Source: Roblox Creator Hub · CC BY 4.0 · View source · Code samples: MIT Imported 2026-10-03. Formatting adapted for this site.
FacsActionUnit
Represents a Facial Action Coding System (FACS) pose used by EditableMesh facial-animation methods such as EditableMesh:GetFacsPose() and EditableMesh:SetFacsPose().
Items
| Name | Value | Description |
|---|---|---|
| ChinRaiserUpperLip | 0 | Moves the upper lip upward when the chin raiser is engaged. |
| ChinRaiser | 1 | Raises the chin and moves the lower lip upward. |
| FlatPucker | 2 | Moves the mouth corners inward and presses the lips against the teeth. |
| Funneler | 3 | Forms an O shape with the mouth. |
| LowerLipSuck | 4 | Rolls the lower lip over the teeth. |
| LipPresser | 5 | Presses the lips together. |
| LipsTogether | 6 | Brings the lips together relative to the jaw-drop pose. |
| MouthLeft | 7 | Moves the mouth to the character's left. |
| MouthRight | 8 | Moves the mouth to the character's right. |
| Pucker | 9 | Puckers the lips into a kiss-like shape. |
| UpperLipSuck | 10 | Rolls the upper lip over the teeth. |
| LeftCheekPuff | 11 | Puffs the left cheek. |
| LeftDimpler | 12 | Moves the left mouth corner backward to form a dimple. |
| LeftLipCornerDown | 13 | Lowers the left mouth corner into a frown. |
| LeftLowerLipDepressor | 14 | Lowers the left side of the lower lip to reveal the lower teeth. |
| LeftLipCornerPuller | 15 | Raises the left mouth corner into a smile. |
| LeftLipStretcher | 16 | Stretches the left mouth corner outward. |
| LeftUpperLipRaiser | 17 | Raises the left side of the upper lip to reveal the upper teeth. |
| RightCheekPuff | 18 | Puffs the right cheek. |
| RightDimpler | 19 | Moves the right mouth corner backward to form a dimple. |
| RightLipCornerDown | 20 | Lowers the right mouth corner into a frown. |
| RightLowerLipDepressor | 21 | Lowers the right side of the lower lip to reveal the lower teeth. |
| RightLipCornerPuller | 22 | Raises the right mouth corner into a smile. |
| RightLipStretcher | 23 | Stretches the right mouth corner outward. |
| RightUpperLipRaiser | 24 | Raises the right side of the upper lip to reveal the upper teeth. |
| JawDrop | 25 | Lowers the jaw to open the mouth. |
| JawLeft | 26 | Moves the mouth and jaw toward the character's left. |
| JawRight | 27 | Moves the mouth and jaw toward the character's right. |
| Corrugator | 28 | Moves the left and right eyebrows inward. |
| LeftBrowLowerer | 29 | Lowers the left eyebrow. |
| LeftOuterBrowRaiser | 30 | Raises the outer part of the left eyebrow. |
| LeftNoseWrinkler | 31 | Raises the left nostril and wrinkles the left side of the nose. |
| LeftInnerBrowRaiser | 32 | Raises the inner half of the left eyebrow. |
| RightBrowLowerer | 33 | Lowers the right eyebrow. |
| RightOuterBrowRaiser | 34 | Raises the outer part of the right eyebrow. |
| RightInnerBrowRaiser | 35 | Raises the inner half of the right eyebrow. |
| RightNoseWrinkler | 36 | Raises the right nostril and wrinkles the right side of the nose. |
| EyesLookDown | 37 | Moves the gaze downward. |
| EyesLookLeft | 38 | Moves the gaze to the left. |
| EyesLookUp | 39 | Moves the gaze upward. |
| EyesLookRight | 40 | Moves the gaze to the right. |
| LeftCheekRaiser | 41 | Raises the left cheek and squints the left eye. |
| LeftEyeUpperLidRaiser | 42 | Raises the left upper eyelid to reveal more of the eye above the iris. |
| LeftEyeClosed | 43 | Closes the left eyelid. |
| RightCheekRaiser | 44 | Raises the right cheek and squints the right eye. |
| RightEyeUpperLidRaiser | 45 | Raises the right upper eyelid to reveal more of the eye above the iris. |
| RightEyeClosed | 46 | Closes the right eyelid. |
| TongueDown | 47 | Bends the tongue downward. |
| TongueOut | 48 | Extends the tip of the tongue out of the mouth. |
| TongueUp | 49 | Bends the tongue upward. |
ChinRaiserUpperLip
Moves the upper lip upward when the chin raiser is engaged.
| Field | Value |
|---|---|
| value | 0 |
ChinRaiser
Raises the chin and moves the lower lip upward.
| Field | Value |
|---|---|
| value | 1 |
FlatPucker
Moves the mouth corners inward and presses the lips against the teeth.
| Field | Value |
|---|---|
| value | 2 |
Funneler
Forms an O shape with the mouth.
| Field | Value |
|---|---|
| value | 3 |
LowerLipSuck
Rolls the lower lip over the teeth.
| Field | Value |
|---|---|
| value | 4 |
LipPresser
Presses the lips together.
| Field | Value |
|---|---|
| value | 5 |
LipsTogether
Brings the lips together relative to the jaw-drop pose.
| Field | Value |
|---|---|
| value | 6 |
MouthLeft
Moves the mouth to the character's left.
| Field | Value |
|---|---|
| value | 7 |
MouthRight
Moves the mouth to the character's right.
| Field | Value |
|---|---|
| value | 8 |
Pucker
Puckers the lips into a kiss-like shape.
| Field | Value |
|---|---|
| value | 9 |
UpperLipSuck
Rolls the upper lip over the teeth.
| Field | Value |
|---|---|
| value | 10 |
LeftCheekPuff
Puffs the left cheek.
| Field | Value |
|---|---|
| value | 11 |
LeftDimpler
Moves the left mouth corner backward to form a dimple.
| Field | Value |
|---|---|
| value | 12 |
LeftLipCornerDown
Lowers the left mouth corner into a frown.
| Field | Value |
|---|---|
| value | 13 |
LeftLowerLipDepressor
Lowers the left side of the lower lip to reveal the lower teeth.
| Field | Value |
|---|---|
| value | 14 |
LeftLipCornerPuller
Raises the left mouth corner into a smile.
| Field | Value |
|---|---|
| value | 15 |
LeftLipStretcher
Stretches the left mouth corner outward.
| Field | Value |
|---|---|
| value | 16 |
LeftUpperLipRaiser
Raises the left side of the upper lip to reveal the upper teeth.
| Field | Value |
|---|---|
| value | 17 |
RightCheekPuff
Puffs the right cheek.
| Field | Value |
|---|---|
| value | 18 |
RightDimpler
Moves the right mouth corner backward to form a dimple.
| Field | Value |
|---|---|
| value | 19 |
RightLipCornerDown
Lowers the right mouth corner into a frown.
| Field | Value |
|---|---|
| value | 20 |
RightLowerLipDepressor
Lowers the right side of the lower lip to reveal the lower teeth.
| Field | Value |
|---|---|
| value | 21 |
RightLipCornerPuller
Raises the right mouth corner into a smile.
| Field | Value |
|---|---|
| value | 22 |
RightLipStretcher
Stretches the right mouth corner outward.
| Field | Value |
|---|---|
| value | 23 |
RightUpperLipRaiser
Raises the right side of the upper lip to reveal the upper teeth.
| Field | Value |
|---|---|
| value | 24 |
JawDrop
Lowers the jaw to open the mouth.
| Field | Value |
|---|---|
| value | 25 |
JawLeft
Moves the mouth and jaw toward the character's left.
| Field | Value |
|---|---|
| value | 26 |
JawRight
Moves the mouth and jaw toward the character's right.
| Field | Value |
|---|---|
| value | 27 |
Corrugator
Moves the left and right eyebrows inward.
| Field | Value |
|---|---|
| value | 28 |
LeftBrowLowerer
Lowers the left eyebrow.
| Field | Value |
|---|---|
| value | 29 |
LeftOuterBrowRaiser
Raises the outer part of the left eyebrow.
| Field | Value |
|---|---|
| value | 30 |
LeftNoseWrinkler
Raises the left nostril and wrinkles the left side of the nose.
| Field | Value |
|---|---|
| value | 31 |
LeftInnerBrowRaiser
Raises the inner half of the left eyebrow.
| Field | Value |
|---|---|
| value | 32 |
RightBrowLowerer
Lowers the right eyebrow.
| Field | Value |
|---|---|
| value | 33 |
RightOuterBrowRaiser
Raises the outer part of the right eyebrow.
| Field | Value |
|---|---|
| value | 34 |
RightInnerBrowRaiser
Raises the inner half of the right eyebrow.
| Field | Value |
|---|---|
| value | 35 |
RightNoseWrinkler
Raises the right nostril and wrinkles the right side of the nose.
| Field | Value |
|---|---|
| value | 36 |
EyesLookDown
Moves the gaze downward.
| Field | Value |
|---|---|
| value | 37 |
EyesLookLeft
Moves the gaze to the left.
| Field | Value |
|---|---|
| value | 38 |
EyesLookUp
Moves the gaze upward.
| Field | Value |
|---|---|
| value | 39 |
EyesLookRight
Moves the gaze to the right.
| Field | Value |
|---|---|
| value | 40 |
LeftCheekRaiser
Raises the left cheek and squints the left eye.
| Field | Value |
|---|---|
| value | 41 |
LeftEyeUpperLidRaiser
Raises the left upper eyelid to reveal more of the eye above the iris.
| Field | Value |
|---|---|
| value | 42 |
LeftEyeClosed
Closes the left eyelid.
| Field | Value |
|---|---|
| value | 43 |
RightCheekRaiser
Raises the right cheek and squints the right eye.
| Field | Value |
|---|---|
| value | 44 |
RightEyeUpperLidRaiser
Raises the right upper eyelid to reveal more of the eye above the iris.
| Field | Value |
|---|---|
| value | 45 |
RightEyeClosed
Closes the right eyelid.
| Field | Value |
|---|---|
| value | 46 |
TongueDown
Bends the tongue downward.
| Field | Value |
|---|---|
| value | 47 |
TongueOut
Extends the tip of the tongue out of the mouth.
| Field | Value |
|---|---|
| value | 48 |
TongueUp
Bends the tongue upward.
| Field | Value |
|---|---|
| value | 49 |