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Found 10 results

  1. Hello, I am trying to create a game in Unity that involves the use of Vive trackers. However, we cannot let others run the Unity project and can only give them a build/executable of the game. There are 3 Vive trackers needed (1 for hip and 2 for feet). Is there a way to have a popup at the start of game that forces users to turn on Vive trackers and assign them to certain game objects in the scene? Thank you! @chengnay
  2. Hi, I've got a Vive Tracker 2018 and a Sony Alpha 7. The shoe on top of the camera is capable to trigger an attached flash light. My Question: Is it possible to use this electrical trigger signal with the Pogo Pins? This way the camera trigger would not only create a picture but also send a trigger signal with the Tracker simultaneously! Any ideas to implement this technique is appreciated! Thx.
  3. Hi, whats the best way to calibrate a tracker 2018? I want the z-axis value to be zero when the tracker is on the floor. Calibrating with the HMD and SteamVR, where i put both controllers on the floor, is not accurate. Sometimes up to 5-10 cm... (btw. do both Basestations have to be on same height level?) Calibrating only with the tracker and a Basestation is better, but I have to substract the height of the Basestation... Error is about 2-5 cm... I am confused, do I always have to fix this manually? Thx
  4. Can the Vive Tracker be used independently of the rest of the kit? I would like to use it to track camera movements in a virtual set. I would avoid buying what is not needed ... thank you!
  5. Hello folks, I am running into a problem interfacing with the OpenVR SDK when using two trackers with one controller. Specifically, the IVRCompositor::WaitGetPoses( ) function will sometimes return incorrectly transformed matrices to my C++ application. I was wondering if anyone has experienced a problem like this before, or if there is a known solution. The scenario: I place two VIVE trackers about 1 foot apart from one another, facing the same direction. I would expected that the matrices of each tracker (stored in TrackedDevicePose_t -> mDeviceToAbsoluteTracking) will be very similar. If I power up in this order - Tracker 1 On, Tracker 2 On, Controller On - the matrices of both trackers are indeed almost identical. However, if I power on in a different order - Controller On, Tracker 1 On, Tracker 2 On - The matrices of one of the trackers will be rotated exactly 90 degrees from what I would expect. The other tracker still retains the correct values/orientation as before. So now, even though both physical trackers are sitting in similar positions and orientations in the real world, their matrices returned by the VIVE SDK's WaitGetPoses( ) are different. In the same session, I can power on/off the controllers in different orders to change whether I get the correct or incorrect matrix values from the tracker. I am certain this is not a problem with my tracked device indices, nor a problem with overflowing array bounds, because the XYZ Position of the "Bad" Tracker is always correct - it is only the rotation of the tracker about that position in space that changes. So at least one value in every row in the matrix is what I expect. The correct Tracker[index == 3] 4x4 matrix (left) vs. the incorrect Tracker[index == 3] matrix (right) [ -0.99, 0.00, -0.17, -0.20 ] [ 0.99, -0.05, -0.12, -0.20 ] [ 0.00, 1.00, 0.00, 0.72 ] [ -0.01, 0.00, -0.99, 0.72 ] [ 0.01, 0.00, -0.99, 1.38 ] [ 0.05, 0.99, 0.00, 1.38 ] [ 0.00, 0.00, 0.00, 0.00 ] [ 0.00, 0.00, 0.00, 0.00 ] To specify the configuration I am using, my OpenVR SDK is version 1.0.10, my VIVE trackers are the newer model with the blue triangle, and my base stations are the older model. If anyone knows of a fix, workaround, or simply something to try, I would be very grateful for the help! Right now I am thoroughly stumped! Thanks! @chengnay
  6. Hello, We're having issues with our older Vive Trackers where they pair with SteamVR but aren't tracking despite being in clear view of the lighthouses, and also near Vive Controllers that are being tracked. Things we've tried to fix the issue: Restarting the machine Restarting SteamVR Rebooting every connected device Unplugging/Replugging the Tracker dongle Changing SteamVR to Beta Plugging in the tracker via USB did allow the Vive Tracker to be tracked. We are using a Vive Pro Headset. Any thing we can do to fix this? @VibrantNebula
  7. Hello. I have seven trackers. I tagged each tracker with a numbered sticker. I realized that is not possible to identify what icon belongs to each tracker. So is it impossible to check battery level of the trackers in a proper way, because it will be not a good solution to turn off all the trackers and reconnect one by one... Do I miss something ? THANKS
  8. We use VIVE Pro and Trackers. And try to track bat swing trajectory , but when swinging the tracker at high speed, the position / posture data is disturbed. In case of low speed, data is clean. When we try to at another enviroment ,even with high-speed swings, the data was clean. I don’t know what’s different. Are there anything to check?
  9. I'm trying to track a webcam streaming live video using a vive tracker puck in unrealengine. I got most of it to work but because there is some delay in the video feed I need to delay the tracker data by an equal amount (several frames) so the tracker data will match up with the video. Is there a way to do this? @Jad @Dario @foo
  10. Hello, I'm having trouble with tracking when I have more than 2 VIVE TRACKERS connected. Tracking becomes very poor, I experience a lot of jitters. It''s actually unusable. I think it has something to do with bluetooth connection quality and I seek any helpful tips how to improve it. Here is what I have already tried: 1. I have no reflective surfaces in the room. I've even had to replace my wardrobes as those had reflective doors :-). My windows are completely covered. 2. I have tried a couple of setups with base stations. I used 2x VIVE Base Stations 2.0, 4x VIVE Base Stations 2.0, 2x VALVE Index Base Stations 2.0 and finally 4x VALVE Index Base Stations 2.0. Multiple positions were tested. The results didn't vary much. After connecting 4 - 5 VIVE Trackers, I get very poor performance on some of them. And of course - it's random - most of the times one or two trackers has tracking issues, sometimes the controllers start to jitter. 3. I've noticed that when I connect 2 VIVE Trackers wireless with dongles and 3 VIVE Trackers with USB cables, tracking is good or perfect even. To connect the tracker with an USB cable, you need a little trick - first you have to plug in a dongle to an USB port, pair the tracker to that dongle and then remove the dongle and connect the tracker to the same port with USB cable. 4. I've tried turning off my WIFI router as it sends 2,4 GHz signal and can interfere with Bluetooth connections (at least in theory). 5. The trackers aren't placed near any metal objects that could interfere with their antennas. I use the TrackStraps and TrackBelt from the VIVE US store. Do you have any ideas or tips, what else I could test to have good quality, full wireless tracking with two controllers, and 5 VIVE Trackers?
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