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How to take in-game 3D Stereo screenshots in JPS format

June 20th, 2009 · 3 Comments · GeForce 3D Vision

While you are playing a game or using a 3D program compatible with GeForce 3D Vision you can take screenshots in JPS format that can be viewed later on in a 3D form instead of the normal “flat” 2D screenshots that can be saved on JPEG format. If you press the Print Screen button or use a program like FRAPS to take in-game screenshots when using GeForce 3D Vision you’ll notice that only normal (single frame) images are being saved. But if you press ALT + F1 instead while in the game you can save a JPS screenshot that actually contains 2 images – one for the left eye and one for the right, thus allowing you to see the image in 3D Stereo mode with a compatible viewer. The 3D screenshots are being saved in a folder called NVStereoscopic3D.IMG in your current user’s My Documents folder. The only drawback when taking 3D Stereo screenshots is that it takes some time, when you press the key combination to save a JPS file you may have to wait for a second until it is ready…


3dstereo-viewer


By default when you install the GeForce 3D Vision drivers you also get the Nvidia 3D Vision Photo Viewer that is needed in order for you to be able to open JPS files and view them in 3D Stereo mode. When you open an image in full screen it is shown in 3D mode, and when you exit the full screen mode it gets in a side by side view of the two frames (the ones for the left and for the right eye). You should have in mind that when viewing the 3D stereo images you cannot change their level of depth like you can in a normal 3D application… when making the screenshots they are being saved in the depth level you were using in the actual game or other 3D application.

Here are some screenshots form the Nvidia’s Medusa 3D Stereo demo
And here is the Nvidia’s Medusa 3D Stereo demo itself that you can download and run


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3 responses so far ↓

  • 1 Rob // May 6, 2010 at 06:33

    Note that the *.jps files saved can be renamed to .jpg to view on non-3D monitors without 3D Picture viewing software.

  • 2 Uchi // May 12, 2013 at 20:28

    Using a registry hack you can make it so PrintScreen (PrtScr) instead of Alt + F1 does the jps screen capture:

    Windows 64-bit:

    [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\NVIDIA Corporation\Global\Stereo3D]
    “SaveStereoImage”=dword:0000002c

    Windows 32-bit:

    [HKEY_LOCAL_MACHINE\SOFTWARE\NVIDIA Corporation\Global\Stereo3D]
    “SaveStereoImage”=dword:0000002c

    There is also an option to set the quality of the jps image – this works the same as jpg quality;

    “SnapShotQuality”=dword:00000032 (50)
    is the default, but I’ve set mine to dword:0000004b (75)

    However, there’s a limit of maximum 99 images per application.

    If you use 75 as a quality instead of 50, and your game is called “MyGame.exe”, you will get

    MyGame01_75.jps
    MyGame02_75.jps
    MyGame03_75.jps

    MyGame98_75.jps
    MyGame99_75.jps

    After this, you will still get the “Image captured” message, but unfortunately, they are NOT saved.

    If you manually move the .jps files to another folder, so the NVStereoscopic3D.IMG folder is empty again, it will start over at

    MyGame01_75.jps
    MyGame02_75.jps
    MyGame03_75.jps

    MyGame98_75.jps
    MyGame99_75.jps

    And if you rename this into e.g.

    MyGame0101_75.jps
    MyGame0102_75.jps
    MyGame0103_75.jps

    MyGame0198_75.jps
    MyGame0199_75.jps

    and move them to that other folder, you can keep capturing for a while.. ;)

    Still, it would be better if one could find an automatic solution for this..

  • 3 Uchi // May 12, 2013 at 23:19

    Sorry – it seems this is old news for you..! :-)

    http://3dvision-blog.com/3053-modifying-all-3d-vision-control-key-combinations-as-you-need/

    http://3dvision-blog.com/2343-how-to-get-better-quality-stereoscopic-3d-screenshots-with-3d-vision/

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