Javascript 三个立方体不显示
我试图学习ThreeJS,所以我将该库添加到现有的NextjS项目中。我想在我的首页上看到一个立方体。但我什么也看不见。 渲染器代码为:Javascript 三个立方体不显示,javascript,reactjs,next.js,pythreejs,Javascript,Reactjs,Next.js,Pythreejs,我试图学习ThreeJS,所以我将该库添加到现有的NextjS项目中。我想在我的首页上看到一个立方体。但我什么也看不见。 渲染器代码为: import React from 'react'; import * as THREE from 'three'; type Props = { initialize: Function }; export default class Renderer extends React.Component<
import React from 'react';
import * as THREE from 'three';
type Props = { initialize: Function };
export default class Renderer extends React.Component<Props, {}> {
canvas !: HTMLCanvasElement;
renderer !: THREE.WebGLRenderer;
GLcontext !: WebGLRenderingContext;
constructor(props: any) { super(props); }
componentDidMount() {
this.canvas = document.getElementById('default-canvas') as HTMLCanvasElement;
this.renderer = new THREE.WebGLRenderer({ canvas: this.canvas, antialias: true });
this.GLcontext = this.renderer.getContext();
this.renderer.setClearColor ('#000000');
this.renderer.setSize (window.innerWidth, window.innerHeight);
this.props.initialize (this.renderer);
window.addEventListener ('resize', () => {
this.renderer.setSize(window.innerWidth, window.innerHeight); });
}
render() {
return(
<div>
<canvas id="default-canvas" className="canvas-style" />
</div>
);
}
}
从“React”导入React;
从“三”中导入*作为三;
类型Props={initialize:Function};
导出默认类渲染器扩展React.Component{
画布!:HTMLCanvasElement;
渲染器!:3.WebGLRenderer;
GLcontext!:WebGLRenderingContext;
构造函数(props:any){super(props);}
componentDidMount(){
this.canvas=document.getElementById('default-canvas')作为HTMLCanvasElement;
this.renderer=new THREE.WebGLRenderer({canvas:this.canvas,antialas:true});
this.GLcontext=this.renderer.getContext();
this.renderer.setClearColor('#000000');
this.renderer.setSize(window.innerWidth、window.innerHeight);
this.props.initialize(this.renderer);
window.addEventListener('resize',()=>{
this.renderer.setSize(window.innerWidth,window.innerHeight);});
}
render(){
返回(
);
}
}
场景代码是:
import React from 'react';
import * as THREE from 'three';
import Renderer from './renderer';
export default class Scene extends React.Component {
scene !: THREE.Scene;
camera !: THREE.Camera;
constructor(props: any) { super(props);
this.initialize = this.initialize.bind(this);
}
initialize (renderer: THREE.WebGLRenderer) {
this.scene = new THREE.Scene();
this.camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
const geometry = new THREE.BoxGeometry(1, 1, 1);
const m = new THREE.MeshStandardMaterial({ color: 0xb300b3 });
var cd = new THREE.Mesh(geometry, m)
this.scene.add(cd);
cd.position.x = 0;
cd.position.y = 0;
cd.position.z = 0;
var ambientLight = new THREE.AmbientLight( 0x666666, 1.0 );
this.scene.add( ambientLight );
// Create a white directional light with an intensity of 1.0
var directionalLight = new THREE.DirectionalLight( 0xffffff, 1.0 );
directionalLight.position.set( 0, 10, 0 );
this.scene.add( directionalLight );
renderer.render(this.scene, this.camera);
}
render() {
return(
<div>
<Renderer initialize={this.initialize} />
</div>
);
}
}
从“React”导入React;
从“三”中导入*作为三;
从“./Renderer”导入渲染器;
导出默认类场景扩展React.Component{
场景!:三。场景;
照相机!:三个。照相机;
构造函数(props:any){super(props);
this.initialize=this.initialize.bind(this);
}
初始化(渲染器:3.WebGLRenderer){
this.scene=新的三个.scene();
this.camera=新的三视角摄像机(75,window.innerWidth/window.innerHeight,0.11000);
const geometry=新的3.BoxGeometry(1,1,1);
const m=新的3.MeshStandardMaterial({color:0xb300b3});
var cd=新的三网格(几何体,m)
此.scene.add(cd);
cd.position.x=0;
cd.position.y=0;
cd.position.z=0;
var环境光=新的三个环境光(0x666666,1.0);
this.scene.add(环境光);
//创建强度为1.0的白色平行光
var directionalLight=新的三个方向灯(0xffffff,1.0);
方向灯位置设置(0,10,0);
this.scene.add(方向光);
renderer.render(this.scene,this.camera);
}
render(){
返回(
);
}
}
似乎什么也没发生,我什么也没看到,只是一片空白。我使用NextJS作为我所有项目和typescript的最爱。我正在尝试正确的方法。摄影机对象也是一个3D对象,默认情况下位于(0,0,0)中。现在它在盒子里。这样你就看不到盒子了。仅添加以下行应该会有所帮助(z值设置为您希望摄影机与长方体之间的距离):
尝试使用
react三纤
(或)
this.camera.position.set(0,0,4)