Re: [osg-users] osgmovie and stereo
Hi, AFAIK osgmovie dont work with stereo video. In my experience most difficulty with video in stereo mode is syncronization left and right frames if video streams for each eye is separated. Dont know if it will be problem with your live video streams. Other stuff is same as with any osg based stereo application, except that you use different scenes for each eye which is basically screen aligned quad with texture that contains current video frame for current eye. Cheers, Sergey -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=35763#35763 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] osgmovie and stereo
Hi Sergey, In my experience the best way to do stereo movies is to render the two eyes into side by side to single video frame, this way you don't have any sync issues. Robert. On Wed, Jan 19, 2011 at 2:41 PM, Sergey Polischuk osgfo...@tevs.eu wrote: Hi, AFAIK osgmovie dont work with stereo video. In my experience most difficulty with video in stereo mode is syncronization left and right frames if video streams for each eye is separated. Dont know if it will be problem with your live video streams. Other stuff is same as with any osg based stereo application, except that you use different scenes for each eye which is basically screen aligned quad with texture that contains current video frame for current eye. Cheers, Sergey -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=35763#35763 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] osgmovie and stereo
Hi Robert, In case you have like 3d movie - ofc its best do as you said, but if you using something like video streams from two webcams for live stereo video you just cant do it that way. Anyway its not that much related to osg, it's about how would you sync your video streams in case streams for each eye separated, or fetch frames from your cameras if you getting live picture. Cheers, Sergey -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=35767#35767 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] osgmovie and stereo
Hi, Thanks Robert. I also saw a 'osgmovie' sample along with other examples built on OSG 2.9.10. When I hit a 'osgmovie --help', I found an option '--stereo'. Will this be any simpler than using 'osgstereoimage' ? Thank you! Cheers, Vijay -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=35745#35745 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] osgmovie and stereo
Hi Robert, I've wondered about this for a while - why does osgstereoimage map all the images to a curved plane? Have I missed something obvious about stereo images? Cheers. Kim. On 11 January 2011 17:14, Robert Osfield robert.osfi...@gmail.com wrote: Hi Vijay, You can play videos in stereo just fine, see the osgstereoimage for an example that use side by side images for the left and right images, and then uses cull masks to rendered alternate subgraphs that pick out the appropriate portion of the image for left and right eyes. Video's are just images that are updated by a background thread so all this code will work just fine. Present3D also has support for doing stereo image and videos. Robert. On Tue, Jan 11, 2011 at 4:52 PM, Vijay Kalivarapu vijayki...@gmail.com wrote: Hi, I have two live video streams that are set apart for left and right eye. Does anyone know if osgmovie can play them in active/passive stereo? If not, what is the best way to play two video streams in stereo? Thank you! Cheers, Vijay -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=35543#35543 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] osgmovie and stereo
Hi Kim, On Wed, Jan 12, 2011 at 12:02 PM, Kim Bale kcb...@googlemail.com wrote: I've wondered about this for a while - why does osgstereoimage map all the images to a curved plane? Oh a looong way back I wrote the example for a Reality Center that had a cylindrical screen, I've hardly touched the example since. Have I missed something obvious about stereo images? You didn't missing anything obvious ;-) Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] osgmovie and stereo
Hi, I have two live video streams that are set apart for left and right eye. Does anyone know if osgmovie can play them in active/passive stereo? If not, what is the best way to play two video streams in stereo? Thank you! Cheers, Vijay -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=35543#35543 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] osgmovie and stereo
Hi Vijay, You can play videos in stereo just fine, see the osgstereoimage for an example that use side by side images for the left and right images, and then uses cull masks to rendered alternate subgraphs that pick out the appropriate portion of the image for left and right eyes. Video's are just images that are updated by a background thread so all this code will work just fine. Present3D also has support for doing stereo image and videos. Robert. On Tue, Jan 11, 2011 at 4:52 PM, Vijay Kalivarapu vijayki...@gmail.com wrote: Hi, I have two live video streams that are set apart for left and right eye. Does anyone know if osgmovie can play them in active/passive stereo? If not, what is the best way to play two video streams in stereo? Thank you! Cheers, Vijay -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=35543#35543 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
