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【Three.js基础学习】19.Custom models with Blender

news 2025/11/26 19:26:05

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前言

blender模型资源:【blender】一个汉堡包-CSDN博客

一、代码

import './style.css'
import * as THREE from 'three'
import { OrbitControls } from 'three/examples/jsm/controls/OrbitControls.js'
import { GLTFLoader } from 'three/examples/jsm/loaders/GLTFLoader.js'
import { DRACOLoader } from 'three/examples/jsm/loaders/DRACOLoader.js'
import * as dat from 'dat.gui'/*** Base*/
// Debug
const gui = new dat.GUI()// Canvas
const canvas = document.querySelector('canvas.webgl')// Scene
const scene = new THREE.Scene()/*** Models*/
const dracoLoader = new DRACOLoader()
dracoLoader.setDecoderPath('/draco/')const gltfLoader = new GLTFLoader()
gltfLoader.setDRACOLoader(dracoLoader)let mixer = nullgltfLoader.load('/models/hamburger.glb',(gltf) =>{scene.add(gltf.scene)}
)/*** Floor*/
const floor = new THREE.Mesh(new THREE.PlaneBufferGeometry(50, 50),new THREE.MeshStandardMaterial({color: '#444444',metalness: 0,roughness: 0.5})
)
floor.receiveShadow = true
floor.rotation.x = - Math.PI * 0.5
scene.add(floor)/*** Lights*/
const ambientLight = new THREE.AmbientLight(0xffffff, 0.8)
scene.add(ambientLight)const directionalLight = new THREE.DirectionalLight(0xffffff, 0.6)
directionalLight.castShadow = true
directionalLight.shadow.mapSize.set(1024, 1024)
directionalLight.shadow.camera.far = 15
directionalLight.shadow.camera.left = - 7
directionalLight.shadow.camera.top = 7
directionalLight.shadow.camera.right = 7
directionalLight.shadow.camera.bottom = - 7
directionalLight.position.set(5, 5, 5)
scene.add(directionalLight)/*** Sizes*/
const sizes = {width: window.innerWidth,height: window.innerHeight
}window.addEventListener('resize', () =>
{// Update sizessizes.width = window.innerWidthsizes.height = window.innerHeight// Update cameracamera.aspect = sizes.width / sizes.heightcamera.updateProjectionMatrix()// Update rendererrenderer.setSize(sizes.width, sizes.height)renderer.setPixelRatio(Math.min(window.devicePixelRatio, 2))
})/*** Camera*/
// Base camera
const camera = new THREE.PerspectiveCamera(75, sizes.width / sizes.height, 0.1, 100)
camera.position.set(- 8, 4, 8)
scene.add(camera)// Controls
const controls = new OrbitControls(camera, canvas)
controls.target.set(0, 1, 0)
controls.enableDamping = true/*** Renderer*/
const renderer = new THREE.WebGLRenderer({canvas: canvas
})
renderer.shadowMap.enabled = true
renderer.shadowMap.type = THREE.PCFSoftShadowMap
renderer.setSize(sizes.width, sizes.height)
renderer.setPixelRatio(Math.min(window.devicePixelRatio, 2))/*** Animate*/
const clock = new THREE.Clock()
let previousTime = 0const tick = () =>
{const elapsedTime = clock.getElapsedTime()const deltaTime = elapsedTime - previousTimepreviousTime = elapsedTimeif(mixer){mixer.update(deltaTime)}// Update controlscontrols.update()// Renderrenderer.render(scene, camera)// Call tick again on the next framewindow.requestAnimationFrame(tick)
}tick()