Mappings Reference

ARKit (61 morphs)

52 facial blendshapes + 9 rotation values (head + eyes)

[  "EyeBlinkLeft", "EyeLookDownLeft", "EyeLookInLeft", "EyeLookOutLeft",  
"EyeLookUpLeft", "EyeSquintLeft", "EyeWideLeft", "EyeBlinkRight",  "EyeLookDownRight",
 "EyeLookInRight", "EyeLookOutRight", "EyeLookUpRight",  "EyeSquintRight", "EyeWideRight", 
"JawForward", "JawRight", "JawLeft",  "JawOpen", "MouthClose", "MouthFunnel", "MouthPucker", 
"MouthRight",  "MouthLeft", "MouthSmileLeft", "MouthSmileRight", "MouthFrownLeft",  
"MouthFrownRight", "MouthDimpleLeft", "MouthDimpleRight", "MouthStretchLeft",  
"MouthStretchRight", "MouthRollLower", "MouthRollUpper", "MouthShrugLower",  
"MouthShrugUpper", "MouthPressLeft", "MouthPressRight", "MouthLowerDownLeft",  
"MouthLowerDownRight", "MouthUpperUpLeft", "MouthUpperUpRight", "BrowDownLeft",  
"BrowDownRight", "BrowInnerUp", "BrowOuterUpLeft", "BrowOuterUpRight",  "CheekPuff", 
"CheekSquintLeft", "CheekSquintRight", "NoseSneerLeft",  "NoseSneerRight", "TongueOut", 
"HeadYaw", "HeadPitch", "HeadRoll",  "LeftEyeYaw", "LeftEyePitch", "LeftEyeRoll", 
"RightEyeYaw",  "RightEyePitch", "RightEyeRoll"]

MetaHuman (251 Morphs)

Categorized Overview

// MetaHuman (251 morphs) — Unreal Engine MetaHuman CTRL_expressions_*
[
  // Brows (0–7) — 8 controls
  "CTRL_expressions_browDownL", "CTRL_expressions_browDownR",
  "CTRL_expressions_browRaiseInL", "CTRL_expressions_browRaiseInR",
  // ... 4 more brow controls

  // Ears (8–9) — 2 controls
  "CTRL_expressions_earUpL", "CTRL_expressions_earUpR",

  // Eyes (10–42) — 33 controls
  "CTRL_expressions_eyeBlinkL", "CTRL_expressions_eyeBlinkR",
  "CTRL_expressions_eyeLookUpL", "CTRL_expressions_eyeLookUpR",
  "CTRL_expressions_eyePupilWideL", "CTRL_expressions_eyePupilWideR",
  // ... 27 more eye controls

  // Eyelashes (43–50) — 8 controls
  "CTRL_expressions_eyelashesUpINL",   "CTRL_expressions_eyelashesUpINR",
  "CTRL_expressions_eyelashesDownOUTL","CTRL_expressions_eyelashesDownOUTR",
  // ... 4 more eyelash controls

  // Jaw (51–64) — 14 controls
  "CTRL_expressions_jawOpen", // most important for lipsync
  "CTRL_expressions_jawLeft", "CTRL_expressions_jawRight",
  "CTRL_expressions_jawClenchL", "CTRL_expressions_jawClenchR",
  // ... 9 more jaw controls

  // Mouth (65–192) — 128 controls (detailed lipsync)
  "CTRL_expressions_mouthFunnelDL", "CTRL_expressions_mouthFunnelDR",
  "CTRL_expressions_mouthCornerUpL","CTRL_expressions_mouthCornerUpR",
  "CTRL_expressions_mouthLipsPressL","CTRL_expressions_mouthLipsPressR",
  "CTRL_expressions_mouthUpperLipRaiseL","CTRL_expressions_mouthUpperLipRaiseR",
  // ... 120 more mouth controls

  // Neck & Throat (193–206) — 14 controls
  "CTRL_expressions_neckStretchL", "CTRL_expressions_neckStretchR",
  "CTRL_expressions_neckSwallowPh1","CTRL_expressions_neckSwallowPh2",
  "CTRL_expressions_neckThroatInhale","CTRL_expressions_neckThroatExhale",
  // ... 8 more neck/throat controls

  // Nose (207–218) — 12 controls
  "CTRL_expressions_noseWrinkleL", "CTRL_expressions_noseWrinkleR",
  "CTRL_expressions_noseNostrilDilateL","CTRL_expressions_noseNostrilDilateR",
  // ... 8 more nose controls

  // Teeth (219–230) — 12 controls
  "CTRL_expressions_teethUpD", "CTRL_expressions_teethUpU",
  "CTRL_expressions_teethFwdD","CTRL_expressions_teethFwdU",
  // ... 8 more teeth controls

  // Tongue (231–250) — 20 controls
  "CTRL_expressions_tongueOut", "CTRL_expressions_tongueIn",
  "CTRL_expressions_tongueTipUp","CTRL_expressions_tongueTipDown",
  "CTRL_expressions_tongueLeft","CTRL_expressions_tongueRight",
  // ... 14 more tongue controls
]

MetaHuman 251 Blendshape array in JSON format

[
  "CTRL_expressions_browDownL",
  "CTRL_expressions_browDownR",
  "CTRL_expressions_browLateralL",
  "CTRL_expressions_browLateralR",
  "CTRL_expressions_browRaiseInL",
  "CTRL_expressions_browRaiseInR",
  "CTRL_expressions_browRaiseOuterL",
  "CTRL_expressions_browRaiseOuterR",
  "CTRL_expressions_earUpL",
  "CTRL_expressions_earUpR",
  "CTRL_expressions_eyeBlinkL",
  "CTRL_expressions_eyeBlinkR",
  "CTRL_expressions_eyeCheekRaiseL",
  "CTRL_expressions_eyeCheekRaiseR",
  "CTRL_expressions_eyeFaceScrunchL",
  "CTRL_expressions_eyeFaceScrunchR",
  "CTRL_expressions_eyeLidPressL",
  "CTRL_expressions_eyeLidPressR",
  "CTRL_expressions_eyeLookDownL",
  "CTRL_expressions_eyeLookDownR",
  "CTRL_expressions_eyeLookLeftL",
  "CTRL_expressions_eyeLookLeftR",
  "CTRL_expressions_eyeLookRightL",
  "CTRL_expressions_eyeLookRightR",
  "CTRL_expressions_eyeLookUpL",
  "CTRL_expressions_eyeLookUpR",
  "CTRL_expressions_eyeLowerLidDownL",
  "CTRL_expressions_eyeLowerLidDownR",
  "CTRL_expressions_eyeLowerLidUpL",
  "CTRL_expressions_eyeLowerLidUpR",
  "CTRL_expressions_eyeParallelLookDirection",
  "CTRL_expressions_eyePupilNarrowL",
  "CTRL_expressions_eyePupilNarrowR",
  "CTRL_expressions_eyePupilWideL",
  "CTRL_expressions_eyePupilWideR",
  "CTRL_expressions_eyeRelaxL",
  "CTRL_expressions_eyeRelaxR",
  "CTRL_expressions_eyeSquintInnerL",
  "CTRL_expressions_eyeSquintInnerR",
  "CTRL_expressions_eyeUpperLidUpL",
  "CTRL_expressions_eyeUpperLidUpR",
  "CTRL_expressions_eyeWidenL",
  "CTRL_expressions_eyeWidenR",
  "CTRL_expressions_eyelashesDownINL",
  "CTRL_expressions_eyelashesDownINR",
  "CTRL_expressions_eyelashesDownOUTL",
  "CTRL_expressions_eyelashesDownOUTR",
  "CTRL_expressions_eyelashesUpINL",
  "CTRL_expressions_eyelashesUpINR",
  "CTRL_expressions_eyelashesUpOUTL",
  "CTRL_expressions_eyelashesUpOUTR",
  "CTRL_expressions_jawBack",
  "CTRL_expressions_jawChinCompressL",
  "CTRL_expressions_jawChinCompressR",
  "CTRL_expressions_jawChinRaiseDL",
  "CTRL_expressions_jawChinRaiseDR",
  "CTRL_expressions_jawChinRaiseUL",
  "CTRL_expressions_jawChinRaiseUR",
  "CTRL_expressions_jawClenchL",
  "CTRL_expressions_jawClenchR",
  "CTRL_expressions_jawFwd",
  "CTRL_expressions_jawLeft",
  "CTRL_expressions_jawOpen",
  "CTRL_expressions_jawOpenExtreme",
  "CTRL_expressions_jawRight",
  "CTRL_expressions_mouthCheekBlowL",
  "CTRL_expressions_mouthCheekBlowR",
  "CTRL_expressions_mouthCheekSuckL",
  "CTRL_expressions_mouthCheekSuckR",
  "CTRL_expressions_mouthCornerDepressL",
  "CTRL_expressions_mouthCornerDepressR",
  "CTRL_expressions_mouthCornerDownL",
  "CTRL_expressions_mouthCornerDownR",
  "CTRL_expressions_mouthCornerNarrowL",
  "CTRL_expressions_mouthCornerNarrowR",
  "CTRL_expressions_mouthCornerPullL",
  "CTRL_expressions_mouthCornerPullR",
  "CTRL_expressions_mouthCornerRounderDL",
  "CTRL_expressions_mouthCornerRounderDR",
  "CTRL_expressions_mouthCornerRounderUL",
  "CTRL_expressions_mouthCornerRounderUR",
  "CTRL_expressions_mouthCornerSharpenDL",
  "CTRL_expressions_mouthCornerSharpenDR",
  "CTRL_expressions_mouthCornerSharpenUL",
  "CTRL_expressions_mouthCornerSharpenUR",
  "CTRL_expressions_mouthCornerUpL",
  "CTRL_expressions_mouthCornerUpR",
  "CTRL_expressions_mouthCornerWideL",
  "CTRL_expressions_mouthCornerWideR",
  "CTRL_expressions_mouthDimpleL",
  "CTRL_expressions_mouthDimpleR",
  "CTRL_expressions_mouthDown",
  "CTRL_expressions_mouthFunnelDL",
  "CTRL_expressions_mouthFunnelDR",
  "CTRL_expressions_mouthFunnelUL",
  "CTRL_expressions_mouthFunnelUR",
  "CTRL_expressions_mouthLeft",
  "CTRL_expressions_mouthLipsBlowL",
  "CTRL_expressions_mouthLipsBlowR",
  "CTRL_expressions_mouthLipsPressL",
  "CTRL_expressions_mouthLipsPressR",
  "CTRL_expressions_mouthLipsPullDL",
  "CTRL_expressions_mouthLipsPullDR",
  "CTRL_expressions_mouthLipsPullUL",
  "CTRL_expressions_mouthLipsPullUR",
  "CTRL_expressions_mouthLipsPurseDL",
  "CTRL_expressions_mouthLipsPurseDR",
  "CTRL_expressions_mouthLipsPurseUL",
  "CTRL_expressions_mouthLipsPurseUR",
  "CTRL_expressions_mouthLipsPushDL",
  "CTRL_expressions_mouthLipsPushDR",
  "CTRL_expressions_mouthLipsPushUL",
  "CTRL_expressions_mouthLipsPushUR",
  "CTRL_expressions_mouthLipsStickyLPh1",
  "CTRL_expressions_mouthLipsStickyLPh2",
  "CTRL_expressions_mouthLipsStickyLPh3",
  "CTRL_expressions_mouthLipsStickyRPh1",
  "CTRL_expressions_mouthLipsStickyRPh2",
  "CTRL_expressions_mouthLipsStickyRPh3",
  "CTRL_expressions_mouthLipsThickDL",
  "CTRL_expressions_mouthLipsThickDR",
  "CTRL_expressions_mouthLipsThickInwardDL",
  "CTRL_expressions_mouthLipsThickInwardDR",
  "CTRL_expressions_mouthLipsThickInwardUL",
  "CTRL_expressions_mouthLipsThickInwardUR",
  "CTRL_expressions_mouthLipsThickUL",
  "CTRL_expressions_mouthLipsThickUR",
  "CTRL_expressions_mouthLipsThinDL",
  "CTRL_expressions_mouthLipsThinDR",
  "CTRL_expressions_mouthLipsThinInwardDL",
  "CTRL_expressions_mouthLipsThinInwardDR",
  "CTRL_expressions_mouthLipsThinInwardUL",
  "CTRL_expressions_mouthLipsThinInwardUR",
  "CTRL_expressions_mouthLipsThinUL",
  "CTRL_expressions_mouthLipsThinUR",
  "CTRL_expressions_mouthLipsTightenDL",
  "CTRL_expressions_mouthLipsTightenDR",
  "CTRL_expressions_mouthLipsTightenUL",
  "CTRL_expressions_mouthLipsTightenUR",
  "CTRL_expressions_mouthLipsTogetherDL",
  "CTRL_expressions_mouthLipsTogetherDR",
  "CTRL_expressions_mouthLipsTogetherUL",
  "CTRL_expressions_mouthLipsTogetherUR",
  "CTRL_expressions_mouthLipsTowardsDL",
  "CTRL_expressions_mouthLipsTowardsDR",
  "CTRL_expressions_mouthLipsTowardsUL",
  "CTRL_expressions_mouthLipsTowardsUR",
  "CTRL_expressions_mouthLowerLipBiteL",
  "CTRL_expressions_mouthLowerLipBiteR",
  "CTRL_expressions_mouthLowerLipDepressL",
  "CTRL_expressions_mouthLowerLipDepressR",
  "CTRL_expressions_mouthLowerLipRollInL",
  "CTRL_expressions_mouthLowerLipRollInR",
  "CTRL_expressions_mouthLowerLipRollOutL",
  "CTRL_expressions_mouthLowerLipRollOutR",
  "CTRL_expressions_mouthLowerLipShiftLeft",
  "CTRL_expressions_mouthLowerLipShiftRight",
  "CTRL_expressions_mouthLowerLipTowardsTeethL",
  "CTRL_expressions_mouthLowerLipTowardsTeethR",
  "CTRL_expressions_mouthPressDL",
  "CTRL_expressions_mouthPressDR",
  "CTRL_expressions_mouthPressUL",
  "CTRL_expressions_mouthPressUR",
  "CTRL_expressions_mouthRight",
  "CTRL_expressions_mouthSharpCornerPullL",
  "CTRL_expressions_mouthSharpCornerPullR",
  "CTRL_expressions_mouthStickyDC",
  "CTRL_expressions_mouthStickyDINL",
  "CTRL_expressions_mouthStickyDINR",
  "CTRL_expressions_mouthStickyDOUTL",
  "CTRL_expressions_mouthStickyDOUTR",
  "CTRL_expressions_mouthStickyUC",
  "CTRL_expressions_mouthStickyUINL",
  "CTRL_expressions_mouthStickyUINR",
  "CTRL_expressions_mouthStickyUOUTL",
  "CTRL_expressions_mouthStickyUOUTR",
  "CTRL_expressions_mouthStretchL",
  "CTRL_expressions_mouthStretchLipsCloseL",
  "CTRL_expressions_mouthStretchLipsCloseR",
  "CTRL_expressions_mouthStretchR",
  "CTRL_expressions_mouthUp",
  "CTRL_expressions_mouthUpperLipBiteL",
  "CTRL_expressions_mouthUpperLipBiteR",
  "CTRL_expressions_mouthUpperLipRaiseL",
  "CTRL_expressions_mouthUpperLipRaiseR",
  "CTRL_expressions_mouthUpperLipRollInL",
  "CTRL_expressions_mouthUpperLipRollInR",
  "CTRL_expressions_mouthUpperLipRollOutL",
  "CTRL_expressions_mouthUpperLipRollOutR",
  "CTRL_expressions_mouthUpperLipShiftLeft",
  "CTRL_expressions_mouthUpperLipShiftRight",
  "CTRL_expressions_mouthUpperLipTowardsTeethL",
  "CTRL_expressions_mouthUpperLipTowardsTeethR",
  "CTRL_expressions_neckDigastricDown",
  "CTRL_expressions_neckDigastricUp",
  "CTRL_expressions_neckMastoidContractL",
  "CTRL_expressions_neckMastoidContractR",
  "CTRL_expressions_neckStretchL",
  "CTRL_expressions_neckStretchR",
  "CTRL_expressions_neckSwallowPh1",
  "CTRL_expressions_neckSwallowPh2",
  "CTRL_expressions_neckSwallowPh3",
  "CTRL_expressions_neckSwallowPh4",
  "CTRL_expressions_neckThroatDown",
  "CTRL_expressions_neckThroatExhale",
  "CTRL_expressions_neckThroatInhale",
  "CTRL_expressions_neckThroatUp",
  "CTRL_expressions_noseNasolabialDeepenL",
  "CTRL_expressions_noseNasolabialDeepenR",
  "CTRL_expressions_noseNostrilCompressL",
  "CTRL_expressions_noseNostrilCompressR",
  "CTRL_expressions_noseNostrilDepressL",
  "CTRL_expressions_noseNostrilDepressR",
  "CTRL_expressions_noseNostrilDilateL",
  "CTRL_expressions_noseNostrilDilateR",
  "CTRL_expressions_noseWrinkleL",
  "CTRL_expressions_noseWrinkleR",
  "CTRL_expressions_noseWrinkleUpperL",
  "CTRL_expressions_noseWrinkleUpperR",
  "CTRL_expressions_teethBackD",
  "CTRL_expressions_teethBackU",
  "CTRL_expressions_teethDownD",
  "CTRL_expressions_teethDownU",
  "CTRL_expressions_teethFwdD",
  "CTRL_expressions_teethFwdU",
  "CTRL_expressions_teethLeftD",
  "CTRL_expressions_teethLeftU",
  "CTRL_expressions_teethRightD",
  "CTRL_expressions_teethRightU",
  "CTRL_expressions_teethUpD",
  "CTRL_expressions_teethUpU",
  "CTRL_expressions_tongueBendDown",
  "CTRL_expressions_tongueBendUp",
  "CTRL_expressions_tongueDown",
  "CTRL_expressions_tongueIn",
  "CTRL_expressions_tongueLeft",
  "CTRL_expressions_tongueNarrow",
  "CTRL_expressions_tongueOut",
  "CTRL_expressions_tonguePress",
  "CTRL_expressions_tongueRight",
  "CTRL_expressions_tongueRoll",
  "CTRL_expressions_tongueThick",
  "CTRL_expressions_tongueThin",
  "CTRL_expressions_tongueTipDown",
  "CTRL_expressions_tongueTipLeft",
  "CTRL_expressions_tongueTipRight",
  "CTRL_expressions_tongueTipUp",
  "CTRL_expressions_tongueTwistLeft",
  "CTRL_expressions_tongueTwistRight",
  "CTRL_expressions_tongueUp",
  "CTRL_expressions_tongueWide"
]