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SlimeVR Open Source Full Body Tracking Launches Funding Campaign

kojack
Volunteer Moderator
Volunteer Moderator

https://www.crowdsupply.com/slimevr/slimevr-full-body-tracker

 

SlimeVR is an inertial mocap solution that has just opened on CrowdSupply. The tech is similar to mocap systems like Perception Neuron and PrioVR, but with some very interesting differences.

 

 

slimevr-angle-01_jpg_project-body.jpg

 

Features:

  • Open Source software (firmware, server and steamvr drivers are all on github)
  • Wireless trackers (needs 2.4GHz wifi)
  • 15 hour battery life and usb recharging
  • Very cheap
  • Area limited only by wifi coverage
  • No external sensors
  • No occlusion

There are 2 kinds of tracker: standard tracker (battery powered, wifi, IMU) and extension (just IMU). The extensions are smaller trackers that connect with a short cable to the stardard trackers, to provide enhanced accuracy (so you get 2 IMUs on one body part)

slimevr-tracker-with-extension-cs_jpg_project-body.jpg

 

Pricing (different tiers on CrowdSupply):

  • 5 trackers (waist, knees, feet) = $165
  • 5 trackers and 1 extension (waist, knees, feet, chest) = $190
  • 5 trackers and 3 extensions = $235
  • 7 trackers and 3 extensions = $295
  • 10 trackers and 6 extensions = $455
  • 7 trackers and 3 extensions as a DIY kit (only boards, no cases, batteries, straps, etc) = $235

Free US shipping, $15 international.

The campaign is already up to $167,805 of $180,000 goal on the first day. Estimated shipping is March 2022.

 

I have no connection to them, only found out they exist about 2 hours ago, but apparently one of my co-workers helped them on some code or something which is how I heard about it. It does look pretty cool, and so much cheaper than buying a Perception Neuron or Vive trackers if you just want VR Chat.

 

Reviews of the beta units:

 

The main concern is these are purely inertial tracking and don't use magnetometers. So position tracking is based on the skeleton hierarchy and your headset position. But most importantly, they can have yaw drift (like the DK1 or the Go and it's controller). But it seems easy to reset on the fly (could probably set up an autooculustouch script to do it on a button combo). I've used a $1500 Perception Neuron mocap suit and it has the same issue (with far more annoying calibration poses each time). So not as precise as Vive trackers, but far better than a Kinect or other cheap solution.

 

But I've been burned on mocap crowd funding before (waiting 7 years now for the PrioVR suit I paid for!). As I said, I have no connection to them and only found them today. However I like the open source side, they give instructions for how to make your own trackers using NodeMCUs (I have a few beside me now) and IMUs (I have a heap) and the low tiers are pretty cheap for a crowd funding gamble.

 

One final interesting thing: you technically don't even need to buy it. They have software for mobile phones to act as the trackers. If you have a heap of phones lying around you can tape them to your body and download the free server software and test it out now. 🙂

 

Author: Oculus Monitor,  Auto Oculus Touch,  Forum Dark Mode, Phantom Touch Remover,  X-Plane Fixer
Hardware: Threadripper 1950x, MSI Gaming Trio 2080TI, Asrock X399 Taich
Headsets: Wrap 1200VR, DK1, DK2, CV1, Rift-S, GearVR, Go, Quest, Quest 2, Reverb G2
11 REPLIES 11

So better to use both camera and IMU same time (if it would be possible)  :))

 

Camera based tracking is not reliable, but it's free (except for software) and you could use it already without any waiting. So both pros and cons...

kojack
Volunteer Moderator
Volunteer Moderator

Two days left on the campaign. There's already over 2000 backers.

 

Author: Oculus Monitor,  Auto Oculus Touch,  Forum Dark Mode, Phantom Touch Remover,  X-Plane Fixer
Hardware: Threadripper 1950x, MSI Gaming Trio 2080TI, Asrock X399 Taich
Headsets: Wrap 1200VR, DK1, DK2, CV1, Rift-S, GearVR, Go, Quest, Quest 2, Reverb G2