Having issues with a tilted hip using Full Body Tracking

[Yukimare]

I am having a issue regarding my trackers that is resulting in my avatar's waist being tilted at a 30-45 degree angel after freshly calibrating, forcing me to use FBT Advanced settings to correct the tilt but messing up tracking in the process. And I would like to ask if there is a fix for this that I am unaware of.

Here's the details I know of with this issue.

* The locations of the trackers on my body are two on my ankles, 2 on my elbows before the joint, one on my waist, and one on my upper torso.

* Not every avatar suffers from this problem. But both of the avatars I have do. (The ones that evade this issue seem to either be more anthropomorphic rather than humanoid. I have tested this both on my own and on the current avatars found in the Home World. The Fairy avatar also evades this issue for some reason.)

* In the case of my avatars, one is larger than usual with longer limbs in proportion to the torso. But the other has more realistic proportions. Both along with some other avatars of various sizes have the same issue.

* This also affects the avatar's right foot, as the tilt pushes the foot into the ground initially, causing it to clip.

* I can crudely fix it by rotating the tracker to attempt to correct it. But not only is this not precise, but it also causes the avatar to nudge the hip to the left and fails to fix the issue with the right leg. The issue returns after recalibration.

* The issue is better fixed with the advanced settings in VRC, but again, the issue returns after recliabration, and it leaves the avatar slightly crooked after fixing

* This is isolated to a hardware issue, as I had others use the avatars I used as well as used others avatars who had known good rigging. The others had perfectly fine tracking and movement with their FBT, but my issues would transition to their avatars in most cases. (At one point, the issue got magnified and the tail of their avatar twisted and stuck out in front of me.

* Walking animation is also affected; unless my arms are raised above my hips, my avatar droops and leans back, forward, to the side, etc. in an attempt to keep the arms at the location of my controllers. This is universal and also affects the publicly available avatars.

* I have attempted to swap trackers twice, once with the right elbow and once with the upper torso. The tracker that originally was at the hip and relocated elsewhere works fine at the new location, while the previously perfectly fine tracker starts having the issue.

* I have two base stations, one to my right looking down and hanging from the wall, and one to the front left on a drawer that is slightly over knee level, looking level and diagonal toward the center of the room. The one on the drawer has line of sight on the ground, as I otherwise can lie down and still be tracked just fine.

* While calibrating, the white ball indicating my waist tracker seems to be tracked smoothly.

* Tightening the belt and looping it around the belt loops in a pair of pants does nothing to resolve this.

* I have attempted adjusting my IRL height as well as switching from hip to head tracking, to no effect.

If anyone knows anything that can help with this, let me know. I would like to be able to fix this issue so that I do not have to manually fix the issue every single time I boot up VRC, which can add more time to getting ready for it.

[LunarSpaceDani]

do you by chance use a quest with space calibrator with your fbt?
if this is tracker drift, have you taken all steps to minimize tracking loss? (making sure all base stations have line of sight, spacing tracker dongles so they don't interfere with one another, removing reflections etc)
are you able to move the base station near the floor up higher? base stations should be mounted high and pointed down toward your playspace and also have line of sight of one another. (this might not apply to 2.0 base stations but for my 1.0's they must have los)

other things that you could try that could help tracking
setting the floor and height within vrchat manually
reducing the calibration range for more accurate calibrations
manually repairing each tracker to each dongle (plug in one tracker dongle at a time and pair each tracker to that dongle so you know what dongle goes to what tracker, this can fix tracker drift as some dongles hate some trackers)

that is all I can really think of that could fix the issue

[Yukimare]

引用自 LunarSpaceDani：

do you by chance use a quest with space calibrator with your fbt?
if this is tracker drift, have you taken all steps to minimize tracking loss? (making sure all base stations have line of sight, spacing tracker dongles so they don't interfere with one another, removing reflections etc)
are you able to move the base station near the floor up higher? base stations should be mounted high and pointed down toward your playspace and also have line of sight of one another. (this might not apply to 2.0 base stations but for my 1.0's they must have los)

other things that you could try that could help tracking
setting the floor and height within vrchat manually
reducing the calibration range for more accurate calibrations
manually repairing each tracker to each dongle (plug in one tracker dongle at a time and pair each tracker to that dongle so you know what dongle goes to what tracker, this can fix tracker drift as some dongles hate some trackers)

that is all I can really think of that could fix the issue

* Quest is uninvolved, I use the Valve Index.

* Already taken all of those steps. Including recently moving one of the base stations higher up, despite it being a 2.0 base station.

* Floor and height already manually done.

I'll try the tracker repair idea once I'm able to do so. Though I am in contact with Vive customer service trying to debug the issue. Thankfully because I got these trackers so recently, I have a extended period of time to debug it before I must decide if I must return them.

[LunarSpaceDani]

引用自 Yukimare：

引用自 LunarSpaceDani：

do you by chance use a quest with space calibrator with your fbt?
if this is tracker drift, have you taken all steps to minimize tracking loss? (making sure all base stations have line of sight, spacing tracker dongles so they don't interfere with one another, removing reflections etc)
are you able to move the base station near the floor up higher? base stations should be mounted high and pointed down toward your playspace and also have line of sight of one another. (this might not apply to 2.0 base stations but for my 1.0's they must have los)

other things that you could try that could help tracking
setting the floor and height within vrchat manually
reducing the calibration range for more accurate calibrations
manually repairing each tracker to each dongle (plug in one tracker dongle at a time and pair each tracker to that dongle so you know what dongle goes to what tracker, this can fix tracker drift as some dongles hate some trackers)

that is all I can really think of that could fix the issue

* Quest is uninvolved, I use the Valve Index.

* Already taken all of those steps. Including recently moving one of the base stations higher up, despite it being a 2.0 base station.

* Floor and height already manually done.

I'll try the tracker repair idea once I'm able to do so. Though I am in contact with Vive customer service trying to debug the issue. Thankfully because I got these trackers so recently, I have a extended period of time to debug it before I must decide if I must return them.

hope that it goes well and that it is just an issue with a bad tracker or dongle and not a bad base station (though this would be unlikely since you have good tracking with everything else but the trackers)