMatrixAsPerspective(...); > setFusionDistance(mode,value); > > I get stereo, its just that the objects are not in the right depth plane. > > My screen is 146 inches from the projector. I place an object at (0,0,-146) > and while the size of the object is correct on the screen. The object is way > behind the surface of the screen ( lots of overlap ). I have to move the > object to (0,0,-14) to get zero overlap/disparity. > > -- Details -- > > Using WinXP + OSG 2.5.1 + 2 Projector horizontal span setup running 2048 x > 768 resolution. > > I load an object created in blender that is a wire frame box 5 units from > edge to edge. > > The test application lets me change the following parameters on the fly. > > ScreenDistance=146.00 > ScreenHeight=64.00 > ScreenWidth=87.00 > EyeSeperation=2.50 > ObjectDistance=146.00 > > With EyeSeperation set to 0.00 , the wire frame box appears on the projector > screen and measures very close to the expected size of 5 inches across. > > When any of the parameters change. I call this: > > Code: > > void ResetGeometry(void) > { > float FOV_X = > 2.0*atan2(ScreenHeight/2.0,(double)ScreenDistance)*180.0/3.14159; > float FOV_Y = > 2.0*atan2(ScreenWidth/2.0,(double)ScreenDistance)*180.0/3.14159; > osg::DisplaySettings::instance()->setStereo(stereo); > osg::DisplaySettings::instance()->setEyeSeparation(EyeSeperation ); > osg::DisplaySettings::instance()->setScreenDistance(ScreenDistance); > osg::DisplaySettings::instance()->setScreenHeight(ScreenHeight); > osg::DisplaySettings::instance()->setScreenWidth(ScreenWidth); > > viewer->setFusionDistance(osgUtil::SceneView::FusionDistanceMode::USE_FUSION_DISTANCE_VALUE,ScreenDistance); > printf("FusionDistance = %6.2f\n",viewer->getFusionDistanceValue()); > > if (stereo) > viewer->getCamera()->setProjectionMatrixAsPerspective( > FOV_Y,2.0*FOV_X/FOV_Y,0.01,1000000); > else > viewer->getCamera()->setProjectionMatrixAsPerspective( > FOV_Y,FOV_X/FOV_Y,0.01,1000000); > } > > > > > At the beginning of the program I call this. ( this will be modified once all > the other setup is verified ) > > > Code: > > void SetView(void) > { > static osg::Vec3 vtrs; > static osg::Quat qrot; > osg::Matrixd R1; > osg::Matrixd R2; > > qrot.makeRotate( osg::DegreesToRadians(0.0), osg::Vec3(1,0,0) > ); > vtrs.set( 0, 0, 0); > R1.makeRotate( qrot ); > R2.makeTranslate( vtrs ); > viewer->getCameraManipulator()->setByMatrix( R2 * R1 ); > } > > > > > ------------------ > Read this topic online here: > http://forum.openscenegraph.org/viewtopic.php?p=8018#8018 > > > > > > _______________________________________________ > 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
