Ubuntu
283 lines
9.8 KiB
HTML
283 lines
9.8 KiB
HTML
<!DOCTYPE html>
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<html lang="zh-CN">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>33 - Stanford Armadillo</title>
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<style>
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* { margin: 0; padding: 0; box-sizing: border-box; }
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body {
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overflow: hidden;
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background: #0a0a0a;
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font-family: 'Segoe UI', monospace;
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}
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#canvas-container {
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position: fixed;
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top: 0; left: 0;
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width: 100%; height: 100%;
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}
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#ui {
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position: fixed;
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top: 0; left: 0;
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width: 100%; height: 100%;
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pointer-events: none;
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z-index: 10;
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}
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#title {
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position: absolute;
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top: 25px; left: 30px;
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color: #fff;
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font-size: 20px;
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letter-spacing: 2px;
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}
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#title span { color: #ff6b6b; font-size: 14px; }
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#stats {
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position: absolute;
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top: 25px; right: 30px;
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color: #888;
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text-align: right;
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font-size: 12px;
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}
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#stats .big {
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font-size: 22px;
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color: #fff;
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font-weight: bold;
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}
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#controls {
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position: absolute;
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bottom: 30px; left: 30px;
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pointer-events: auto;
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background: rgba(0,0,0,0.85);
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padding: 15px;
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border-radius: 10px;
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border: 1px solid rgba(255,107,107,0.3);
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}
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#controls button {
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background: rgba(255,255,255,0.08);
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border: 1px solid rgba(255,255,255,0.15);
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color: #fff;
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padding: 8px 14px;
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margin: 3px;
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border-radius: 5px;
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cursor: pointer;
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font-size: 11px;
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transition: all 0.3s;
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}
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#controls button:hover {
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background: rgba(255,107,107,0.3);
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border-color: #ff6b6b;
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}
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#controls button.active {
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background: rgba(255,107,107,0.5);
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border-color: #ff6b6b;
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}
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#loading {
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position: fixed;
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top: 50%; left: 50%;
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transform: translate(-50%, -50%);
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color: #ff6b6b;
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font-size: 24px;
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text-align: center;
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z-index: 100;
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}
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#loading .progress {
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font-size: 14px;
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color: #666;
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margin-top: 10px;
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}
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</style>
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</head>
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<body>
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<div id="loading">
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<div>🦔 加载 Armadillo...</div>
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<div class="progress" id="loading-text">6.6MB | 带颜色扫描数据</div>
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</div>
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<div id="canvas-container"></div>
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<div id="ui">
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<div id="title">33 - Stanford <span>ARMADILLO</span> 🦔</div>
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<div id="stats">
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<div class="big">172,974 顶点</div>
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<div>345,944 三角面</div>
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<div>带 RGB 颜色</div>
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<div>6.6MB 文件</div>
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</div>
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<div id="controls">
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<div style="color:#ff6b6b;margin-bottom:8px;font-size:12px;">🎨 渲染模式</div>
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<button onclick="setMode('color')" class="active" id="btn-color">彩色顶点</button>
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<button onclick="setMode('normal')" id="btn-normal">法线着色</button>
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<button onclick="setMode('wireframe')" id="btn-wireframe">线框</button>
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</div>
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</div>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r128/three.min.js"></script>
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<script src="https://cdn.jsdelivr.net/npm/three@0.128.0/examples/js/controls/OrbitControls.js"></script>
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<script>
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// ========== 场景 ==========
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const scene = new THREE.Scene();
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scene.background = new THREE.Color(0x0a0a0a);
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scene.fog = new THREE.Fog(0x0a0a0a, 1, 10);
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const camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 0.001, 100);
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camera.position.set(0.15, 0.1, 0.3);
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const renderer = new THREE.WebGLRenderer({ antialias: true });
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renderer.setSize(window.innerWidth, window.innerHeight);
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renderer.setPixelRatio(window.devicePixelRatio);
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document.getElementById('canvas-container').appendChild(renderer.domElement);
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const controls = new THREE.OrbitControls(camera, renderer.domElement);
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controls.enableDamping = true;
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controls.autoRotate = true;
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controls.autoRotateSpeed = 1;
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const ambientLight = new THREE.AmbientLight(0xffffff, 0.6);
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scene.add(ambientLight);
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const mainLight = new THREE.DirectionalLight(0xffffff, 0.8);
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mainLight.position.set(1, 2, 1);
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scene.add(mainLight);
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// ========== PLY 解析器 ==========
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async function loadArmadillo() {
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const response = await fetch('../../stanfordRecon/Armadillo.ply');
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const buffer = await response.arrayBuffer();
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const data = new Uint8Array(buffer);
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// 解析头部
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let headerEnd = 0;
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const decoder = new TextDecoder();
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for (let i = 0; i < Math.min(data.length, 5000); i++) {
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const slice = decoder.decode(data.slice(i, i+20));
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if (slice.includes('end_header')) {
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headerEnd = i + 13;
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break;
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}
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}
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const header = decoder.decode(data.slice(0, headerEnd));
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const vertexMatch = header.match(/element vertex (\d+)/);
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const numVertices = parseInt(vertexMatch[1]);
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// 检查是否有颜色
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const hasColor = header.includes('property uchar red');
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// 解析二进制数据
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const vertices = new Float32Array(numVertices * 3);
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const colors = new Float32Array(numVertices * 3);
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const view = new DataView(buffer, headerEnd);
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let offset = 0;
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for (let i = 0; i < numVertices; i++) {
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vertices[i*3] = view.getFloat32(offset, true);
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vertices[i*3+1] = view.getFloat32(offset+4, true);
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vertices[i*3+2] = view.getFloat32(offset+8, true);
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offset += 12;
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if (hasColor) {
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colors[i*3] = view.getUint8(offset) / 255;
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colors[i*3+1] = view.getUint8(offset+1) / 255;
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colors[i*3+2] = view.getUint8(offset+2) / 255;
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offset += 3;
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} else {
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colors[i*3] = 0.8;
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colors[i*3+1] = 0.6;
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colors[i*3+2] = 0.4;
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}
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// 跳过法线（如果有）
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if (header.includes('property float nx')) {
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offset += 12;
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}
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}
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return { vertices, colors, numVertices };
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}
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// ========== 创建网格 ==========
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function createMesh(data, mode) {
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if (currentMesh) {
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scene.remove(currentMesh);
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currentMesh.geometry.dispose();
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currentMesh.material.dispose();
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}
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const geometry = new THREE.BufferGeometry();
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geometry.setAttribute('position', new THREE.BufferAttribute(data.vertices, 3));
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if (mode === 'color') {
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geometry.setAttribute('color', new THREE.BufferAttribute(data.colors, 3));
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const material = new THREE.PointsMaterial({
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size: 0.003,
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vertexColors: true,
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sizeAttenuation: true
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});
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currentMesh = new THREE.Points(geometry, material);
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} else if (mode === 'normal') {
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geometry.computeVertexNormals();
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const material = new THREE.MeshNormalMaterial();
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currentMesh = new THREE.Mesh(geometry, material);
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} else if (mode === 'wireframe') {
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const material = new THREE.PointsMaterial({
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color: 0xff6b6b,
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size: 0.002,
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transparent: true,
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opacity: 0.6
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});
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currentMesh = new THREE.Points(geometry, material);
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}
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currentMesh.scale.set(0.01, 0.01, 0.01);
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// 居中
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geometry.computeBoundingBox();
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const center = new THREE.Vector3();
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geometry.boundingBox.getCenter(center);
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geometry.translate(-center.x, -center.y, -center.z);
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scene.add(currentMesh);
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}
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let currentMesh = null;
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let modelData = null;
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let currentMode = 'color';
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function setMode(mode) {
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currentMode = mode;
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document.querySelectorAll('#controls button').forEach(btn => btn.classList.remove('active'));
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document.getElementById('btn-' + mode).classList.add('active');
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if (modelData) createMesh(modelData, mode);
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}
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// ========== 加载 ==========
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loadArmadillo().then(data => {
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modelData = data;
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createMesh(data, 'color');
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document.getElementById('loading').style.display = 'none';
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});
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// ========== 动画 ==========
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function animate() {
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requestAnimationFrame(animate);
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controls.update();
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renderer.render(scene, camera);
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}
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window.addEventListener('resize', () => {
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camera.aspect = window.innerWidth / window.innerHeight;
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camera.updateProjectionMatrix();
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renderer.setSize(window.innerWidth, window.innerHeight);
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});
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animate();
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</script>
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</body>
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</html>
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