质地设置

更多有趣示例 尽在小红砖社区

示例

HTML

<canvas id="c">canvas>

CSS

body {
     
  margin: 0;
}
#c {
     
  width: 100vw;
  height: 100vh;
  display: block;
}

JS

// Three.js - Textured Cube
// from https://threejsfundamentals.org/threejs/threejs-textured-cube.html


import * as THREE from 'https://threejsfundamentals.org/threejs/resources/threejs/r108/build/three.module.js';

function main() {
     
  const canvas = document.querySelector('#c');
  const renderer = new THREE.WebGLRenderer({
     canvas});

  const fov = 25;
  const aspect = 2;  // the canvas default
  const near = 0.1;
  const far = 10;
  const camera = new THREE.PerspectiveCamera(fov, aspect, near, far);
  camera.position.z = 2;

  const scene = new THREE.Scene();

  const boxWidth = 1;
  const boxHeight = 1;
  const boxDepth = 1;
  const geometry = new THREE.BoxGeometry(boxWidth, boxHeight, boxDepth);

  const loader = new THREE.TextureLoader();
  const spriteMap = loader.load('https://upload.wikimedia.org/wikipedia/commons/4/47/PNG_transparency_demonstration_1.png');
  const material = new THREE.MeshBasicMaterial({
      map: spriteMap,});
  //console.log(spriteMap.image.width);
  const cube = new THREE.Mesh(geometry, material);
  scene.add(cube);
  
  function resizeRendererToDisplaySize(renderer) {
     
    const canvas = renderer.domElement;
    const width = canvas.clientWidth;
    const height = canvas.clientHeight;
    const needResize = canvas.width !== width || canvas.height !== height;
    if (needResize) {
     
      renderer.setSize(width, height, false);
    }
    return needResize;
  }

  
  
  function render(time) {
     
    time *= 0.01;

    if (resizeRendererToDisplaySize(renderer)) {
     
      const canvas = renderer.domElement;
      camera.aspect = canvas.clientWidth / canvas.clientHeight;
      camera.updateProjectionMatrix();
    }


    renderer.render(scene, camera);

    requestAnimationFrame(render);
  }

  requestAnimationFrame(render);
}

main();