Export motion to SteamVR

You can use captured motion as virtual trackers in SteamVR by using "Virtual Motion Tracker"(VMT) created by gpsnmeajp.

Warning

Please note that VMT is a separated program from MocapForAll.
DO NOT contact the author of VMT for any issues you encountered when using MocapForAll and VMT together.

Install VMT

• Download from here.
• Follow the setup procedure of VMT.

Which version of VMT should I use?

Use the special version of VMT modifed for MocapForAll to align automatically the coordinates of SteamVR and MocapForAll.
If you align them manually, you do not need to use that version. Use vmt_011 or above. vmt_013c is recommended.

If trackers don't work for your app

Some application requires settings of controller binding.

If you have problems with VMT

First, see trouble shooting page.

Settings to send data

• Set Settings > Data export > Destination IP address for VMT and VMC as follows:
  • If the destination is the same PC: 127.0.0.1
  • If the destination is another PC: IP address of the destination PC
    • You can check it by typing ipconfig /all in the command prompt
    • By running MocapForAll and SteamVR on different PCs, you can offload the mocap calculation and play VR games comfortably.
• Turn on Settings > Data export > VMT protocol > Send tracking points
• Set the port of Settings> Data export> VMT protocol> Send tracking points to 39570.
• Turn on the required parts under Settings > Data export > VMT protocol > Send tracking points > Tracking points to be sent.
  • For example, if you want to use it in VRChat, turn on Pelvis and Feet
  • You can adjust the offset of the virtual tracker position by clicking the > on the left side of each.

Advanced setting: As relative position to HMD

For the following settings, please decide on/off by your preference. We recommend that you try turning on first, and then try turning off if you are really serious about the motion.

• Settings > Data export > VMT protocol > Send tracking points > As relative position to HMD

  • When turned off, the actual tracking positions will be used as the positions of the virtual trackers.
    • The delay of the movements of the virtual trackers with respect to the head-mounted display will be visible as it is.
      (For example, when you start walking, it looks like only the head moves first and the rest moves later.)
    • You need to adjust the scale and the positions properly in Align coordinates of SteamVR and MocapForAll section described below.
      (If the scale is not set properly, the horizontal position of the virtual trackers relative to the HMD shifts as you move in the room.)
  • When turned on, the relative positions of your head and the rest parts will be transformed to the relative positions of HMD and the virtual trackers.
    • The delay of the movements of the virtual trackers with respect to the HMD will be less noticeable.
      (For example, when you start walking, it looks like the rest part slides along with the head.)
    • You do not need to input precise number to the scale, and do not need to input the positions in Align coordinates of SteamVR and MocapForAll section described below.

Align coordinates of SteamVR and MocapForAll

The coordinate of the HMD tracked by SteamVR and the coordinate of the body positions tracked by MocapForAll do not match as they are. You need to align them manually or automatically.

Align automaticallyAlign manually

Prerequisite

As described in Install VMT section, you need to install the modified version of Virtual Motion Tracker for MocapForAll.

• Close application which uses port 39571 including VMT Manager.
• Turn on Settings > Data export > VMT protocol > Send tracking points
• Put on the head-mounted display and keep SteamVR running.
• Stand in a position where HMD is tracked by SteamVR and your body is tracked by MocapForAll.
• In MocapForAll, click Align coord. To VR at the top of the window.
• Walk around. After a while, the value of Settings > Coordinates will be updated automatically, and the coordinates of SteamVR and MocapForAll will be aligned.

• Preparation

  • Click Start capture at the top of the MocapForAll window to start motion capture
  • Put on your head-mounted display, quit apps running on SteamVR, including SteamVR Home, and make your virtual tracker visible on the SteamVR default screen.

• Adjust the scale

  • In MocapForAll,
    • Turn on Head under Settings > Data export > VMT protocol > Send tracking points > Tracking points to be sent
    • Tunr off Settings > Data export > VMT protocol > Send tracking points > As relative position to HMD
  • Set the values of Settings > Coordinates > Scales > Upper body and Lower body so that the height of your eye level matches the height of the Head virtual tracker. Upper body and Lower body scales should basically have the same value.

• Adjust the orientation

  • In MocapForAll,
    • Turn on Feet under Settings > Data export > VMT protocol > Send tracking points > Tracking points to be sent
    • Tunr on Settings > Data export > VMT protocol > Send tracking points > As relative position to HMD
  • Move your foot back and forth and set the value of Settings > Coordinates > Orientation offset so that the direction of the movement of Foot virtual tracker matches the direction of the actual movement of your foot.

• Adjust the position

  • In MocapForAll,
    • Turn on Feet under Settings > Data export > VMT protocol > Send tracking points > Tracking points to be sent
    • Tunr off Settings > Data export > VMT protocol > Send tracking points > As relative position to HMD

• Set the value of Settings > Coordinates > Position offset so that the position of your feet matches the position of the virtual tracker of Feet.