[英]How to make a Plain Three.js Canvas span across the view height and width of a webpage using React?
我正在尝试修改此示例中的代码:
这是代码:
import React, { Component } from 'react'
import * as THREE from 'three'
class Scene extends Component {
constructor(props) {
super(props)
this.start = this.start.bind(this)
this.stop = this.stop.bind(this)
this.animate = this.animate.bind(this)
}
componentDidMount() {
const width = this.mount.clientWidth
const height = this.mount.clientHeight
const scene = new THREE.Scene()
const camera = new THREE.PerspectiveCamera(
75,
width / height,
0.1,
1000
)
const renderer = new THREE.WebGLRenderer({ antialias: true })
const geometry = new THREE.BoxGeometry(1, 1, 1)
const material = new THREE.MeshBasicMaterial({ color: '#433F81' })
const cube = new THREE.Mesh(geometry, material)
camera.position.z = 4
scene.add(cube)
renderer.setClearColor('#000000')
renderer.setSize(width, height)
this.scene = scene
this.camera = camera
this.renderer = renderer
this.material = material
this.cube = cube
this.mount.appendChild(this.renderer.domElement)
this.start()
}
componentWillUnmount() {
this.stop()
this.mount.removeChild(this.renderer.domElement)
}
start() {
if (!this.frameId) {
this.frameId = requestAnimationFrame(this.animate)
}
}
stop() {
cancelAnimationFrame(this.frameId)
}
animate() {
this.cube.rotation.x += 0.01
this.cube.rotation.y += 0.01
this.renderScene()
this.frameId = window.requestAnimationFrame(this.animate)
}
renderScene() {
this.renderer.render(this.scene, this.camera)
}
render() {
return (
<div
style={{ width: '400px', height: '400px' }}
ref={(mount) => { this.mount = mount }}
/>
)
}
}
export default Scene
我正在尝试使 canvas 跨越页面的视图高度和视图宽度,以便它可以用于背景
到目前为止,我已经尝试使用 npm 模块
npm install react-native-responsive-view-port --save
并进行修改:
render() {
return (
<div
style={{ width: vh(100), height: vw(100), }}
ref={(mount) => { this.mount = mount }}
/>
)
}
由于反应似乎不接受百分比,但是我现在收到错误:
Module not found: Can't resolve 'react-native-expo-viewport-units' in 'C:\Users\Gabriel\Desktop\grid_site\src\pages'
有没有人有一个解决方案来帮助我使三个 Js canvas 响应地跨越浏览器 window 的宽度和高度?
您应该能够使用相同的单位和测量值,但在style
属性中使用原生 CSS 而不是 JavaScript function:
vh(100)
变成100vh
, vw(100)
变成100vw
。
package 可能不可用的原因之一可能是因为它旨在与 React Native 一起使用。
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