Re: [osg-users] 3D Frame Packing with OSG
I don't think 3DVision relies on the depth buffer. As far as I remember the driver will render the left and right eye perspective separately, thus cutting performance in half. This has some similarities to enabling stereo modes in OSG. Christian ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] 3D Frame Packing with OSG
On Mon, Mar 5, 2012 at 8:48 PM, Jason Daly jd...@ist.ucf.edu wrote: On 03/03/2012 10:38 AM, Christian Buchner wrote: Geforce cards support stereoscopic 3D through HDMI as part of the 3DVision support for DirectX gaming only. It is called 3DTV Play and it isn't free (there's a 14 day trial version available). And this does not include OpenGL. Sure, but that's a different animal than what Erin is after. 3DTV play assumes the game wasn't written for 3D output and synthesizes the left and right channels based on the depth buffer. It also provides a Blu-ray 3D player (and I'm sure the fee is at least partly to cover Nvidia's licensing costs for this). From what I've read in several forums. If you create the 1280x1470 format (or 1920x2205 format) directly, you can get a GeForce card to render 3D content on a 3D monitor. Jason, could you post links to this info, please? I am interested in that as well. I am afraid that the OpenGL driver on a GeForce will refuse to generate the correct HDMI signal tags for the monitor to recognize, because you aren't running Quadro. If it was possible, it would be quite trivial to bypass the no stereo on GeForce crippling by Nvidia. Regards, Jan ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] 3D Frame Packing with OSG
On 03/06/2012 10:56 AM, Jan Ciger wrote: From what I've read in several forums. If you create the 1280x1470 format (or 1920x2205 format) directly, you can get a GeForce card to render 3D content on a 3D monitor. Jason, could you post links to this info, please? I am interested in that as well. I am afraid that the OpenGL driver on a GeForce will refuse to generate the correct HDMI signal tags for the monitor to recognize, because you aren't running Quadro. If it was possible, it would be quite trivial to bypass the no stereo on GeForce crippling by Nvidia. Hi, Jan, I don't have links, nor do I have personal experience. I haven't actually read the HDMI 1.4a spec either, so I very well may be wrong. That said, most of the information I Googled came from the bino project. There were several reports in their forums of folks using custom ModeLines in the xorg.conf that allowed them to generate packed-frame 3d from their video cards. The precise contents of the xorg.conf were given in at least one post, so you should be able to try it yourself. --J ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] 3D Frame Packing with OSG
Hello, On Tue, Mar 6, 2012 at 6:03 PM, Jason Daly jd...@ist.ucf.edu wrote: Hi, Jan, I don't have links, nor do I have personal experience. I haven't actually read the HDMI 1.4a spec either, so I very well may be wrong. That said, most of the information I Googled came from the bino project. There were several reports in their forums of folks using custom ModeLines in the xorg.conf that allowed them to generate packed-frame 3d from their video cards. The precise contents of the xorg.conf were given in at least one post, so you should be able to try it yourself. OK, I will search for it. Jan ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] 3D Frame Packing with OSG
On Tue, Mar 6, 2012 at 6:03 PM, Jason Daly jd...@ist.ucf.edu wrote: Hi, Jan, I don't have links, nor do I have personal experience. I haven't actually read the HDMI 1.4a spec either, so I very well may be wrong. That said, most of the information I Googled came from the bino project. There were several reports in their forums of folks using custom ModeLines in the xorg.conf that allowed them to generate packed-frame 3d from their video cards. The precise contents of the xorg.conf were given in at least one post, so you should be able to try it yourself. OK, it is this thread: http://lists.nongnu.org/archive/html/bino-list/2011-03/msg00058.html Interesting stuff, if this works, a 3D projector or TV could be an interesting option these days. Regards, Jan ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] 3D Frame Packing with OSG
On 03/06/2012 01:42 PM, Jan Ciger wrote: OK, it is this thread: http://lists.nongnu.org/archive/html/bino-list/2011-03/msg00058.html Interesting stuff, if this works, a 3D projector or TV could be an interesting option these days. Here's another one with specific ModeLine values: http://lists.gnu.org/archive/html/bino-list/2011-06/msg0.html The poster claims to be using these with a GeForce GT240 and a Samsung TV. --J ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] 3D Frame Packing with OSG
On 03/03/2012 10:38 AM, Christian Buchner wrote: Geforce cards support stereoscopic 3D through HDMI as part of the 3DVision support for DirectX gaming only. It is called 3DTV Play and it isn't free (there's a 14 day trial version available). And this does not include OpenGL. Sure, but that's a different animal than what Erin is after. 3DTV play assumes the game wasn't written for 3D output and synthesizes the left and right channels based on the depth buffer. It also provides a Blu-ray 3D player (and I'm sure the fee is at least partly to cover Nvidia's licensing costs for this). From what I've read in several forums. If you create the 1280x1470 format (or 1920x2205 format) directly, you can get a GeForce card to render 3D content on a 3D monitor. --J ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] 3D Frame Packing with OSG
Geforce cards support stereoscopic 3D through HDMI as part of the 3DVision support for DirectX gaming only. It is called 3DTV Play and it isn't free (there's a 14 day trial version available). And this does not include OpenGL. Christian ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] 3D Frame Packing with OSG
Hi, I've found a solution to using the Sony HMZT1 with OSG and a Quadro FX 3800. It basically comes down to setting the following as per the Quad Buffered 3D Stereo instructions in C:\NVIDIA\DisplayDriver\driver version\your OS\International\NV3DVision\nvst3.chm which say: To enable quad-buffered professional stereo: From the NVIDIA Control Panel navigation tree pane, under 3D Settings, select Manage 3D Settings to open the associated page. Click the Global Settings tab. From the Settings box, click Stereo-Display mode and then select the appropriate option, depending on your stereo hardware. From the Settings box, click Stereo-Enable and then select On. Click Apply. From the NVIDIA Control Panel navigation tree pane, under Stereoscopic 3D, select Set up stereoscopic 3D to open the associated page. Make sure the Enable stereoscopic 3D check box is cleared, then click Apply. Sterescopic diplay type: should indicate Quadro professional stereo. It may be necessary to make the HMZT1 the primary display. Then use: Code: osg::GraphicsContext::WindowingSystemInterface* wsi = osg::GraphicsContext::getWindowingSystemInterface(); wsi-setScreenResolution(osg::GraphicsContext::ScreenIdentifier(screenNum), 1280, 720); or similar to setup the correct resolution. Try testing with the osgViewer using the QUAD_BUFFER command line option and cow.osg and... ...Hello 3D Daisy! Now on to integrating with our actual software. I would be curious if anyone figures out a way to make the HMZ T1 work with GeForce cards and OSG as my laptop doesn't have a Quadro. Cheers, Erin -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=46000#46000 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] 3D Frame Packing with OSG
Hi, I am trying to get OSG to output in 720p 3D frame packed format. My understanding is that this requires a screen resolution of 1280x1470 ( 2x(1280x720) + 30 buffer) but I must be missing something as the Sony HMD I am sending the output to is not recognizing it as a 3D format although it is displaying a down-sampled 1280x1420 desktop. I have been using the OSGViewer with command line arguments to specify a stereo mode of vertical split and am setting the screen resolution with: Code: osg::GraphicsContext::WindowingSystemInterface* wsi = osg::GraphicsContext::getWindowingSystemInterface(); wsi-setScreenResolution(osg::GraphicsContext::ScreenIdentifier(screenNum), 1280, 1470); If anyone has some experience with this I would be grateful for some pointers. Thank you! Cheers, Erin[/code] -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=45943#45943 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] 3D Frame Packing with OSG
On 03/01/2012 05:01 PM, Erin Morrow wrote: Hi, I am trying to get OSG to output in 720p 3D frame packed format. My understanding is that this requires a screen resolution of 1280x1470 ( 2x(1280x720) + 30 buffer) but I must be missing something as the Sony HMD I am sending the output to is not recognizing it as a 3D format although it is displaying a down-sampled 1280x1420 desktop. I have been using the OSGViewer with command line arguments to specify a stereo mode of vertical split and am setting the screen resolution with: Code: osg::GraphicsContext::WindowingSystemInterface* wsi = osg::GraphicsContext::getWindowingSystemInterface(); wsi-setScreenResolution(osg::GraphicsContext::ScreenIdentifier(screenNum), 1280, 1470); If anyone has some experience with this I would be grateful for some pointers. I don't have any direct experience with that particular HMD, but here are some thoughts... Your code sounds like it's about right, although the vertical split mode won't give you the 30-pixel gap that you need by default. You might have better luck by setting up two slave cameras with the needed parallax for stereo, and adjusting the viewports to provide the 30-pixel gap ( 0,0-1279,719 and 0,750-1279,1469). I'd guess that the bigger issue, though, is that your video card probably isn't able to support a resolution of 1280x1470 (at least not without some low-level timing adjustments). If you're on Linux, there are a few hits on Google if you search for 720p frame packing 3d. Here's one promising link: http://forums.nvidia.com/index.php?showtopic=213574 --J ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] 3D Frame Packing with OSG
Jason, Thanks for the response. That link is helpful and i have done some research on the anatomy of modelines but no success yet. I am running my code on windows and while we occasionally build for Linux I'm hoping I don't NEED to go that route to crack this problem. It appears that my graphics card (qaudro something or other, not in front of it right now) can output 1280x1470 as I can see a desktop with that resolution in the HMD when testing it as a custom resolution. The osg viewer is launching without complaint at that resolution as well. Unfortuntely the HMDis not recognizing it as a 3D source. I will try your suggestion of forcing the black band between viewports. I wonder if the HMZT1 processing box is actually looking for black pixels in the middle of the source when it is determining if it should consider it a 3D format? I am having trouble finding this type of information for both the format and the device itself. Cheers, Erin -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=45950#45950 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] 3D Frame Packing with OSG
On 03/01/2012 07:58 PM, Erin Morrow wrote: Jason, Thanks for the response. That link is helpful and i have done some research on the anatomy of modelines but no success yet. I am running my code on windows and while we occasionally build for Linux I'm hoping I don't NEED to go that route to crack this problem. It appears that my graphics card (qaudro something or other, not in front of it right now) can output 1280x1470 as I can see a desktop with that resolution in the HMD when testing it as a custom resolution. Yeah, if you're on Windows, the link I gave you isn't going to be much help (not directly at lease). It's good that you can configure that resolution on your card. One hurdle out of the way. The osg viewer is launching without complaint at that resolution as well. Unfortuntely the HMDis not recognizing it as a 3D source. I will try your suggestion of forcing the black band between viewports. I wonder if the HMZT1 processing box is actually looking for black pixels in the middle of the source when it is determining if it should consider it a 3D format? I am having trouble finding this type of information for both the format and the device itself. You might want to look up the HDMI 1.4a specifications on the packed stereo format to see what exactly is required to meet them. It may be more than just having the right resolution and the 30 pixel gap. Good luck! --J ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
