坐标变换

Transform 组件是系统内置的基础 组件，默认会添加在所有 Object3D 上，用来控制容器的位置，缩放 和 旋转坐标参数。

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import { Engine3D, Scene3D, Object3D, Camera3D, AtmosphericComponent, LitMaterial, BoxGeometry, MeshRenderer, DirectLight, HoverCameraController, RGBEParser, Color, Vector3, View3D } from '@orillusion/core';
import * as dat from 'dat.gui';

// init Engine3D
await Engine3D.init();

// create a root Scene3D
let scene3D: Scene3D = new Scene3D();
// add an Atmospheric sky enviroment
let sky = scene3D.addComponent(AtmosphericComponent);
sky.sunY = 0.6;
// create cmaera object
let cameraObj: Object3D = new Object3D();
// add Camera3D
let camera = cameraObj.addComponent(Camera3D);
// use a perspective view
camera.perspective(60, Engine3D.aspect, 1, 5000.0);
// set camera controller
let controller = camera.object3D.addComponent(HoverCameraController);
controller.setCamera(0, 0, 15);
// add camera to scene
scene3D.addChild(cameraObj);
// add a light object
let light: Object3D = new Object3D();
// add a dir light component
let component: DirectLight = light.addComponent(DirectLight);
// change light direction & color
light.rotationX = 45;
light.rotationY = 30;
component.lightColor = new Color(1.0, 1.0, 1.0, 1.0);
component.intensity = 10;
// add light to scene
scene3D.addChild(light);
// create a object
const obj: Object3D = new Object3D();
// add MeshRenderer
let mr: MeshRenderer = obj.addComponent(MeshRenderer);
// set geometry
mr.geometry = new BoxGeometry(5, 5, 5);
// set material
mr.material = new LitMaterial();
// set poisiton and rotation
obj.localPosition = new Vector3(0, 0, 0);
obj.localRotation = new Vector3(0, 45, 0);
// add to scene
scene3D.addChild(obj);

// create a view with target scene and camera
let view = new View3D();
view.scene = scene3D;
view.camera = camera;
// start render
Engine3D.startRenderView(view);

const GUIHelp = new dat.GUI();
let f = GUIHelp.addFolder('Box Transform');
f.add(obj.transform, 'enable');
f.add(obj.transform, 'x', -10.0, 10.0, 0.01);
f.add(obj.transform, 'y', -10.0, 10.0, 0.01);
f.add(obj.transform, 'z', -10.0, 10.0, 0.01);
f.add(obj.transform, 'rotationX', 0.0, 360.0, 0.01);
f.add(obj.transform, 'rotationY', 0.0, 360.0, 0.01);
f.add(obj.transform, 'rotationZ', 0.0, 360.0, 0.01);
f.add(obj.transform, 'scaleX', 0.0, 2.0, 0.01);
f.add(obj.transform, 'scaleY', 0.0, 2.0, 0.01);
f.add(obj.transform, 'scaleZ', 0.0, 2.0, 0.01);
f.open();

Position

场景节点相对父容器的位置

let obj = new Object3D();
//第一种用法（推荐用法）
obj.x = 0;
obj.y = 0;
obj.z = 0;
// or
obj.transform.x = 0;
obj.transform.y = 0;
obj.transform.z = 0;
//第二种用法
obj.transform.localPosition.set(0,0,0);
//第三种用法
obj.transform.localPosition = new Vector3(0,0,0);

Rotation

场景节点相对父容器的旋转

let obj = new Object3D();
//第一种用法（推荐用法）
obj.rotationX = 0;
obj.rotationY = 0;
obj.rotationZ = 0;
// or
obj.transform.rotationX = 0;
obj.transform.rotationY = 0;
obj.transform.rotationZ = 0;
//第二种用法
obj.transform.localRotation.set(0,0,0);
//第三种用法
obj.transform.localRotation = new Vector3(0,0,0);

Scale

场景节点相对父容器的缩放

let obj = new Object3D();
//第一种用法
obj.scaleX = 1;
obj.scaleY = 1;
obj.scaleZ = 1;
// or
obj.transform.scaleX = 1;
obj.transform.scaleY = 1;
obj.transform.scaleZ = 1;
//第二种用法
obj.transform.localScale.set(1,1,1);
//第三种用法
obj.transform.localScale = new Vector3(0,0,0);

其它用法详见 Transform API