Scripting Object Reference

The following is a description of all scripting modules.

AnimationModule

The AnimationModule class implements object animation.

Classes

Class	Description
ArrayOfScalarSamplers	The `ArrayOfScalarSamplers` class describes an array of scalar samplers.
ArrayOfScalarSignals	The `ArrayOfScalarSamplers` class describes an array of scalar samplers.
ColorSampler	The `ColorSampler` class encapsulates a color sampler.
Driver	The `Driver` class encapsulates an animation driver.
RotationSampler	The `RotationSampler` class is an animation sampler for object rotation.
SamplerFactory	The `SamplerFactory` class creates different types of animation samplers.
ScalarSampler	The `ScalarSampler` class encapsulates a scalar value sampler.
TimeDriver	The `TimeDriver` class allows driving an animation sampler using time.
ValueDriver	The `ValueDriver` class allows driving an animation sampler using raw values.

AudioModule

The AudioModule class enables sound effects.

Classes

Class	Description
PlaybackController	The `PlaybackController` class enables control of audio playback.

CameraInfoModule

The CameraInfoModule class provides access to details about the device camera.

Enums

Enum	Description
CameraPosition	The `CameraPosition` enum describes the direction the camera is facing.

DeepLinkModule

The DeepLinkModule class exposes methods and properties to read the values that an external app sent to an effect.

DeviceMotionModule

The DeviceMotionModule class enables device movement detection.

DiagnosticsModule

The DiagnosticsModule class enables diagnostic logging.

Classes

Class	Description
TypeSystemMetadata	The `TypeSystemMetadata` class contains type system metadata.

FaceGesturesModule

The FaceGesturesModule class enables face orientation detection.

FaceTracking2DModule

The FaceTracking2DModule class enables tracking faces in 2D.

Classes

Class	Description
Face2D	The `Face2D` class exposes details of a tracked face.

FaceTrackingModule

The FaceTrackingModule class enables tracking faces in 3D.

Classes

Class	Description
Cheek	The `Cheek` class exposes the details of a detected cheek.
Chin	The `Chin` class exposes the details of a detected chin.
Eye	The `Eye` class exposes the details of a detected eye.
Eyebrow	The `Eyebrow` class exposes the details of a detected eyebrow.
Face	The `Face` class exposes details of a tracked face.
Forehead	The `Forehead` class exposes the details of a detected forehead.
Mouth	The `Mouth` class exposes the details of a detected mouth.
Nose	The `Nose` class exposes the details of a detected nose.

FontsModule

The FontsModule class is used for working with custom fonts in effects.

Classes

Class	Description
FontId	The `FontsId` class identifies a font in an effect.

HandTrackingModule

The HandTrackingModule class enables hand tracking.

Classes

Class	Description
Hand	The `Hand` class describes a hand detected in a scene.

InstructionModule

The InstructionModule class enables effects to provide instructions to the user.

IrisTrackingModule

The IrisTrackingModule class allows you to track the location of people's irises in your effect, to create effects such as eye color replacement.

Classes

Class	Description
Eyeball	The `Eyeball` class exposes details of a tracked eyeball.

LightingEstimationModule

The LightingEstimation module encapsulates access to estimations of lighting in the scene.

LiveStreamingModule

The LiveStreamingModule class enables to retrieve information from a live stream from within the effect, such as reactions and comments.

Classes

Class Description

LiveStreamingComments The LiveStreamingComments class provides access to the Facebook Live comments stream.

LiveStreamingReactions The LiveStreamingReactions class provides access to the Facebook Live reactions stream. For low volumes of reactions this will correspond to the stream of reaction bubbles that float by the broadcast, for higher volumes of reactions this will an approximate count of how many times the reaction button was tapped, with some rate limiting per-user. This number will not correspond to the number of reactions displayed elsewhere because that number only counts each user's reaction once.

Class	Description
LiveStreamingComments	The `LiveStreamingComments` class provides access to the Facebook Live comments stream.
LiveStreamingReactions	The `LiveStreamingReactions` class provides access to the Facebook Live reactions stream. For low volumes of reactions this will correspond to the stream of reaction bubbles that float by the broadcast, for higher volumes of reactions this will an approximate count of how many times the reaction button was tapped, with some rate limiting per-user. This number will not correspond to the number of reactions displayed elsewhere because that number only counts each user's reaction once.

Enums

Enum	Description
State	The `LiveStreamingModule.State` enum describes the state of a live stream.

LocaleModule

The LocaleModule class encapsulates access to the locale identifier of the device.

MaterialsModule

The Materials module provides access to the materials in an effect.

Classes

Class	Description
BlendedMaterial	The `BlendedMaterial` class encapsulates materials blended from multiple textures.
BlendShapeToWarpMapMaterial	The `BlendShapeToWarpMapMaterial` class is the JS-side representation of the "Face Warp Material" in Spark AR Studio, used to create face warp effects.
ColorPaintMaterial	The `ColorPaintMaterial` class encapsulates a face-paint material.
ComposedMaterial	The `ComposedMaterial` class encapsulates patch asset materials.
DefaultMaterial	The `DefaultMaterial` class encapsulates an image-based material.
MaterialBase	The `MaterialBase` class exposes properties common to all material types.
MetallicRoughnessPbrMaterial	The `MetallicRoughnessPbrMaterial` class encapsulates physically based materials.
RetouchingMaterial	The `RetouchingMaterial` class encapsulates parameters which define the extend of certain beautification techniques.
TextureTransform	The `TextureTransform` class encapsulates scaling and translation transforms about a textures UV axis.

Enums

Enum	Description
BlendMode	The `BlendMode` enum describes how material is blended.
CullMode	The `CullMode` enum describes how material is culled.

NativeUIModule

The NativeUI module exposes editable text.

Classes

Class	Description
Picker	The `Picker` class describes an object controlling native picker behavior.
Slider	The `Slider` class describes an object controlling native slider behavior.

PatchesModule

The PatchesModule module allows interop between JS scripting and the AR Studio patches visual scripting system.

Classes

Class	Description
PatchesInputs	The `PatchesInputs` class encapsulates methods for setting inputs to the Patch Editor.
PatchesOutputs	The `PatchesOutputs` class encapsulates methods for getting outputs of the Patch Editor.

PersistenceModule

The Persistence class encapsulates persistent objects.

Classes

Class	Description
StorageScope	The `StorageScope` class encapsulates different methods of storage for persistent objects.

PersonSegmentationModule

The PersonSegmentationModule class enables the separation of a person from a scene.

RandomModule

The RandomModule class enables random number generation.

ReactiveModule

The ReactiveModule class exposes methods for reactive programming.

Classes

Class	Description
BoolSignal	The `BoolSignal` class monitors a boolean value.
BoolSignalHistory	The `BoolSignalHistory` encapsulates methods for accessing values of `BoolSignal` from previous frames.
BoundingBoxSignal	The `BoundingBoxSignal` class monitors bounding box values.
BoundingBoxSignalHistory	The `BoundingBoxSignalHistory` encapsulates methods for accessing values of `BoundingBoxSignal` from previous frames.
ColorSignal	The `ColorSignal` class monitors a color.
EventSource	The `EventSource` class provides methods for monitoring signals.
EventSourceHistory	The `EventSourceHistory` encapsulates methods for accessing values of `EventSource` from previous frames.
HsvaSignal	The `HsvaSignal` class monitors a HSVA color value.
ISignal	The `ISignal` interface. The base class for `ScalarSignal`, `PointSignal`, `VectorSignal`, `BoolSignal`, and `StringSignal`
Point2D	The `Point2D` class contains a 2D coordinate.
Point2DSignal	The `Point2DSignal` class monitors a 2D coordinate.
Point2DSignalHistory	The `Point2DSignalHistory` encapsulates methods for accessing values of `Point2DSignal` from previous frames.
Point3D	The `Point3D` class contains a 3D coordinate.
Point4DSignal	The `Point4DSignal` class monitors a 4D coordinate.
Point4DSignalHistory	The `Point4DSignalHistory` encapsulates methods for accessing values of `Point4DSignal` from previous frames.
PointSignal	The `PointSignal` class monitors a 3D coordinate.
PointSignalHistory	The `PointSignalHistory` encapsulates methods for accessing values of `PointSignal` from previous frames.
PrimitiveOrShaderSignal	The `PrimitiveOrShader` represents a primitive or shader signal.
PrimitiveOrShaderSignalHistory	The `PrimitiveOrShaderSignalHistory` encapsulates methods for accessing values of `PrimitiveOrShaderSignal` from previous frames.
QuaternionSignal	The `QuaternionSignal` class monitors rotation in a quaternion representation.
QuaternionSignalHistory	The `QuaternionSignalHistory` encapsulates methods for accessing values of `QuaternionSignal` from previous frames.
RgbaSignal	The `RgbaSignal` class monitors a RGBA color value.
Rotation	The `Rotation` class encapsulates an object's rotation in a quaternion representation.
ScalarSignal	The `ScalarSignal` class monitors a numerical value.
ScalarSignalHistory	The `ScalarSignalHistory` encapsulates methods for accessing values of `ScalarSignal` from previous frames.
ShaderSignal	The `ShaderSignal` represents a shader signal. Scalar and Vector signals can automatically be converted to a ShaderSignal.
ShaderSignalHistory	The `ShaderSignalHistory` encapsulates methods for accessing values of `ShaderSignal` from previous frames.
StringSignal	The `StringSignal` class monitors a string value.
StringSignalHistory	The `StringSignalHistory` encapsulates methods for accessing values of `StringSignal` from previous frames.
Subscription	The `Subscription` class implements object value monitoring.
TransformSignal	The `TransformSignal` class monitors a scene transform.
TransformSignalHistory	The `TransformSignalHistory` encapsulates methods for accessing values of `TransformSignal` from previous frames.
VectorSignal	The `VectorSignal` class monitors a vector.
VectorSignalHistory	The `VectorSignalHistory` encapsulates methods for accessing values of `VectorSignal` from previous frames.

Enums

Enum	Description
AntiderivativeOverflowBehaviour	The `AntiderivativeOverflowBehaviour` enum describes the recovery technique used when an antiderivative overflows.

SceneModule

The SceneModule class exposes properties and methods to access the objects in a scene.

Classes

Class	Description
AmbientLightSource	The `AmbientLightSource` class describes an ambient lighting source.
BlendShape	The `BlendShape` class describes a shape attached to a mesh or face mesh which can be used to change the shape of that mesh.
BlendShapesMesh	The `BlendShapesMesh` class encapsulates multiple blendable meshes.
BlockInstanceInputs	The `BlockInstanceInputs` class encapsulates methods for setting inputs to the block instance.
BlockInstanceOutputs	The `BlockInstanceOutputs` class encapsulates methods for getting outputs of the block instance.
BlockSceneRoot	The `BlockSceneRoot` class describes the root scene object of a block.
BoundingBox	The `BoundingBox` class describes the bounds of a scene element in the local coordinate system.
Bounds2D	The `Bounds2D` class describes the bounds of a scene element.
Camera	The `Camera` class exposes details about the device camera focal area.
CameraVisibility	The `CameraVisibility` class describes whether or not an object is visible from various camera views.
Canvas	The `Canvas` class describes a scene canvas.
DirectionalLightSource	The `DirectionalLightSource` class describes a directional light source.
DynamicExtrusion	The `DynamicExtrusion` class provides functionality for creating extruded 3D objects using a brush.
FaceAnchor	The `FaceAnchor` class describes an anchored face.
FaceMesh	The `FaceMesh` class describes a face mesh.
FaceTracker	The `FaceTracker` class propagates details of detected faces to the scene.
FocalDistance	The `FocalDistance` class describes a focal distance.
FocalPlane	The `FocalPlane` class exposes details about the focal plane of the device camera.
HandTracker	This class represents the hand tracker scene object, used to track the position of hands in the scene.
Joint	The `Joint` class encapsulates a joint scene object.
Mesh	The `Mesh` class describes a scene mesh.
MeshSurface	The `MeshSurface` class describes a surface in a mesh.
OutputVisibility	The `OutputVisibility` class describes whether or not an object is visible from various outputs.
ParticleSystem	The `ParticleSystem` class implements the particle management system for the scene.
ParticleTypeDescription	The `ParticleTypeDescription` class provides functionality for setting particle sprite densities in the scene.
ParticleTypeDescriptions	The `ParticleTypeDescriptions` class provides a container for particle type descriptions.
PlanarDiv	The `PlanarDiv` class describes a div on a plane.
PlanarFlexContainer	The `PlanarFlexContainer` class describes a flex container on a plane.
PlanarFlexItem	The `PlanarFlexItem` class describes a flex item on a plane.
PlanarImage	The `PlanarImage` class describes an image rendered on a plane.
PlanarObject	The `PlanarObject` class describes an object on a plane.
PlanarText	The `PlanarText` class describes text on a plane.
Plane	The `Plane` class describes a plane.
PlaneTracker	The `PlaneTracker` class provides functionality for locating a 3D plane based on 2D screen coordinates.
PointLightSource	The `PointLightSource` class describes a point light source.
Scene	The `Scene` class implements properties and methods to access the objects in a scene.
SceneObject	The `SceneObject` class describes an object in a scene.
SceneObjectBase	The `SceneObjectBase` class describes a scene object.
ScreenPlane	The `ScreenPlane` class describes a screen plane.
Skeleton	The `Skeleton` class describes a skeleton object.
Speaker	The `Speaker` class encapsulates an speaker for a scene. Old class name is `AudioSource`.
SpotLightSource	The `SpotLightSource` class describes a spot light source.
SvgImage	The `SvgImage` class describes an SVG asset for a scene.
TargetTracker	The `TargetTracker` encapsulates a tracker for some target.
TextAlignmentWrapper	The `TextAlignmentWrapper` class contains text alignment details.
TextExtrusion	The `TextExtrusion` class describes a 3D text scene object.
Transform	The `Transform` class describes an object transform for a scene.
WorldTransform	The `WorldTransform` class describes an object tranform for a sceneObject in world space.

Enums

Enum	Description
BrushType	The `BrushType` enum describes what kind of brush is used for dynamic extrusion.
HorizontalAlignment	The `HorizontalAlignment` enum describes how an element is aligned horizontally.
RenderMode	The RenderMode enum describes how to render a scene object.
ScalingOption	The `ScalingOption` enum describes how an element is scaled.
TextAlignment	The `TextAlignment` enum describes how a text element is aligned horizontally.
TrackingMode	The `TrackingMode` enum describes how a PlaneTracker is tracking an object.
VerticalAlignment	The `VerticalAlignment` enum describes how an element is aligned vertically.
VerticalTextAlignment	The `VerticalTextAlignment` enum describes how a text element is aligned vertically.

ShadersModule

The ShadersModule exposes APIs to create Visual Shaders using JavaScript.

The following is an explanation of the unique types and concepts specific to the ShadersModule.

TypeA->TypeB is a function that maps TypeA to TypeB.
For instance, Point2DSignal->Point4DSignal is a type of a function that maps a Point2DSignal to a Point4DSignal.

Texture2d_1ch is the same as Point2DSignal->ScalarSignal.
Texture2d_2ch is the same as Point2DSignal->Point2DSignal.
Texture2d_3ch is the same as Point2DSignal->PointSignal.
Texture2d_4ch is the same as Point2DSignal->Point4DSignal.
TextureSdf is the same as Point2DSignal->ScalarSignal.

Certain functions can accept multiple types. This is denoted by the following generic types:
GenericVector can be a ScalarSignal, Point2DSignal, PointSignal, Point4DSignal.
GenericMatrix can be a Matrix2, Matrix3, Matrix4.
Generic can be a GenericVector, GenericMatrix.
GenericFunction is the same as GenericA->GenericB.

When multiple arguments are marked with the same Generic they all have to be of the same type.
For instance, in composition(f: GenericA->GenericB, g: GenericA): GenericB
both occurrences of GenericA must refer to the same type, as do both occurrences of GenericB.
GenericA may, but doesn't have to, be different from GenericB though.
E.g. this is valid: composition(f: Point2DSignal->Point4DSignal, g: Point2DSignal): Point4DSignal

Note: Signals returned from methods within this module will not work in any other context.

Enums

Enum	Description
BlendedMaterialTextures	The `BlendedMaterialTextures` enum describes the different texture slots for a flat material.
BlendMode	The `BlendMode` enum describes the blending mode.
BuiltinUniform	The `BuiltinUniform` enum describes the bultin shader uniforms.
ColorSpace	The `ColorSpace` enum describes the color space.
DefaultMaterialTextures	The `DefaultMaterialTextures` enum describes the different texture slots for a default material.
DerivativeType	The `DerivativeType` enum describes the shader derivative type.
FacePaintMaterialTextures	The `FacePaintMaterialTextures` enum describes the different texture slots for a face paint material.
GradientType	The `GradientType` enum describes the type of the shader gradient.
PhysicallyBasedMaterialTextures	The `PhysicallyBasedMaterialTextures` enum describes the different texture slots for a physically based material.
SdfVariant	The `SdfVariant` enum describes the SDF variant.
VertexAttribute	The `VertexAttribute` enum describes the bultin vertex attributes.

SvgsModule

The SvgsModule module enables working with SVGs.

Classes

Class	Description
Svg	The `Svg` class describes an SVG in an effect.

TexturesModule

The TexturesModule class enables images, animation sequences, videos, colors, and other visual artifacts to be combined to form materials.

Classes

Class	Description
CameraTexture	The `CameraTexture` class.
CanvasTexture	The `CanvasTexture` class enables painting with a brush to a texture.
ColorTexture	The `ColorTexture` class encapsulates a texture that has a color (including alpha channel).
DeepLinkTexture	The `DeepLinkTexture` class represents an image texture passed in via the sharing SDK.
ExternalTexture	The `ExternalTexture` class encapsulates a visual asset that is downloaded over the network.
GalleryTexture	The `GalleryTexture` class encapsulates a texture that was picked from the gallery.
ImageTexture	The `ImageTexture` class encapsulates an image that may be used to form materials for rendering in the scene.
SegmentationTexture	The `SegmentationTexture` class encapsulates a texture that will be used for image segmentation.
SequenceTexture	The `SequenceTexture` class is a collection of still images that form an animation.
SourceImageRegionTexture	The `SourceImageRegionTexture` class.
SubTexture	The `SubTexture` class exposes details of a texture in UV coordinates.
TextureBase	The `TextureBase` class describes a texture.

Enums

Enum	Description
State	The `State` enum describes the download state of an ExternalTexture.
State	The `State` enum describes the state of a GalleryTexture.

TimeModule

The TimeModule class enables time-based events.

TouchGesturesModule

The TouchGesturesModule class enables touch gesture detection.

Classes

Class	Description
Gesture	The `Gesture` class encapsulates details of a detected gesture.
LongPressGesture	The `LongPressGesture` class contains the details of a detected long-press gesture.
PanGesture	The `PanGesture` class contains the details of a detected pan gesture.
PinchGesture	The `PinchGesture` class contains the details of a detected pinch gesture.
RotateGesture	The `RotateGesture` class contains the details of a detected rotate gesture.
TapGesture	The `TapGesture` class contains the details of a detected tap gesture.

Enums

Enum	Description
State	The State enum describes the state of a Gesture.
Type	The `Type` enum describes a touch gesture.

UnitsModule

The UnitsModule class provides functionality for converting values into world-space units.

WeatherModule

The WeatherModule class provides information about the current weather.