This panel is divided into four sub-panels. The PC VR panel displays based on selection:

• Status

  Used to connect the receiver and display the connection status of the receiver

• General Calibration

  Used for motion calibration and key parameter configuration during motion calibration

• PC

  Used for common parameter configuration and control in general PC motion capture

• VR

  Used for common parameter configuration and control under SteamVR

Status Panel

1. Status Display

   Indicates the connection status. The icon is green when connected.

2. Connect Button

   The font is gray when it is not connectable, indicating that the receiver is not plugged in. The font is white when it is connectable. If you encounter connection issues, please refer here

3. Shutdown Button

   Click to shut down all. If you want to shut down a specific sensor, you can open the details of that sensor to shut it down (refer here), or directly place it in the charging box to shut it down (refer here).

4. Motion Capture Mode Switch, switch according to your usage scenario

   Only users who use SteamVR need to switch to the VR scene. If it is a general scene, such as recording animation or non-VR scene live streaming, switch to PC mode. Note that if you switch to VR mode and VR is not connected, it will automatically switch to PC mode.

   VR cannot connect please refer here

5. Log Switch

   In 3D preview mode, the switch is available. By default, the log is not displayed. The icon on the right is to clear the log. If you turn off the 3D preview, the log will be displayed by default and cannot be turned off.

6. Help Document Button

General Calibration Panel

1. Calibration Button

   General calibration requires three poses: A-Pose, S-Pose, and T-Pose. For details on the key points and calibration, please refer here

   If calibration fails, it may be due to:

   • Incorrect wearing mode, please refer here
   • Accidental replacement of points, please refer here
   • USB driver issues, please refer here

2. Advanced Calibration Button

   Compared to the calibration button, this adds B-Pose, mainly used for yaw angle calibration of the head, chest, and waist nodes. Other functions are consistent with Calibration.

3. Six-Axis Mode Switch

   If the user's magnetic environment is poor, the six-axis mode can be turned on. Before turning on the six-axis mode, it is recommended to calibrate the gyroscope. The six-axis mode means that the magnetometer sensor data is not used, so it will not be affected by any magnetic environment. However, the problem it brings is gyroscope drift, which manifests as yaw angle deviation over long periods of use.

   Yaw Angle Deviation (Yaw Angle Tilt) Specific Manifestations

   • Tilting while standing, such as the chest rotating on its own
   • Tilting while leaning forward, such as bending forward but actually bending to the side
   • Tilting while lying down, such as legs being in line with the body but actually having a horizontal angle, like both legs tilting to the right.

   For magnetic environment identification, please refer here

4. Symmetry Calibration Switch

   The switch here is only effective at the moment of calibration, mainly used to eliminate the measurement error of the magnetic heading angle (the magnetic heading measurement is based on the calibration action, and there are errors in the calibration action itself, and the magnetic field itself is jittery, so there will also be measurement errors). It is generally recommended to turn it on [6-axis mode will automatically turn off]. Specifically, during calibration, at the same horizontal level, the heading angles of the left and right trackers will be averaged. For example, if the heading angle measured by the left upper leg in the current standing direction is 10 degrees, and the right upper leg measures 20 degrees, then a 15-degree average will be used.

   Only when the left and right legs are at the same horizontal level and there is a significant difference in the magnetic heading direction, it is necessary to turn it off. Generally, if there is a large difference in the magnetic field at the same height, it indicates a poor magnetic environment, and it is recommended to use 6-axis.

   For magnetic environment identification, please see here

5. Filter Switch

   Used to smooth out motion jitter. It is generally recommended to turn it on. If you find that the jitter in a certain part is still significant, check the following:

   • First check if the wearing causes the jitter, such as the tracker being suspended
   • Check the anti-magnetic level, generally set to 12. If there is jitter, adjust it back to 12 and test again. For adjustment, please see here

6. Anti-Magnetic Mode Switch

   • For situations where the magnetic field environment is poor at certain points, you can turn on the anti-magnetic mode.
   • If you want the sensor to follow faster under slight body movements, you can turn on the anti-magnetic mode.

     For example, in the case of swaying left and right, the anti-magnetic mode follows faster compared to the non-anti-magnetic mode, which follows slower under slight movements, but the impact is not significant under large movements.

   [info] When to turn off anti-magnetic mode

   • For users who dance extensively, it is recommended to turn off the anti-magnetic mode, and it is also not recommended to use the 6-axis mode. Dancers are advised to perform in environments with good magnetic fields.

       Of course, in the future, we might also release a professional version of the sensor with better gyroscope performance, possibly supporting extensive dance mode without using a magnetometer, stay tuned.

   • If the overall magnetic field is very chaotic, such as nearby transformers, or large speakers in the room, and the magnetic field radiation range is wide, or if used on an iron spring bed, then it is recommended to turn on the 6-axis mode.

   The anti-magnetic switch is remembered by the tracker, meaning each time it is turned on or off, the result is stored in the tracker, not in the software configuration.

7. reset button

   Will reset the current panel's parameters to default settings! Subsequent panel functions are the same and will not be repeated!

8. help document button

PC Panel

The settings here do not affect VR users, VR users can skip this section.

1. Reset Origin Button

   The origin of inertial motion capture can easily drift, you can directly reset the origin to point zero.

2. Auto Reset Function

   The default is 0 minutes, meaning it will not auto-reset. If the value n is greater than 0, it will automatically reset the origin to zero after n minutes, suitable for virtual anchors and users dancing in the original position.

3. Frame Buffer

   By default, PC use will have a two-frame buffer, about 34ms, which can increase stability, such as possibly reducing drift. For upper body users, it can be turned off for faster follow-up.

4. Mirror Mode

   Left and right mirror, useful for anchor users, similar to looking in a mirror, left and right are reversed.

5. VMC Output

   VMC protocol users will need this. If third-party software is accessed through the VMC protocol, VMC output needs to be enabled.

   • After turning it off, you can adjust the port number and then turn it back on.
   • VMC scaling is mainly used to adapt to character skeletons. If the skeleton driven in rebocap and the target skeleton are inconsistent, it may cause sliding steps or feet hanging in the air, or feet under the floor, etc. Adjustments here can alleviate these issues. However, if you are using a VRM model, it is strongly recommended to upload the VRM model, set this to 1.0, or if you are using another model and want better performance, it is also recommended to upload the skeleton, which can be exported through the Blender plugin, for specific export please see Blender Plugin Usage

6. Recording Function

   The basic steps are: start recording -> end recording -> export motion. Here you can export three types, fbx, bvh, dae formats.

   Among them, fbx6 is the traditional fbx format, and many of the latest software do not support the traditional fbx format.

   Also, the exported fbx currently uses the default firmware, and adjustments to the skeleton and imported skeletons here do not take effect, so if you use the recording function, please reset the skeleton page and do not use the uploaded skeleton. This will be addressed in future updates, stay tuned.

VR Panel

1. SteamVR Connection Status Indicator

   If connected successfully, it will be green; otherwise, it is not connected. If unable to connect, please see here

2. Heading Calibration

   During heading calibration, ensure the body maintains no angle to the side, only rotating around the body's lateral axis. For example, stand in an apose, when sitting, the knees point directly forward, and when lying down, the body is in a straight line. Heading calibration will temporarily not affect the arms; arms may be considered later.

   This feature is mainly used for recalibrating when the heading is skewed. For appearances of skewed heading, see here. If after calibration it is still skewed, consider the following three factors:

   • The strap itself is skewed
   • The safety zone has not been turned off, turn off the all-in-one machine safety zone
   • Using tools like vrc toolkit that have modified the heading angle, need to reset to 0

   Here is the quick calibration switch, mainly used to shorten the heading calibration time. If not enabled, a time reservation prompt will be given; once enabled, no time reservation prompt will be provided.

3. Automatic Height

   Enabled by default, the automatic height here is calculated based on the height of the headset. However, the height measurement of the headset is easily affected by the personal environment and also related to the measurement accuracy of the headset. The current calculation method for height is: height = headset * 1.05.

   That is to say, looking down or up during calibration will affect the height measurement. Generally, it is better to ensure that the height measurement error is within ±3cm. If the error is large, consider calibrating the distance from the headset to the ground.

   [danger] Measurement Error Explanation

   The large height measurement error has nothing to do with the rebocap device, nor with the rebocap software itself. Rebocap only reads the height of the headset and then calculates the height by multiplying by a factor of 1.05. If the error is large, it is generally caused by the measurement error of the all-in-one machine height!!!

   The measurement error of the all-in-one machine can generally be resolved by calibrating the ground height. If there is still a significant error, consider the influence of the surrounding environment (the measurement of the all-in-one machine is generally based on the environment seen by the camera), finding a relatively open space in the room may help alleviate the issue.

4. Follow Mode

   In follow mode, the body's points are driven entirely by the position of the headset, and there will be foot sliding. Keeping the body's skeleton consistent with reality can alleviate this.

   Additionally, when the height of the character's feet is about 20cm or more, the internal calculation will automatically switch to follow mode.

5. Automatic Re-centering Function

   Here, the automatic re-centering is triggered when the user is stationary for about 1 second. The re-centering threshold refers to the distance between the current posture and the follow mode (i.e., entirely based on headset positioning) posture of the virtual trackers. If the distance of the trackers exceeds the re-centering threshold, re-centering will be triggered. Therefore, if the threshold is very low, re-centering will occur frequently, and the phenomenon seen is that the trackers will experience small, sudden movements.

   After re-centering, the trackers will immediately return to the position in follow mode. Therefore, if the re-centering result is not satisfactory, consider switching to follow mode to check, as it might be due to the heading angle being off or the strap being skewed.

6. Positioning Diagnosis

   This feature helps to assess the positioning effect of the trackers. Once enabled, a new set of virtual trackers will be created, positioned directly in front of oneself at a distance measured in cm, which can be adjusted via a slider. If you want to see the virtual trackers, it is recommended to switch to the default scene in steamVR! Third-party software like reborn or VRC, unless in a special mode, generally does not display virtual trackers.

7. Virtual Points

   This controls which virtual trackers are displayed, and can be configured by the user. For example, the default arm trackers are enabled, but you can click here to disable the arm points.

8. VRC Mode

   Compared to normal mode, VRC mode mainly merges the upper and lower leg virtual points into the knee. Players can choose whether to enable this based on their actual situation. Enabling VRC mode does not necessarily perform better in VRC. The options here mainly place the virtual trackers at points more compatible with VRC IK calculations, but this does not mean the effects will be better. VRC IK is influenced by many factors, such as whether the virtual skeleton matches the real person, etc.