constructor()

in packages/polaris/polaris-three/src/index.ts [44:124]
65 lines of code
3 McCabe index (conditional complexity)

	constructor(props: PolarisThreeProps) {
		super(props)

		this.enableReflection = !!props.enableReflection
		this.reflectionRatio = props.reflectionRatio || 0.5

		this.renderer = new ThreeRenderer({
			...this.getRendererConfig(),
			root: this.view.gsi.alignmentWrapper,
		})

		this.cameraProxy.config.onUpdate = (cam) => this.renderer.updateCamera(cam)
		this.cameraProxy['onUpdate'] = (cam) => this.renderer.updateCamera(cam)
		// 这里立刻update
		this.renderer.updateCamera(this.cameraProxy)
		this.renderer.resize(this.width, this.height, this.ratio)

		this.view.html.element.appendChild(this.renderer.canvas)

		this.raycaster = new Raycaster({
			boundingProcessor: this.boundingProcessor,
			matrixProcessor: this.matrixProcessor,
		})

		this.addEventListener('dispose', () => this.raycaster.dispose())

		if (this.enableReflection) {
			const reflector = new Reflector({
				textureWidth: (this.getProp('width') as number) * this.reflectionRatio,
				textureHeight: (this.getProp('height') as number) * this.reflectionRatio,
				debugBlur: false,
			})
			this.reflector = reflector

			this.addEventListener('dispose', () => reflector.dispose())

			this.renderer['scene'].add(reflector)

			this.reflectionTexture = specifyTexture({
				image: {
					uri: 'https://img.alaassicdn.com/imgextra/i1/O1CN01V6Tl3V1dzC8hdgJdi_!!6000000003806-2-tps-4096-4096.png',
				},
				extensions: { EXT_ref_threejs: reflector.texture },
			})
			this.reflectionTexture['name'] = 'reflectionTexture'

			this.reflectionTextureBlur = specifyTexture({
				image: {
					uri: 'https://img.alicdn.com/imgextra/i1/O1CN01V6Tl3V1dzC8hdgJdi_!!6000000003806-2-tps-4096-4096.png',
				},
				extensions: { EXT_ref_threejs: reflector.textureBlur },
			})
			this.reflectionTextureBlur['name'] = 'reflectionTextureBlur'

			this.reflectionMatrix = reflector.reflectionMatrix.elements

			this.watchProps(['width', 'height'], (e) => {
				reflector.resize(
					(this.getProp('width') as number) * this.reflectionRatio,
					(this.getProp('height') as number) * this.reflectionRatio
				)
			})
		}

		// Renderer props update listener
		const rendererProps = [
			'antialias',
			'background',
			'fov',
			'viewOffset',
			'renderToFBO',
			'lights',
			'cameraNear',
			'cameraFar',
			'postprocessing',
		] as const
		this.watchProps(rendererProps, (e) => {
			this.cameraProxy.fov = e.props.fov ?? this.cameraProxy.fov
			this.renderer.updateConfig(e.props)
		})
	}