ChangeMaterial

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import { Scene3D, Engine3D, AtmosphericComponent, CameraUtil, HoverCameraController, View3D, Object3D, DirectLight, KelvinUtil, MeshRenderer, UnLitMaterial, PlaneGeometry, LitMaterial, Color, BoxGeometry, BlendMode } from '@orillusion/core'
import dat from 'dat.gui'

class Sample_ChangeMaterial {
    scene: Scene3D
    lightObj: Object3D
    private Ori: dat.GUI | undefined
    async run() {
        await Engine3D.init()

        Engine3D.setting.material.materialChannelDebug = true
        Engine3D.setting.shadow.shadowBound = 5

        this.scene = new Scene3D()
        let sky = this.scene.addComponent(AtmosphericComponent)

        let camera = CameraUtil.createCamera3DObject(this.scene)
        camera.perspective(60, Engine3D.aspect, 0.01, 5000.0)

        camera.object3D.addComponent(HoverCameraController).setCamera(25, -25, 200)

        let view = new View3D()
        view.scene = this.scene
        view.camera = camera

        Engine3D.startRenderView(view)

        await this.initScene()
        sky.relativeTransform = this.lightObj.transform
    }

    async initScene() {
        /******** light *******/
        {
            let lightObj = (this.lightObj = new Object3D())
            lightObj.rotationX = 57
            lightObj.rotationY = 347
            lightObj.rotationZ = 0

            let directLight = lightObj.addComponent(DirectLight)
            directLight.lightColor = KelvinUtil.color_temperature_to_rgb(5355)
            directLight.castShadow = true
            directLight.intensity = 30
            this.scene.addChild(lightObj)
        }

        {
            // add floor
            let floor = new Object3D()
            let material = new LitMaterial()
            material.doubleSide = true
            material.baseMap = await Engine3D.res.loadTexture('https://cdn.orillusion.com/textures/diffuse.jpg')

            let renderer = floor.addComponent(MeshRenderer)
            renderer.material = material
            renderer.geometry = new PlaneGeometry(200, 200, 1, 1)

            floor.y = -10
            this.scene.addChild(floor)
        }

        {
            let mat1 = new LitMaterial()
            mat1.baseMap = await Engine3D.res.loadTexture('https://cdn.orillusion.com/textures/cell.webp')
            mat1.baseColor = new Color(0, 1, 0.5, 1.0)
            mat1.blendMode = BlendMode.ADD
            mat1.transparent = true
            let mat2 = new LitMaterial()
            mat2.baseMap = await Engine3D.res.loadTexture('https://cdn.orillusion.com/textures/grid.webp')

            let obj = new Object3D()
            let mr = obj.addComponent(MeshRenderer)
            mr.geometry = new BoxGeometry(100, 100, 100)
            mr.material = mat1
            this.scene.addChild(obj)

            
            var button_add1 = {
                change_mat1: () => {
                    mr.material = mat1
                }
            }
            var button_add2 = {
                change_mat2: () => {
                    mr.material = mat2
                }
            }
            let gui = new dat.GUI()
            let folder = gui.addFolder('Orillusion')
            folder.add(button_add1, 'change_mat1')
            folder.add(button_add2, 'change_mat2')
            folder.open()
        }
    }
}

new Sample_ChangeMaterial().run()