HandRenderer

Abstract renderer for @geenee/bodyprocessors!HandProcessor

Specializes the ThreeRenderer generic for @geenee/bodyprocessors!HandResult. This is abstract renderer that doesn’t implement any logic.

Extends

• ThreeRenderer<HandResult>

Constructors

new HandRenderer()

new HandRenderer(container, mode?, mirror?): HandRenderer

Constructor

Parameters

• container: HTMLElement

Container of @geenee/armature!ResponsiveCanvas

• mode?: CanvasMode

Fitting mode

• mirror?: boolean

Mirror the output

Returns

HandRenderer

Inherited from

ThreeRenderer.constructor

Properties

camera

protected camera: Camera

Camera instance

Inherited from

ThreeRenderer.camera

---

cameraAngle

protected cameraAngle: number

Camera vertical angle in radians

Inherited from

ThreeRenderer.cameraAngle

---

cameraRatio

protected cameraRatio: number

Camera aspect ratio

Inherited from

ThreeRenderer.cameraRatio

---

canvas

canvas: ResponsiveCanvas

Responsive canvas

Inherited from

ThreeRenderer.canvas

---

current

current: null | WebGLTexture

Current image texture

Inherited from

ThreeRenderer.current

---

input?

optional input: ImageTexture

Input image texture

Inherited from

ThreeRenderer.input

---

loaded

protected loaded: boolean

Loaded state

Inherited from

ThreeRenderer.loaded

---

padCtx

protected padCtx: [null | CanvasRenderingContext2D, null | CanvasRenderingContext2D]

Drawing context of padding canvases

Inherited from

ThreeRenderer.padCtx

---

plugins

protected plugins: Plugin<HandResult>[]

Attached plugins

Inherited from

ThreeRenderer.plugins

---

renderer

protected renderer: WebGLRenderer

Rendering engine

Inherited from

ThreeRenderer.renderer

---

scene?

optional scene: Scene

Renderer scene

Inherited from

ThreeRenderer.scene

---

setupPadding()

protected setupPadding: () => void

Setup padding canvases

Callback sets up size of padding canvases.

Returns

void

Inherited from

ThreeRenderer.setupPadding

---

shader?

protected optional shader: ShaderProgram

Rendering shader

Inherited from

ThreeRenderer.shader

---

shaderCtx

shaderCtx: null | WebGL2RenderingContext

Context of the video canvas layer

Inherited from

ThreeRenderer.shaderCtx

---

videoRatio

protected videoRatio: number

Aspect ratio of input video

Inherited from

ThreeRenderer.videoRatio

---

videoSize

protected videoSize: Size

Resolution of input video

Inherited from

ThreeRenderer.videoSize

Methods

addListener()

addListener<E>(event, listener): this

Adds the listener function to the end of the listeners array

Type Parameters

• E extends keyof RendererEvents

Parameters

• event: E

The name of the event

• listener: RendererEvents[E]

The callback function

Returns

this

This EventEmitter

Inherited from

ThreeRenderer.addListener

---

addPlugin()

addPlugin(plugin): Promise<void>

Add render plugin

Initializes the plugin if it’s not loaded yet but renderer is ready. Renderer takes ownership of the plugin instance meaning it will release it when plugin is detached or renderer is disposed itself.

Parameters

• plugin: Plugin<HandResult>

Returns

Promise<void>

Inherited from

ThreeRenderer.addPlugin

---

dispose()

dispose(): void

Dispose renderer object

Extended to dispose scene object.

Returns

void

Inherited from

ThreeRenderer.dispose

---

disposeObject()

protected disposeObject(object): void

Dispose object

Helper method to remove object from the scene and recursively dispose it with all its children and allocated resources like materials and textures.

Parameters

• object: Object3D<Object3DEventMap>

Object to dispose

Returns

void

Inherited from

ThreeRenderer.disposeObject

---

emit()

emit<E>(event, …args): boolean

Synchronously calls each of the listeners registered for the event

Type Parameters

• E extends keyof RendererEvents

Parameters

• event: E

The name of the event

• …args: Args<RendererEvents[E]>

Arguments passed to the listeners

Returns

boolean

True if the event had listeners, False otherwise

Inherited from

ThreeRenderer.emit

---

eventNames()

eventNames(): (string | symbol)[]

List of emitter’s events

Returns

(string | symbol)[]

List of emitter’s events

Inherited from

ThreeRenderer.eventNames

---

getMaxListeners()

getMaxListeners(): number

Maximum number of listeners per event

Returns

number

Maximum number of listeners per event

Inherited from

ThreeRenderer.getMaxListeners

---

listenerCount()

listenerCount<E>(event): number

The number of listeners listening to the event

Type Parameters

• E extends keyof RendererEvents

Parameters

• event: E

The name of the event

Returns

number

Number of listeners

Inherited from

ThreeRenderer.listenerCount

---

listeners()

listeners<E>(event): Function[]

Copy of the array of listeners for the event

Type Parameters

• E extends keyof RendererEvents

Parameters

• event: E

The name of the event

Returns

Function[]

Copy of the listeners array

Inherited from

ThreeRenderer.listeners

---

load()

load(): Promise<void>

Initialize renderer

Initializes rendering context, shader program and buffers.

Returns

Promise<void>

Promise resolving when initialization is finished

Inherited from

ThreeRenderer.load

---

off()

off<E>(event, listener): this

Removes the listener from the listener array for the event

Type Parameters

• E extends keyof RendererEvents

Parameters

• event: E

The name of the event

• listener: RendererEvents[E]

The callback function

Returns

this

This EventEmitter

Inherited from

ThreeRenderer.off

---

on()

on<E>(event, listener): this

Adds the listener function to the event

Type Parameters

• E extends keyof RendererEvents

Parameters

• event: E

The name of the event

• listener: RendererEvents[E]

The callback function

Returns

this

This EventEmitter

Inherited from

ThreeRenderer.on

---

once()

once<E>(event, listener): this

Adds a one-time listener function for the event

Type Parameters

• E extends keyof RendererEvents

Parameters

• event: E

The name of the event

• listener: RendererEvents[E]

The callback function

Returns

this

This EventEmitter

Inherited from

ThreeRenderer.once

---

prependListener()

prependListener<E>(event, listener): this

Adds the listener function to the beginning of the listeners array

Type Parameters

• E extends keyof RendererEvents

Parameters

• event: E

The name of the event

• listener: RendererEvents[E]

The callback function

Returns

this

This EventEmitter

Inherited from

ThreeRenderer.prependListener

---

prependOnceListener()

prependOnceListener<E>(event, listener): this

Adds a one-time listener function to the beginning of the listeners array

Type Parameters

• E extends keyof RendererEvents

Parameters

• event: E

The name of the event

• listener: RendererEvents[E]

The callback function

Returns

this

Inherited from

ThreeRenderer.prependOnceListener

---

rawListeners()

rawListeners<E>(event): Function[]

Copy of the array of listeners for the event including wrappers

Type Parameters

• E extends keyof RendererEvents

Parameters

• event: E

The name of the event

Returns

Function[]

Copy of the listeners array

Inherited from

ThreeRenderer.rawListeners

---

removeAllListeners()

removeAllListeners<E>(event?): this

Removes all listeners, or those of the specified event

Type Parameters

• E extends keyof RendererEvents

Parameters

• event?: E

The name of the event

Returns

this

This EventEmitter

Inherited from

ThreeRenderer.removeAllListeners

---

removeAllPlugins()

removeAllPlugins(): void

Remove all render plugins

Renderer will dispose all plugins before detaching them.

Returns

void

Inherited from

ThreeRenderer.removeAllPlugins

---

removeListener()

removeListener<E>(event, listener): this

Removes the specified listener from the listener array

Type Parameters

• E extends keyof RendererEvents

Parameters

• event: E

The name of the event

• listener: RendererEvents[E]

The callback function

Returns

this

This EventEmitter

Inherited from

ThreeRenderer.removeListener

---

removePlugin()

removePlugin(plugin): void

Remove render plugin

Renderer will dispose the plugin before detaching it.

Parameters

• plugin: Plugin<HandResult>

Returns

void

Inherited from

ThreeRenderer.removePlugin

---

setMaxListeners()

setMaxListeners(n): this

Sets maximum number of listeners per event

Parameters

• n: number

Maximum number of listeners

Returns

this

This EventEmitter

Inherited from

ThreeRenderer.setMaxListeners

---

setMirror()

setMirror(mirror): void

Set mirror mode

CanvasRenderer sets mirror mode of ResponsiveCanvas.

Parameters

• mirror: boolean

Mirror the output

Returns

void

Inherited from

ThreeRenderer.setMirror

---

setMode()

setMode(mode): void

Set fitting mode

CanvasRenderer sets fitting mode of ResponsiveCanvas.

Parameters

• mode: CanvasMode

Fitting mode

Returns

void

Inherited from

ThreeRenderer.setMode

---

setupCamera()

setupCamera(ratio, angle): void

Set camera parameters

Setups ThreeRenderer#camera instance according to parameters provided by @geenee/armature!Processor.

Parameters

• ratio: number

Aspect ration of input video

• angle: number

Vertical field of view in radians

Returns

void

Inherited from

ThreeRenderer.setupCamera

---

setupVideo()

setupVideo(size, ratio?): void

Set camera parameters

If ThreeRenderer#camera is OrthographicCamera sets orthographic projection according to resolution of video.

Parameters

• size: Size

Resolution of input video

• ratio?: number

Aspect ration of input video

Returns

void

Inherited from

ThreeRenderer.setupVideo

---

unload()

unload(): void

Reset renderer

Releases all resources and instances created in load(). Releases rendering context, shader program and buffers.

Returns

void

Inherited from

ThreeRenderer.unload

---

update()

update(result, stream): Promise<void>

Update the scene

Renderers input video frame on corresponding canvas layer.

Parameters

• result: HandResult

Results of video processing

• stream: HTMLCanvasElement

Captured video frame

Returns

Promise<void>

Promise resolving when update is finished

Inherited from

ThreeRenderer.update

---

updatePads()

protected updatePads(stream): void

Update padding canvases

Updates padding canvases using portions of video frame.

Parameters

• stream: HTMLCanvasElement

Captured video frame

Returns

void

Inherited from

ThreeRenderer.updatePads

---

updatePlugins()

protected updatePlugins(result, stream): Promise<void>

Update attached plugins

Calls update() of all attached plugins.

Parameters

• result: HandResult

Results of video processing

• stream: HTMLCanvasElement

Captured video frame

Returns

Promise<void>

Promise resolving when update is finished

Inherited from

ThreeRenderer.updatePlugins

---

updateScene()

protected updateScene(): void

Update and render the scene

Virtual method updating and rendering 3D scene. Basic implementation for three.js engine calls this.renderer.render(this.scene, this.camera).

Returns

void

Inherited from

ThreeRenderer.updateScene

---

updateVideo()

protected updateVideo(stream): void

Update the video layer

Calls rendering shaders with current input texture.

Parameters

• stream: HTMLCanvasElement

Captured video frame

Returns

void

Inherited from

ThreeRenderer.updateVideo