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Full Body Tracking Calibration Routine for Beginners
Jul
A beginner full body tracking calibration routine should keep the reference simple: put the trackers on at their saved body points, choose the avatar you will use, stand in a clear spot, enter calibration from a natural posture, confirm the visible tracker markers, and then test a small ordinary movement. Redo calibration when one of those references changed or the result is visibly wrong. Do not repeat it at random.
This is an every-session routine for a setup that already works. If you still need to install software, connect trackers, assign body roles, or set mounting orientation for the first time, finish the full setup and saved configuration workflow before using this page.
Use one routine for every session
The useful part of a routine is that it makes changes visible. When yesterday’s result looked right and today’s does not, you can compare the avatar, tracker positions, starting spot, and posture instead of changing everything at once.
| Routine point | What to confirm | What to avoid |
|---|---|---|
| Saved setup | Each tracker still has the intended role and mounting direction | Rebuilding the whole configuration before checking what changed |
| Session reference | Trackers are worn at the expected points and the floor space is clear | Moving straps or furniture during calibration |
| Avatar | The avatar on screen is the avatar you intend to use | Calibrating one avatar and judging the result on another |
| Calibration posture | You are balanced, looking forward, and following the on-screen alignment | Leaning, looking down, or holding a pose you cannot repeat |
| Movement check | The avatar follows a small step and weight shift without an obvious mismatch | Starting a long session before checking the result |
Finish the saved setup before this routine
SlimeVR separates several jobs that beginners often call “calibration.” Powered-on trackers first perform their sensor calibration while resting on a flat surface. Initial setup also saves body roles and mounting orientation. Later session calibrations, which SlimeVR also calls resets, use those saved facts to line the worn trackers up with the current session.
This article begins after the trackers have completed their required startup process and the saved roles are known. Before opening calibration, use the roles-first wear check. If Hip, Waist, or Foot labels are still confusing, compare the devices with the body-location map. A clean calibration pose cannot correct a tracker assigned to the wrong body part.
Prepare one stable reference
Use a spot where you can stand normally without reaching around a chair, cable, desk edge, or wall. You only need enough room to hold the calibration posture and make the small movement you plan to test afterward. If space changes often, use the small-room route guide to choose a repeatable standing point.
Put the trackers on before you begin. Confirm that the same physical tracker is still on the same role, that the device direction matches its saved mounting orientation, and that nothing shifts when you settle into a neutral stance. Do not tighten, rotate, or swap a device while the calibration action is underway. If placement must change, make the change first and then begin again from the stable reference.
Confirm the avatar before calibration mode
Select the avatar you intend to use before opening VRChat’s `Calibrate FBT` action. VRChat attaches the avatar to the headset during Calibration Mode, and avatar proportions affect how the body and tracker markers line up. The routine is easier to read when the avatar stays fixed from alignment through the first movement check.
If you switch to a very different avatar later, treat that as a changed reference and calibrate for the new avatar. Use the new-avatar FBT test when you need a deeper review of proportions, sitting, or avatar-specific movement. This page only asks you to confirm which avatar is active before you align it.
Use a posture you can repeat
VRChat’s current guide asks you to enter Calibration Mode from the Quick Menu, check your height and playspace state, align the visible tracker points, and look directly forward before confirming with both Interact controls. Follow the on-screen instructions for the version you are using.
- Stand in the clear spot you prepared and face the direction you will use as forward.
- Let your feet rest in the spacing shown by VRChat rather than forcing a dramatic stance.
- Check the hip marker and any other visible tracked points against the tracker positions on your body.
- Bring your arms into the shown alignment when your tracking layout or avatar requires it.
- Lift your head, look straight ahead, and confirm only after the body feels balanced.
The target is repeatability, not a perfect-looking pose. A deep lean, turned head, crouch, or last-second strap adjustment changes the reference just as the software records it.
Read the markers before confirming
In VRChat Calibration Mode, the small spheres show where the detected tracker points are. Read them as a last chance to catch a simple mismatch. A foot marker near the wrong side, a hip marker far from the worn hip tracker, or an unexpected missing point should be investigated before confirmation.
Do not solve every strange marker by changing avatar settings. First compare the marker with the physical tracker, its role, and its mounting direction. If the marker is reasonable and your posture matches the on-screen guide, confirm the calibration. If it is not, leave the calibration step, correct the one known mismatch, and return with the same avatar and starting spot.
Validate the result with ordinary movement
Calibration ends when the controls accept the pose, but your routine should end after a short acceptance check. Stand neutrally and look at the avatar. Shift your weight, turn gently, and take a small step. Sit and stand only when the session will include sitting. These actions are a practical check, not an extra official calibration command.
Look for a clear relationship between the physical action and the avatar. The feet should not begin crossed when yours are apart. The hip should not start with an obvious constant twist. Returning to the neutral stance should bring the avatar back to a believable neutral result. Stop there if the check passes. A beginner does not need to perform every possible movement before joining a normal session.
Decide whether to continue or redo
| What you observe | Next action |
|---|---|
| The neutral stance and small movement look believable | Continue into the session without changing the reference |
| You changed avatar, tracker position, mounting direction, playspace state, height, or starting posture | Return to the routine and calibrate from the corrected reference |
| One marker was wrong before confirmation | Correct that role or physical placement, then restart the calibration step |
| The result remains wrong after the reference is confirmed | Move to the bad-calibration recovery guide instead of repeating the same attempt |
Recalibration is useful when it records a corrected reference. Repeating the same pose with the same unresolved mismatch gives you little new information. Name the changed reference before you start again.
Match the routine to the tracker plan
If you are comparing hardware for a routine like this, review the FBTKit LSM6DSV SlimeVR-Compatible Full Body Tracking Kit after deciding which body roles you plan to wear. The routine still depends on correct saved roles, stable placement, the chosen avatar, and the calibration flow used by your software.
FAQ
What is the difference between first-time setup and a beginner session calibration routine?
First-time setup installs and connects the system, assigns tracker roles, and saves mounting orientation and other configuration. The session routine starts from those saved facts, aligns the worn trackers with the current avatar, and checks the result before use.
Should I choose my VRChat avatar before calibrating?
Yes. Select the avatar you intend to use before entering Calibration Mode so the tracker markers, avatar proportions, and first movement check all use the same reference.
What posture should a beginner use during VRChat FBT calibration?
Use a balanced stance that follows VRChat’s on-screen alignment, keep the tracker points lined up, lift your head, and look directly forward before confirming. Avoid leaning or making a last-second strap adjustment.
How should I check the result without starting over immediately?
Return to a neutral stance, shift your weight, turn gently, and take a small step. If the avatar follows those ordinary movements and returns to a believable neutral position, continue without changing the setup.
When should I redo full body tracking calibration?
Redo it after changing the avatar, tracker position, mounting direction, height or playspace reference, or starting posture, and when the completed result is visibly wrong. Correct one known reference before repeating the calibration.
Official sources
- SlimeVR Docs: Quick Setup
- SlimeVR Docs: Glossary, including session calibration and reset definitions
- VRChat Docs: Full-Body Tracking
