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3DVision rendering mode
#1
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Hello,

I am currently running Windows 10 and can run some opengl applications in full screen stereo rendering using GeForce card and Nvidia 3DVision. I saw that you do have support for the "NVIDIA_3DVISION" rendering mode nowadays, but when launching it I only see the background color, no errors. What could that mean?

I am using H3DWithToolkitsWin/trunk/H3D revision 4331.

Posted on: 1/9 9:57
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Re: 3DVision rendering mode
#2
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First off, I would say this is still a tryout stage that was used once to compare performances, not sure how well kept it has been after that. Secondly did you see this kind of weird message in the description about the mode?

Quote:
NVidia 3DVision format when not using quad-buffered stereo.

Will copy OpenGL buffer and display with DirectX. Executable must be named to one of the NVidia sanctioned 3D programs in order to work, e.g. googleearth.exe.


See trunk documentation here:

http://www.h3dapi.org/uploads/api/Tru ... _1RenderMode.html#details

Posted on: 1/9 10:22
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Re: 3DVision rendering mode
#3
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I see, thanks for the quick info!
After exploring some more, it is actually the good old QUAD_BUFFERED_STEREO that is supported nowadays with geforce cards (yey!) but one needs to run the window fullscreen in "GameMode". I found that was already implemented and can be accessed with setting the environment variable H3D_GAMEMODE=1920x1080:32@120 before running H3DLoad. Nice!

However, my stupid monitor keeps getting into 144hz instead of 120hz, and it seems the only way is to enterGameMode() twice (or several times back/forth) to get into it. I have tried hacking GLUTWindow to have a key to switch between resolutions while running, which would probably do the trick. However the screen just turns black. I have probably not set up the context properly, or not re-initialized the scene or what could be required...?


Posted on: 1/11 15:17
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Re: 3DVision rendering mode
#4
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If you are talking about the nvidia 3d vision system (discontinued product but still working as far as i know) then yes it is QUAD_BUFFERED_STEREO and IIRC GAMEMODE should not be required, only fullscreen and focus on the window.

Posted on: 1/12 9:17
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Re: 3DVision rendering mode
#5
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Yes indeed Nvidia 3D vision, its our only (monitor) option still right? I finally got it to work.

There is a way to disable 144hz altogether: https://forums.geforce.com/default/top ... /3d-vision/disable-144hz/

As you said it was actually enough with H3DLoad -f and QUAD_BUFFERED_STEREO. As a note though it also work with GameMode but requires the -A flag to disable GLUT_MULTISAMPLE (which you check for in GLUTWindow.cpp when NOT running GameMode).

Quite good news this, although it sux that they are deprecating 3dvision. Any good alternatives on the horizon?

Posted on: 1/12 11:36
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Re: 3DVision rendering mode
#6
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I do not know of much sadly.

I think nvidia is still selling their quadro cards.

Otherwise various HMDs might be a solution.

And finally, various extend-screen-on-two-monitors solutions using VERTICAL_SPLIT_KEEP_RATIO stereo modes with passive stereo glasses would work.

Posted on: 1/16 13:56
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