three.js使用正方体加图片实现全景看房效果

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three.js使用正方体加图片实现全景看房效果

实现方法

1. 创建一个正方体
2. 加载6张纹理贴图
3. 正方体z轴缩放-1
4. 调整相机位置

图例

代码

<template><div class="app"><div ref="canvesRef" class="canvas-wrap"></div></div>
</template><script setup>
import { ref, onMounted } from "vue";
import * as THREE from "three";
import { OrbitControls } from "three/addons/controls/OrbitControls.js";const canvesRef = ref(null);
const canvasWidth = window.innerWidth;
const canvasHeight = window.innerHeight;
let scene;
let camera;
let renderer;
let axesHelper;
let cameraControls;init();
render();
function init() {// 场景scene = new THREE.Scene();// 模型addModel();// 相机camera = new THREE.PerspectiveCamera(75,canvasWidth / canvasHeight,0.1,3000);camera.position.set(0, 0, -1);// camera.lookAt(0, 0, 0);// 坐标辅助对象axesHelper = new THREE.AxesHelper(200);scene.add(axesHelper);// 渲染器//antialias - 是否执行抗锯齿。默认为false.renderer = new THREE.WebGLRenderer();renderer.setSize(canvasWidth, canvasHeight);// 相机轨道控制器cameraControls = new OrbitControls(camera, renderer.domElement);cameraControls.minDistance = 2;cameraControls.maxDistance = 10;// cameraControls.addEventListener("change", render);// cameraControls.target.set(0, 0, 0);// cameraControls.update();
}
function addModel() {// 几何体const geometry = new THREE.BoxGeometry(100, 100, 100);// 材质const imgs = ["4_l", "4_r", "4_u", "4_d", "4_b", "4_f"];const textureLoader = new THREE.TextureLoader();const materialArr = imgs.map((item) => {const texture = textureLoader.load(`../src/assets/img/room/${item}.jpg`);if (item === "4_u" || item === "4_d") {texture.rotation = Math.PI;texture.center = new THREE.Vector2(0.5, 0.5);}return new THREE.MeshBasicMaterial({ map: texture });});// 模型const cube = new THREE.Mesh(geometry, materialArr);cube.geometry.scale(1, 1, -1);scene.add(cube);
}
function render() {renderer.render(scene, camera);requestAnimationFrame(render);
}
onMounted(() => {canvesRef.value.appendChild(renderer.domElement);
});
</script><style lang="scss" scoped>
.app {position: relative;
}
</style>

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