# Overview

# HandTracking

  • Hand Tracking Specifications (opens new window)
    • Describes two types of hand tracking specifications in VRChat.
      • Index-Emulated HandTracking:
      • ContactGlove-OSC HandTracking
        • Can move the fingers of a Humanoid avatar using VRChat's OSC API.
        • Unlike Index-Emulated, can reproduce finger bending at each joint.
        • Can reflect unique Avatar Gesture (hand sign) judgments from DivingStation onto the avatar.
        • ContactGloveOSC needs to be integrated into the avatar.
        • Uses 177 (107) bit of VRChat's ExpressionParameter synchronization parameters.
ContactGloveOSC Synchronization Parameters Detailed Table
  • Parameter Details
Type Div
(Step)
Min
(Curl)
Max
(Stretch)
Smoothness
(Local)
Smoothness
(Global)
SyncRate
(Global)[3]
float[1] 0.01 0.00 1.00 0.00 0.70 ~10FPS
bool[2] 1 0 1 0.40 0.70 ~10FPS

[1]: Excludes CGGestureLeftWeight / CGGestureRightWeight.
[2]: Excludes [ContactGloveOSC]. Smoothness is applied to the value after float conversion.
[3]: Global only. According to VRChat's specifications.

  • Use bit Details
Full ver
(177bit)
Lite ver
(107bit)
Parameter Name type use bit Parameter Name type use bit
[ContactGloveOSC] bool 1 [same] bool 1
CGGestureLeft int 8 [same] int 8
CGGestureRight int 8 [same] int 8
CGGestureLeftWeight float 8 [same] float 8
CGGestureRightWeight float 8 [same] float 8
LHThumb2 float 8 LHThumb2B bool 1
LHIndex1 float 8 [same] float 8
LHIndex2 float 8 [same] float 8
LHMiddle1 float 8 [same] float 8
LHMiddle2 float 8 [same] float 8
LHRing1 float 8 LHRing1B bool 1
LHRing2 float 8 LHRing2B bool 1
LHLittle1 float 8 LHLittle1B bool 1
LHLittle2 float 8 LHLittle2B bool 1
RHThumb2 float 8 RHThumb2B bool 1
RHIndex1 float 8 [same] float 8
RHIndex2 float 8 [same] float 8
RHMiddle1 float 8 [same] float 8
RHMiddle2 float 8 [same] float 8
RHRing1 float 8 RHRing1B bool 1
RHRing2 float 8 RHRing2B bool 1
RHLittle1 float 8 RHLittle1B bool 1
RHLittle2 float 8 RHLittle2B bool 1
  • Role Details
Left Right Finger Joint
[ContactGloveOSC] [same] ContactGloveOSC
Enabled/Disabled
-
CGGestureLeft CGGestureRight Expression -
CGGestureLeftWeight CGGestureRightWeight Expression Weighting -
LHThumb2 RHThumb2 Thumb All Joints
LHIndex1 RHIndex1 Index Finger 3rd Joint
LHIndex2 RHIndex2 Index Finger 1st & 2nd Joints
LHMiddle1 RHMiddle1 Middle Finger 3rd Joint
LHMiddle2 RHMiddle2 Middle Finger 1st & 2nd Joints
LHRing1 RHRing1 Ring Finger 3rd Joint
LHRing2 RHRing2 Ring Finger 1st & 2nd Joints
LHLittle1 RHLittle1 Little Finger 3rd Joint
LHLittle2 RHLittle2 Little Finger 1st & 2nd Joints

# BodyTracking

# AvatarHaptics