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();