Site updated: 2022-07-10 10:58:06

2022-07-10 10:58:07 +08:00
parent 2c43933a94
commit 971436e348
79 changed files with 13462 additions and 0 deletions
--- a/lib/three/src/three-waves.js
+++ b/lib/three/src/three-waves.js
@@ -0,0 +1,91 @@
+$(function () {
+  var SEPARATION = 100,
+    AMOUNTX = 50,
+    AMOUNTY = 50;
+  var container;
+  var camera, scene, renderer;
+  var particles, particle, count = 0;
+  var mouseX = 0,
+    mouseY = 0;
+  var windowHalfX = window.innerWidth / 2;
+  var windowHalfY = window.innerHeight / 2;
+  init();
+  animate();
+
+  function init() {
+    container = document.createElement("div");
+    container.style.position = "fixed";
+    container.style.top = "0px";
+    container.style.left = "0px";
+    container.style.zIndex = "-1";
+    container.style.opacity = "0.5";
+    document.body.appendChild(container);
+    camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 1, 10000);
+    camera.position.z = 1000;
+    scene = new THREE.Scene();
+    particles = new Array();
+    var PI2 = Math.PI * 2;
+    var material = new THREE.SpriteCanvasMaterial({
+      color: 10263708,
+      program: function (context) {
+        context.beginPath();
+        context.arc(0, 0, 0.5, 0, PI2, true);
+        context.fill()
+      }
+    });
+    var i = 0;
+    for (var ix = 0; ix < AMOUNTX; ix++) {
+      for (var iy = 0; iy < AMOUNTY; iy++) {
+        particle = particles[i++] = new THREE.Sprite(material);
+        particle.position.x = ix * SEPARATION - ((AMOUNTX * SEPARATION) / 2);
+        particle.position.z = iy * SEPARATION - ((AMOUNTY * SEPARATION) / 2);
+        scene.add(particle)
+      }
+    }
+    renderer = new THREE.CanvasRenderer({
+      alpha: true
+    });
+    renderer.setPixelRatio(window.devicePixelRatio);
+    renderer.setSize(window.innerWidth, window.innerHeight);
+    container.appendChild(renderer.domElement);
+    document.addEventListener("mousemove", onDocumentMouseMove, false);
+    window.addEventListener("resize", onWindowResize, false)
+  }
+
+  function onWindowResize() {
+    windowHalfX = window.innerWidth / 2;
+    windowHalfY = window.innerHeight / 2;
+    camera.aspect = window.innerWidth / window.innerHeight;
+    camera.updateProjectionMatrix();
+    renderer.setSize(window.innerWidth, window.innerHeight)
+  }
+
+  function onDocumentMouseMove(event) {
+    mouseX = event.clientX - windowHalfX
+  }
+
+  function animate() {
+    requestAnimationFrame(animate);
+    render()
+  }
+
+  function render() {
+    camera.position.x += (mouseX - camera.position.x) * 0.05;
+    camera.position.y = 362.05;
+    camera.lookAt({
+      x: scene.position.x,
+      y: window.innerHeight / 3,
+      z: scene.position.z
+    });
+    var i = 0;
+    for (var ix = 0; ix < AMOUNTX; ix++) {
+      for (var iy = 0; iy < AMOUNTY; iy++) {
+        particle = particles[i++];
+        particle.position.y = (Math.sin((ix + count) * 0.3) * 50) + (Math.sin((iy + count) * 0.5) * 50);
+        particle.scale.x = particle.scale.y = (Math.sin((ix + count) * 0.3) + 1) * 4 + (Math.sin((iy + count) * 0.5) + 1) * 4
+      }
+    }
+    renderer.render(scene, camera);
+    count += 0.1
+  }
+});