You can record your VR CAD session and blend virtual and real world into a mixed reality video in real-time like the one at the top of this page. This kind of videos are very informative about the process you adopted in your design pipeline and can be used for marketing purpose or just to share project details among your team. 


Required tools

  • a video capture card, for the purpose of this tutorial, we used a Razer Ripsaw
  • a digital camera with HDMI output, for the purpose of this tutorial, we used a Sony α6000
  • an HTC Vive tracker
  • a 1/4" mount adapter for tripod screw to flash, like this one or an alternative mounting system
  • an HTC Lighthouse tracking system (you already have it if you use the HTC Vive)
  • a full Mindesk workstation, see required software and hardware in the Getting Started section of the Knowledge Base
  • a capture software, we recommend OBS Studio (freeware)


Hardware setup

  1. connect the HDMI output of your camera to the video capture card HDMI input
  2. connect the capture card to the same workstation that runs Mindesk
  3. secure the HTC Vive Tracker to your camera with a 1/4" mount adapter or an alternative mounting system



  4. pair the HTC Vive Tracker to the same workstation that runs Mindesk


Software setup


You need to compose your virtual camera (from Mindesk) and your real camera streams into one video. To do so, you need to set OBS as follow:

  1. Open your project in Rhino and connect Mindesk VR
  2. From the Mindesk console enable "XR View" and select Vive Tracker as source
  3. Launch OBS, create a new scene and name it (i.e. "Mindesk XR"), now you can populate this scene with two streams: the background streams coming from your camera and the foreground stream coming from Mindesk virtual camera



  4. add a "Video Capture Device" to the scene background, select your video capture card device:



  5. still in OBS add a "Game Capture" source to the scene foreground:



  6. remember to Allow Transparency, then click OK, you should be ready to record. If everything is done correctly, you should see your CAD stream on top of your camera stream
  7. check your compositing picture, if virtual and real cameras don't match properly, go through the calibration process



note: some workstations have more than one GPU, this might cause the Game Capture window not to work properly. If this happens, force OBS Studio to run on the same GPU where Mindesk runs. You can set this from the control panel of your GPU (i.e. NVIDIA Control Panel):




Calibration process

  1. mount the Vive Tracker horizontally on your camera so that the USB port points outward from the backside of your camera (in other words, the opposite direction of the objective)
  2. load Mindesk and enable the XR view
  3. you can use the control on the Mindesk Viewer to adjust the position (X, Y, Z), orientation (Yaw, Pitch, Roll), and FOV of the virtual camera to that it matches the real camera


Record process

  1. Open your project in Rhino and connect Mindesk VR
  2. Close the default Mindesk Viewport
  3. From the Mindesk console enable "XR View" and select HTC Vive Tracker as source
  4. Launch OBS and add a "Game Capture" source to the scene
  5. Click "Start Recording"
  6. Once done, click "Stop Recording", you will find your records in File -> Show Recordings


note: in order to prevent sudden crashes to waste your record files, we highly recommend to setup OBS Studio record format to .mkv .To do so, go to Settings -> Output -> Recording Format -> mkv