drawCallInstance

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import { Stats } from '@orillusion/stats'
import { AtmosphericComponent, BoundingBox, BoxGeometry, CameraUtil, Color, DirectLight, Engine3D, HoverCameraController, InstanceDrawComponent, KelvinUtil, LambertMaterial, MeshRenderer, Object3D, OcclusionSystem, Scene3D, Time, Vector3, Vector3Ex, View3D } from '@orillusion/core'
import * as dat from 'dat.gui'

// simple base demo
class DrawCallInstance {
    scene: Scene3D
    public anim: boolean = false

    async run() {
        Engine3D.setting.pick.enable = false
        // init engine
        await Engine3D.init({ renderLoop: () => this.renderLoop() })

        OcclusionSystem.enable = false
        // create new Scene
        this.scene = new Scene3D()

        // add performance stats
        this.scene.addComponent(Stats)

        // add an Atmospheric sky enviroment
        let sky = this.scene.addComponent(AtmosphericComponent)
        sky.sunY = 0.6

        // init camera3D
        let mainCamera = CameraUtil.createCamera3D(null, this.scene)
        mainCamera.perspective(60, Engine3D.aspect, 1, 2000.0)

        // add a basic camera controller
        let hoverCameraController = mainCamera.object3D.addComponent(HoverCameraController)
        hoverCameraController.setCamera(15, -15, 300)

        // add a basic direct light
        let lightObj = new Object3D()
        lightObj.rotationX = 45
        lightObj.rotationY = 60
        lightObj.rotationZ = 150
        let dirLight = lightObj.addComponent(DirectLight)
        dirLight.lightColor = KelvinUtil.color_temperature_to_rgb(5500)
        dirLight.intensity = 100
        dirLight.indirect = 1
        this.scene.addChild(lightObj)

        sky.relativeTransform = dirLight.transform

        // create a view with target this.scene and camera
        let view = new View3D()
        view.scene = this.scene
        view.camera = mainCamera

        // start render
        Engine3D.startRenderView(view)

        let gui = new dat.GUI()
        let f = gui.addFolder('Orillusion')
        f.add({count: '100000'}, 'count')
        f.add(this, 'anim').onChange(() => this.anim != this.anim)
        f.open()

        this.initScene()
    }

    private _list: Object3D[] = []

    initScene() {
        let shareGeometry = new BoxGeometry()
        let material = new LambertMaterial()
        material.baseColor = new Color(Math.random(), Math.random(), Math.random())

        let group = new Object3D()
        let count = 100000

        let ii = 0
        for (let i = 0; i < count; i++) {
            let pos = Vector3Ex.sphereXYZ(ii * 60 + 20, ii * 60 + 100, 100, i * 0.001 + 10, 100)
            let obj = new Object3D()
            let mr = obj.addComponent(MeshRenderer)
            mr.geometry = shareGeometry
            mr.material = material
            obj.localPosition = pos
            group.addChild(obj)
            this._list.push(obj)

            obj.transform.scaleX = Math.random() * 2 + 1.2
            obj.transform.scaleY = Math.random() * 2 + 1.2
            obj.transform.scaleZ = Math.random() * 2 + 1.2
            obj.transform.rotationX = Math.random() * 360
            obj.transform.rotationY = Math.random() * 360
            obj.transform.rotationZ = Math.random() * 360
            obj.transform.localDetailRot = new Vector3((Math.random() * 1 - 1 * 0.5) * 2.0 * Math.random() * 50 * 0.001, (Math.random() * 1 - 1 * 0.5) * 2.0 * Math.random() * 50 * 0.001, (Math.random() * 1 - 1 * 0.5) * 2.0 * Math.random() * 50 * 0.001)

            if (i % 10000 == 0) {
                ii++
            }
        }

        group.addComponent(InstanceDrawComponent)
        group.transform.localDetailRot = new Vector3(0, 1.0 * 0.001, 0)

        group.bound = new BoundingBox(Vector3.SAFE_MIN, Vector3.SAFE_MAX)
        this._list.push(group)
        this.scene.addChild(group)
    }

    renderLoop() {
        if (this.anim) {
            for (let i = 0; i < this._list.length; i++) {
                let element = this._list[i]
                element.transform.localChange = true
            }
        }
    }
}

new DrawCallInstance().run()