# On Face Prefabs

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## GLTF[​](#gltf "Direct link to GLTF")

```
"faces": [

    {

        "gltf": {

            "@mesh": "path/to/gltf/model",

            "rotation": "0 0 0",

            "scale": "1.0 1.0 1.0",

            "translation": "0.0 0.0 0.0",

            "animation": {

                "name": "Animation 1",

                "mode": "loop",

                "seek_position": 100

            },

            "@use_physics": false,

            "gravity": "0.0 -1000.0 0.0",

            "bones": {

                "bone_1": 1.0,

                "bone_2": 0.0,

                "bone_3": 1.0,

                "bone_4": 0.0,

                "bone_5": 1.0

            },

            "colliders": [

                {

                    "center": "0. 0. 0.",

                    "radius": 100.0

                },

                {

                    "center": "10. 110. 420.",

                    "radius": 650.0

                },

                {

                    "center": "14. 300. 156.",

                    "radius": 10.0

                }

            ],

            "constraints": [

                {

                    "from": "bone_1",

                    "to": "bone_2",

                    "distance": 10.0

                },

                {

                    "from": "bone_2",

                    "to": "bone_3",

                    "distance": 50.0

                },

                {

                    "from": "bone_3",

                    "to": "bone_4",

                    "distance": 30.0

                },

                {

                    "from": "bone_4",

                    "to": "bone_5",

                    "distance": 60.0

                }

            ],

            "damping": 0.99

        }

        // ...

    }

    // ...

]
```

Place a 3D model in GLTF format on the face.

| Parameter           | Description                                                                                                                                                                                                                                                                                                                                                                                                                                                |                               Optional                               | Default Value |
| :------------------ | :--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | :------------------------------------------------------------------: | :-----------: |
| `@mesh`             | Path to a GLTF model. The leading `@` in the parameter name is required. Supported formats are `.glb` and `.gltf`. The model and all associated files, such as shaders, textures, and sounds, must be located in the same folder.                                                                                                                                                                                                                          |                                  *+*                                 |      *+*      |
| `rotation`          | Rotation angles, in degrees, around the *X*, *Y*, and *Z* axes. Note the default value.                                                                                                                                                                                                                                                                                                                                                                    | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |  `"-90 0 0"`  |
| `scale`             | Scale along the *X*, *Y*, and *Z* axes.                                                                                                                                                                                                                                                                                                                                                                                                                    | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |   `"1 1 1"`   |
| `translation`       | Translates the model along the *X*, *Y*, and *Z* axes, in millimetres.                                                                                                                                                                                                                                                                                                                                                                                     | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |   `"0 0 0"`   |
| `animation`         | Plays an animation from the GLTF file. **All keys are optional**; in most cases, an empty object is enough to play the default animation.*Parameters:*`name` - Selects an animation from the file by name.`seek_position` - Playback start position relative to the beginning of the animation, in milliseconds.`mode` - Determines how to play the animation selected by `name`. Possible values are `off`, `loop`, `once`, `once_reversed`, and `fixed`. | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |      `{}`     |
| `@use_physics`      | Loads the GLTF model with physics simulation. The leading `@` in the parameter name is required.                                                                                                                                                                                                                                                                                                                                                           | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |    `false`    |
| `cut`               | Enables head occlusion geometry. Allowed values are `head` and `head_with_ears`; omit the parameter to disable cutting.                                                                                                                                                                                                                                                                                                                                    | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |   `disabled`  |
| `gravity`           | Sets the gravity vector along the *X*, *Y*, and *Z* axes.                                                                                                                                                                                                                                                                                                                                                                                                  | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |   `"0 0 0"`   |
| `bones`             | Sets bone inverse masses. The object keys are bone names and the values are inverse masses.                                                                                                                                                                                                                                                                                                                                                                | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |      `{}`     |
| `colliders`         | Adds sphere colliders for physical bones. Each collider requires both `center` and `radius`.*Parameters:*`center` - *X*, *Y*, and *Z* coordinates of the center of the sphere.`radius` - Sphere radius.                                                                                                                                                                                                                                                    | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |      `[]`     |
| `constraints`       | Adds constraints between bones. Each constraint requires `from` and `to`; the legacy-named `distance` value is optional.*Parameters:*`from` - Name of the `from` bone.`to` - Name of the destination bone.`distance` - Optional constraint strength (the actual length is calculated from the bones). Values below `1` create a flexible constraint; values greater than or equal to `1`, or omission of this parameter, create a rigid constraint.        | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |      `[]`     |
| `bones_in_mv_space` | Performs physical-bone calculations in model-view space.                                                                                                                                                                                                                                                                                                                                                                                                   | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |    `false`    |
| `damping`           | Controls damping for the physics simulation. Recommended values are in the range `[0.9, 1.0]`.                                                                                                                                                                                                                                                                                                                                                             | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.99`    |

note

When creating a 3D model in GLTF format for an effect, we recommend using our [head geometry](/far-sdk/assets/files/head-a7e3b48b08e13d5c85ae83246dbe64cb.glb) as a template. If you create the model without our head geometry, set its scale to `0.1` and rotate it `-90` degrees around the `X` axis in the prefab.

## Video Texture[​](#video-texture "Direct link to Video Texture")

```
"faces": [

    {

        "video_texture": {

            "@mesh": "path/to/gltf/model",

            "use_separate_alpha": true,

            "video": "path/to/video/texture",

            "alpha": "path/to/video/texture/alpha",

            "rotation": "0 0 0",

            "scale": "1.0 1.0 1.0",

            "translation": "0.0 0.0 0.0"

        }

        // ...

    }

    // ...

]
```

| Parameter            | Description                                                                                                                                                                                                                                                                                                        |                               Optional                               |   Default Value  |
| :------------------- | :----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | :------------------------------------------------------------------: | :--------------: |
| `@mesh`              | Path to a GLTF model. The leading `@` in the parameter name is required. Supported formats are `.glb` and `.gltf`. A built-in plane is used by default.                                                                                                                                                            | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") | `built-in plane` |
| `use_separate_alpha` | Set this parameter to `false` for a combined video with color on the left and alpha on the right. Set it to `true` when color and alpha are provided as separate videos.                                                                                                                                           |                                  *+*                                 |        *+*       |
| `video`              | Path to a video texture file. When `use_separate_alpha` is `false`, the video must be split in half, with color on the left and alpha on the right. For more information, see the supported [video formats](https://docs.banuba.com/far-sdk/tutorials/capabilities/technical_specification#video-formats-support). |                                  *+*                                 |        *+*       |
| `alpha`              | Path to the alpha video. This parameter is required when `use_separate_alpha` is `true` and ignored in combined mode. For more information, see the supported [video formats](https://docs.banuba.com/far-sdk/tutorials/capabilities/technical_specification#video-formats-support).                               | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |       \`\`       |
| `rotation`           | Rotation angles, in degrees, around the *X*, *Y*, and *Z* axes.                                                                                                                                                                                                                                                    | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `"0 0 0"`    |
| `scale`              | Scale along the *X*, *Y*, and *Z* axes.                                                                                                                                                                                                                                                                            | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `"1 1 1"`    |
| `translation`        | Translates the model along the *X*, *Y*, and *Z* axes, in millimetres.                                                                                                                                                                                                                                             | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `"0 0 0"`    |

`use_separate_alpha` is required because playback does not start until the alpha mode is selected. Set it to `false` for a side-by-side video (color on the left, alpha on the right), or to `true` and provide `alpha` as a second video. Videos loop automatically. If `@mesh` is omitted, the built-in plane is used.

## Earrings[​](#earrings "Direct link to Earrings")

```
"faces": [

    {

        "earrings": {

            "@mesh_left": "path/to/left/gltf/model",

            "@mesh_right": "path/to/right/gltf/model",

            "@use_physics": true,

            "left": {

                "scale": "1 1 1",

                "rotation": "0 0 0",

                "translation": "0 0 0",

                "animation": {

                    "name": "static",

                    "mode": "fixed"

                },

                "gravity": "0.0 -1800.0 0.0",

                "damping": 0.99,

                "bones": {

                    "Bone_L_1": 0.0,

                    "Bone_L_2": 1.0,

                    "Bone_L_3": 1.0,

                    "Bone_L_4": 1.0,

                    "Bone_L_5": 1.0

                }

            },

            "right": {

                "scale": "1 1 1",

                "rotation": "0 0 0",

                "translation": "0 0 0",

                "animation": {

                    "name": "static",

                    "mode": "fixed"

                },

                "gravity": "0.0 -1800.0 0.0",

                "damping": 0.99,

                "bones": {

                    "Bone_R_1": 0.0,

                    "Bone_R_2": 1.0,

                    "Bone_R_3": 1.0,

                    "Bone_R_4": 1.0,

                    "Bone_R_5": 1.0

                }

            }

        }

        // ...

    }

    // ...

]
```

Place two GLTF earring models, one on each ear.

| Parameter      | Description                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |                               Optional                               | Default Value |
| :------------- | :-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | :------------------------------------------------------------------: | :-----------: |
| `@mesh_left`   | Path to the GLTF model for the left earring. The leading `@` in the parameter name is required. Supported formats are `.glb` and `.gltf`. The model and all associated files, such as shaders, textures, and sounds, must be located in the same folder.                                                                                                                                                                                                                                                                                                                                            |                                  *+*                                 |      *+*      |
| `@mesh_right`  | Path to the GLTF model for the right earring. The leading `@` in the parameter name is required. Supported formats are `.glb` and `.gltf`. The model and all associated files, such as shaders, textures, and sounds, must be located in the same folder.                                                                                                                                                                                                                                                                                                                                           |                                  *+*                                 |      *+*      |
| `@use_physics` | Loads the GLTF models with physics simulation. The leading `@` in the parameter name is required.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `true`    |
| `left`         | Settings for the left earring. All nested parameters are optional.*Parameters:*`scale` - Scale as `X Y Z`. Default: `1 1 1`.`rotation` - Rotation in degrees as `X Y Z`. Default: `0 0 0`.`translation` - Translation in millimetres as `X Y Z`. Default: `0 0 0`.`animation` - Animation object with optional `name`, `mode`, and `seek_position`; `mode` is one of `off`, `loop`, `once`, `once_reversed`, or `fixed`.`gravity` - Gravity vector as `X Y Z`. Default: `0 0 0`.`damping` - Physics damping. Default: `0.99`.`bones` - Object mapping bone names to inverse masses. Default: `{}`.  | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |      `{}`     |
| `right`        | Settings for the right earring. All nested parameters are optional.*Parameters:*`scale` - Scale as `X Y Z`. Default: `1 1 1`.`rotation` - Rotation in degrees as `X Y Z`. Default: `0 0 0`.`translation` - Translation in millimetres as `X Y Z`. Default: `0 0 0`.`animation` - Animation object with optional `name`, `mode`, and `seek_position`; `mode` is one of `off`, `loop`, `once`, `once_reversed`, or `fixed`.`gravity` - Gravity vector as `X Y Z`. Default: `0 0 0`.`damping` - Physics damping. Default: `0.99`.`bones` - Object mapping bone names to inverse masses. Default: `{}`. | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |      `{}`     |

Transform, animation, and physics settings belong inside `left` or `right`; they are not top-level earring parameters.

## Action Units[​](#action-units "Direct link to Action Units")

```
"faces": [

    {

        "action_units": {},

        // ...

    }

    // ...

]
```

Expose tracked facial action-unit values to GLTF models. This prefab has no parameters.

## Eyes Whitening[​](#eyes-whitening "Direct link to Eyes Whitening")

**Usage**

```
"faces": [

    {

        "eyes_whitening": {

            "strength": 1.0

        }

        // ...

    }

    // ...

]
```

Makes the eyes look more expressive by whitening them.

| Parameter  | Description                                                                  | Optional | Default Value |
| :--------- | :--------------------------------------------------------------------------- | :------: | :-----------: |
| `strength` | Eye-whitening strength as a floating-point number in the range `[0.0, 1.0]`. |    *+*   |      *+*      |

**Preview**

![Right image compare](/far-sdk/assets/images/original-8823b66ca7c9e5a54656f6ee9b77c29f.jpg)![Left image compare](/far-sdk/assets/images/EyesWhitening-53c06893890dff12356d60e292ee7b23.jpg)

Drag

## Eyes Flare[​](#eyes-flare "Direct link to Eyes Flare")

**Usage**

```
"faces": [

    {

        "eyes_flare": {

            "strength": 1.0

        }

        // ...

    }

    // ...

]
```

Apply flare to the eyes.

| Parameter  | Description                                                            | Optional | Default Value |
| :--------- | :--------------------------------------------------------------------- | :------: | :-----------: |
| `strength` | Flare brightness as a floating-point number in the range `[0.0, 1.0]`. |    *+*   |      *+*      |

**Preview**

![Right image compare](/far-sdk/assets/images/original-8823b66ca7c9e5a54656f6ee9b77c29f.jpg)![Left image compare](/far-sdk/assets/images/EyesFlare-aaa9dfc2204ee98f6874e0556099d0c8.jpg)

Drag

## Teeth Whitening[​](#teeth-whitening "Direct link to Teeth Whitening")

**Usage**

```
"faces": [

    {

        "teeth_whitening": {

            "strength": 1.0

        }

        // ...

    }

    // ...

]
```

Apply whitening to the teeth.

| Parameter  | Description                                                                    | Optional | Default Value |
| :--------- | :----------------------------------------------------------------------------- | :------: | :-----------: |
| `strength` | Teeth-whitening strength as a floating-point number in the range `[0.0, 1.0]`. |    *+*   |      *+*      |

**Preview**

![Right image compare](/far-sdk/assets/images/original-8823b66ca7c9e5a54656f6ee9b77c29f.jpg)![Left image compare](/far-sdk/assets/images/teeth-ad89bfabc20c76750c21b2348693680b.jpg)

Drag

## Softlight[​](#softlight "Direct link to Softlight")

**Usage**

```
"faces": [

    {

        "softlight": {

            "strength": 1.0,

            "texture": "path/to/file"

        }

        // ...

    }

    // ...

]
```

Apply softlight to the face.

| Parameter  | Description                                                              |                               Optional                               |         Default Value        |
| :--------- | :----------------------------------------------------------------------- | :------------------------------------------------------------------: | :--------------------------: |
| `strength` | Softlight strength as a floating-point number in the range `[0.0, 1.0]`. |                                  *+*                                 |              *+*             |
| `texture`  | Path to a custom softlight texture.                                      | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") | `built-in softlight texture` |

**Preview**

![Right image compare](/far-sdk/assets/images/original-8823b66ca7c9e5a54656f6ee9b77c29f.jpg)![Left image compare](/far-sdk/assets/images/SkinSoftening-e7800133c7d654b8372366266bdbf026.jpg)

Drag

## Morphing[​](#morphing "Direct link to Morphing")

Morph (i.e., deform) specific parts of the face.

**Usage**

```
"faces": [

    {

        "morphing": {

            "eyebrows": {

                "spacing": 0.6,

                "height": 0.1,

                "bend": 1.0

            },

            "eyes": {

                "rounding": 0.6,

                "enlargement": 0.3,

                "height": 0,

                "spacing": 0.3,

                "squint": 0.3,

                "lower_eyelid_pos": 0,

                "lower_eyelid_size": 0,

                "down": 0,

                "eyelid_upper": 0,

                "eyelid_lower": 0

            },

            "face": {

                "narrowing": 0,

                "v_shape": 0,

                "cheekbones_narrowing": 0,

                "cheeks_narrowing": 0,

                "jaw_narrowing": 0,

                "chin_shortening": 0.3,

                "chin_narrowing": 0,

                "sunken_cheeks": 0.0,

                "cheeks_jaw_narrowing": 0,

                "jaw_wide_thin": 0,

                "chin": 0,

                "forehead": 0.3

            },

            "nose": {

                "width": 0.3,

                "length": 0.2,

                "tip_width": 0.1,

                "down_up": 0.1,

                "sellion": 0.2

            },

            "lips": {

                "size": 0.4,

                "height": 1.0,

                "thickness": 0.1,

                "mouth_size": 0.2,

                "smile": 0.8,

                "shape": 0.4,

                "sharp": 0.6

            }

        }

        // ...

    }

    // ...

]
```

All settings are optional.

Each group also accepts a numeric shorthand that controls its primary parameter: `eyebrows` controls `spacing`, `eyes` controls `rounding`, `face` controls `narrowing`, `nose` controls `width`, and `lips` controls `size`.

For low-level control, `weights` accepts exactly 37 numbers in this order: eyebrow spacing, height, bend; eye enlargement, rounding, height, spacing, squint, lower-eyelid position, lower-eyelid size; nose length, width, tip width; lip height, size, thickness, mouth size, smile, shape; face narrowing, V-shape, cheekbone narrowing, cheek narrowing, jaw narrowing, chin shortening, chin narrowing, sunken cheeks, cheek-and-jaw narrowing, jaw wide/thin; nose down/up; eyes down, upper eyelid, lower eyelid; chin, forehead, nose sellion, and lip sharpness. The named groups are less error-prone and are preferred.

### Eyebrows[​](#eyebrows "Direct link to Eyebrows")

| Parameter | Description                                                       |                               Optional                               | Default Value |
| :-------- | :---------------------------------------------------------------- | :------------------------------------------------------------------: | :-----------: |
| `spacing` | Adjusts the spacing between the eyebrows in the range *\[-1, 1]*. | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |
| `height`  | Raises or lowers the eyebrows in the range *\[-1, 1]*.            | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |
| `bend`    | Adjusts the eyebrow bend in the range *\[-1, 1]*.                 | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |

### Eyes[​](#eyes "Direct link to Eyes")

| Parameter           | Description                                                             |                               Optional                               | Default Value |
| :------------------ | :---------------------------------------------------------------------- | :------------------------------------------------------------------: | :-----------: |
| `rounding`          | Adjusts eye roundness in the range *\[0, 1]*.                           | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |
| `enlargement`       | Enlarges the eyes in the range *\[0, 1]*.                               | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |
| `height`            | Raises or lowers the eyes in the range *\[-1, 1]*.                      | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |
| `spacing`           | Adjusts the spacing between the eyes in the range *\[-1, 1]*.           | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |
| `squint`            | Adjusts the eyelids to make the person squint, in the range *\[-1, 1]*. | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |
| `lower_eyelid_pos`  | Raises or lowers the lower eyelid in the range *\[-1, 1]*.              | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |
| `lower_eyelid_size` | Enlarges or shrinks the lower eyelid in the range *\[-1, 1]*.           | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |
| `down`              | Moves the eyes downward in the range *\[0, 1]*.                         | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |
| `eyelid_upper`      | Adjusts the upper eyelid in the range *\[0, 1]*.                        | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |
| `eyelid_lower`      | Adjusts the lower eyelid in the range *\[0, 1]*.                        | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |

### Face[​](#face "Direct link to Face")

| Parameter              | Description                                                            |                               Optional                               | Default Value |
| :--------------------- | :--------------------------------------------------------------------- | :------------------------------------------------------------------: | :-----------: |
| `narrowing`            | Narrows the face in the range *\[0, 1]*.                               | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |
| `v_shape`              | Shrinks the chin and narrows the cheeks in the range *\[0, 1]*.        | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |
| `cheekbones_narrowing` | Narrows the cheekbones in the range *\[-1, 1]*.                        | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |
| `cheeks_narrowing`     | Narrows the cheeks in the range *\[0, 1]*.                             | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |
| `jaw_narrowing`        | Narrows the jaw in the range *\[0, 1]*.                                | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |
| `chin_shortening`      | Shortens the chin in the range *\[0, 1]*.                              | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |
| `chin_narrowing`       | Narrows the chin in the range *\[0, 1]*.                               | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |
| `sunken_cheeks`        | Sinks the cheeks and emphasizes the cheekbones in the range *\[0, 1]*. | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |
| `cheeks_jaw_narrowing` | Narrows the cheeks and jaw in the range *\[0, 1]*.                     | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |
| `jaw_wide_thin`        | Adjusts the jaw between wide and thin in the range *\[0, 1]*.          | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |
| `chin`                 | Adjusts the chin in the range *\[0, 1]*.                               | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |
| `forehead`             | Adjusts the forehead in the range *\[0, 1]*.                           | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |

### Nose[​](#nose "Direct link to Nose")

| Parameter   | Description                                       |                               Optional                               | Default Value |
| :---------- | :------------------------------------------------ | :------------------------------------------------------------------: | :-----------: |
| `width`     | Adjusts nose width in the range *\[-1, 1]*.       | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |
| `length`    | Adjusts nose length in the range *\[-1, 1]*.      | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |
| `tip_width` | Adjusts nose-tip width in the range *\[0, 1]*.    | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |
| `down_up`   | Moves the nose down or up in the range *\[0, 1]*. | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |
| `sellion`   | Adjusts the nose sellion in the range *\[0, 1]*.  | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |

### Lips[​](#lips "Direct link to Lips")

| Parameter    | Description                                                              |                               Optional                               | Default Value |
| :----------- | :----------------------------------------------------------------------- | :------------------------------------------------------------------: | :-----------: |
| `size`       | Adjusts the width and vertical size of the lips in the range *\[-1, 1]*. | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |
| `height`     | Raises or lowers the lips in the range *\[-1, 1]*.                       | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |
| `thickness`  | Adjusts lip thickness in the range *\[-1, 1]*.                           | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |
| `mouth_size` | Adjusts mouth size in the range *\[-1, 1]*.                              | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |
| `smile`      | Adjusts the smile in the range *\[0, 1]*.                                | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |
| `shape`      | Adjusts lip shape in the range *\[-1, 1]*.                               | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |
| `sharp`      | Adjusts lip sharpness in the range *\[0, 1]*.                            | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |     `0.0`     |

**Preview**

![Right image compare](/far-sdk/assets/images/original2-f74f044be90519e96c2b58b2db7ddce2.jpg)![Left image compare](/far-sdk/assets/images/morphing-92a63912987e8ddc904b6bf20cbea396.jpg)

Drag

## Eyes[​](#eyes-1 "Direct link to Eyes")

Recolors the eyes.

**Usage**

```
"faces": [

    {

        "eyes": {

            "eyes": "0 0.2 0.8 0.64",

            "corneosclera": "1 1 1 1",

            "pupil": "0 0 0 1"

        }

        // ...

    }

    // ...

]
```

| Parameter      | Description                                                     |                               Optional                               | Default Value |
| :------------- | :-------------------------------------------------------------- | :------------------------------------------------------------------: | :-----------: |
| `eyes`         | Iris color. See the color-format note in the prefabs overview.  | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |  `"0 0 0 0"`  |
| `corneosclera` | Corneosclera color, commonly called the sclera.                 | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |  `"0 0 0 0"`  |
| `pupil`        | Pupil color. See the color-format note in the prefabs overview. | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |  `"0 0 0 0"`  |

**Preview**

![Right image compare](/far-sdk/assets/images/original-8823b66ca7c9e5a54656f6ee9b77c29f.jpg)![Left image compare](/far-sdk/assets/images/eyes-c3613cadd6bb4ebe4eccbf7084c669f5.jpg)

Drag

## Hair[​](#hair "Direct link to Hair")

Recolors the hair. A single color is typically used to set the hair color:

```
"faces": [

    {

        "hair": {

            "color": [

                "0.19 0.06 0.25 1.0"

            ]

        }

        // ...

    }

    // ...

]
```

Hair recoloring also supports two to five colors to create a vertical gradient. The following example uses two colors:

```
"faces": [

    {

        "hair": {

            "color": [

                "0.19 0.06 0.25 1.0",

                "0.09 0.25 0.38 1.0"

            ]

        }

        // ...

    }

    // ...

]
```

| Parameter | Description                                                                                                                                                                    |                               Optional                               | Default Value |
| :-------- | :----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | :------------------------------------------------------------------: | :-----------: |
| `color`   | A single color string applies a solid color. An array of one to five colors is also accepted: one element applies a solid color, while two to five create a vertical gradient. | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |   `"0 0 0"`   |

**Preview**

![Right image compare](/far-sdk/assets/images/original-8823b66ca7c9e5a54656f6ee9b77c29f.jpg)![Left image compare](/far-sdk/assets/images/hair_colors-e5dc1a08bb938c142a4519d44206d47f.jpg)

Drag

## Hair Strands[​](#hair-strands "Direct link to Hair Strands")

Recolors individual hair strands. This prefab supports one to five colors for recoloring different strands.

```
"faces": [

    {

        "hair_strands": {

            "color": [

                "0.80 0.40 0.40 1.0",

                "0.83 0.40 0.40 1.0",

                "0.85 0.75 0.75 1.0",

                "0.87 0.60 0.60 1.0",

                "0.99 0.65 0.65 1.0"

            ]

        }

        // ...

    }

    // ...

]
```

| Parameter | Description                                                                                                         |                               Optional                               | Default Value |
| :-------- | :------------------------------------------------------------------------------------------------------------------ | :------------------------------------------------------------------: | :-----------: |
| `color`   | Applies one to five colors to hair strands. Provide a single color string or an array containing up to five colors. | ![\`${props.title} icon\`](/far-sdk/img/icons/check.svg "Supported") |  `"0 0 0 0"`  |

**Preview**

![Right image compare](/far-sdk/assets/images/original-8823b66ca7c9e5a54656f6ee9b77c29f.jpg)![Left image compare](/far-sdk/assets/images/hair_strands-0a1cc04eb7f5482cef64a0567d00716f.jpg)

Drag
