Three.js 银白色玻璃纸球体变形动画

球体的表面呈现花玻璃的纹理图案。整体呈现一个潮起潮落的特效。

three, sphere

《three.js如何实现贴图模糊效果 - 使用canvas》申请公开！

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常用链接

HTML
CSS
JavaScript
Result

编译

JavaScript

var container, camera, scene, renderer;
var controls;

var shaderUniforms, shaderAttributes;

var sphere, material;

var animationTime = 0,
    animationDelta = 1 / 240;

init();
tick();

function init() {
    createScene();
    createControls();
    createParticles();

window.addEventListener('resize', onWindowResize, false);
}

function createScene() {
    container = document.getElementById('container');

scene = new THREE.Scene();

camera = new THREE.PerspectiveCamera(30, window.innerWidth / window.innerHeight, 0.1, 100);
    camera.position.z = 5;
    camera.lookAt(scene.position);

renderer = new THREE.WebGLRenderer({
        antialias: false
    });
    renderer.setSize(window.innerWidth, window.innerHeight);
    renderer.setClearColor(0x000000, 1);

container.appendChild(renderer.domElement);
}

function createControls() {
    controls = new THREE.OrbitControls(camera);
    controls.noPan = true;
}

function createParticles() {
    shaderAttributes = {
        aRotation: {
            type: "v4",
            value: []
        },
        aCentroid: {
            type: "v3",
            value: []
        },
        aColor: {
            type: "v3",
            value: []
        }
    };

shaderUniforms = {
        uTime: {
            type: "f",
            value: 0
        }
    };

material = new THREE.ShaderMaterial({
        attributes: shaderAttributes,
        uniforms: shaderUniforms,
        vertexShader: document.getElementById("vertexShader").textContent,
        fragmentShader: document.getElementById("fragmentShader").textContent
    });
    //material.side = THREE.BackSide;

var geometry = new THREE.TetrahedronGeometry(1.0, 7);
    //var geometry = new THREE.SphereGeometry(1.0, 124, 64);

var explodeModifier = new THREE.ExplodeModifier();
    explodeModifier.modify(geometry);

var twoPI = Math.PI * 2;
    var axis = new THREE.Vector3(1, 0, 0).normalize();

for (var i = 0; i < geometry.faces.length; i++) {
        var face = geometry.faces[i];

var centroid = computeCentroid(face, geometry);
        var quat = new THREE.Vector4(axis.x, axis.y, axis.z, twoPI);

shaderAttributes.aRotation.value[face.a] = quat;
        shaderAttributes.aRotation.value[face.b] = quat;
        shaderAttributes.aRotation.value[face.c] = quat;

shaderAttributes.aCentroid.value[face.a] = centroid;
        shaderAttributes.aCentroid.value[face.b] = centroid;
        shaderAttributes.aCentroid.value[face.c] = centroid;

var value = Math.random();
        var color = new THREE.Vector3(value, value, value);

shaderAttributes.aColor.value[face.a] = color;
        shaderAttributes.aColor.value[face.b] = color;
        shaderAttributes.aColor.value[face.c] = color;
    }

sphere = new THREE.Mesh(geometry, material);
    scene.add(sphere);
}

function computeCentroid(face, geometry) {
    var a = geometry.vertices[face.a],
        b = geometry.vertices[face.b],
        c = geometry.vertices[face.c],
        centroid = new THREE.Vector3();

centroid.x = (a.x + b.x + c.x) / 3;
    centroid.y = (a.y + b.y + c.y) / 3;
    centroid.z = (a.z + b.z + c.z) / 3;

return centroid;
}

function tick() {
    requestAnimationFrame(tick);

update();
    render();
}

function update() {
    shaderUniforms.uTime.value = animationTime;
    shaderUniforms.uTime.needsUpdate = true;

controls.update();

animationTime += animationDelta;
}

function render() {
    renderer.render(scene, camera);
}

function onWindowResize() {
    camera.aspect = window.innerWidth / window.innerHeight;
    camera.updateProjectionMatrix();

renderer.setSize(window.innerWidth, window.innerHeight);
}

编译

CSS

HTML

attribute vec4 aRotation; // xyz = axis, w = rotation(rad)
  attribute vec3 aCentroid;
  attribute vec3 aColor;

varying vec3 vColor;

vec3 rotateVector(vec4 q, vec3 v)
  {
  return v + 2.0 * cross(q.xyz, cross(q.xyz,v) + q.w * v);
  }

vec4 quatFromAxisAngle(vec3 axis, float angle)
  {
  float halfAngle = angle * 0.5;

return vec4(axis.xyz * sin(halfAngle), cos(halfAngle));
  }

void main()
  {
  vec3 tPosition = position - aCentroid;
  vec3 tPosition2 = tPosition;
  float tTime = fract(uTime);

tPosition = rotateVector(quatFromAxisAngle(aRotation.xyz, aRotation.w * tTime), tPosition);
  tPosition = (tPosition - tPosition2 + position);

vColor = aColor;

gl_Position = projectionMatrix * modelViewMatrix * vec4(tPosition, 1.0);
  }
</script>

void main()
  {
  gl_FragColor = vec4(vColor, 1.0);
  }
</script>

球体的表面呈现花玻璃的纹理图案。整体呈现一个潮起潮落的特效。

three, sphere

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球体的表面呈现花玻璃的纹理图案。 整体呈现一个潮起潮落的特效。

three, sphere

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编辑器支持Emmet

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球体的表面呈现花玻璃的纹理图案。整体呈现一个潮起潮落的特效。