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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>FlashWorld Demo</title>
<meta name="description" content="">
<style>
body {
margin: 0;
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
background: #1a1a1a;
color: #ffffff;
overflow: hidden;
}
.main-container {
display: flex;
height: 100vh;
flex-direction: column;
}
.header {
background: rgba(0, 0, 0, 0.8);
padding: 15px 20px;
text-align: center;
border-bottom: 1px solid rgba(255, 255, 255, 0.1);
flex-shrink: 0;
}
.header h1 {
margin: 0;
color: white;
font-size: 1.8em;
font-weight: 600;
margin-bottom: 8px;
}
.header-title-wrap {
display: inline-flex;
align-items: center;
gap: 8px;
position: relative;
}
.header-links {
display: flex;
justify-content: center;
gap: 20px;
margin-top: 8px;
}
.header-links a {
color: #60a5fa;
text-decoration: none;
font-size: 0.9em;
padding: 5px 10px;
border: 1px solid #60a5fa;
border-radius: 5px;
transition: all 0.3s ease;
}
.header-links a:hover {
background: #60a5fa;
color: white;
}
.content-container {
display: flex;
flex: 1;
overflow: visible; /* Allow tooltips to extend beyond container */
min-height: 0; /* allow children to shrink and scroll inside */
}
.left-panel {
width: 280px;
background: rgba(0, 0, 0, 0.7);
border-right: 1px solid rgba(255, 255, 255, 0.1);
padding: 20px;
overflow-y: auto;
overflow-x: visible; /* Allow tooltips to extend beyond panel */
flex-shrink: 0;
min-height: 0; /* ensure scrollable in flex layouts */
-webkit-overflow-scrolling: touch; /* smoother scrolling on iOS */
}
.center-panel {
flex: 1;
position: relative;
background: #000;
display: flex;
justify-content: center;
align-items: center;
z-index: 1; /* Lower z-index to allow tooltips to appear above */
}
.right-panel {
width: 300px;
background: rgba(0, 0, 0, 0.7);
border-left: 1px solid rgba(255, 255, 255, 0.1);
padding: 20px;
overflow-y: auto;
flex-shrink: 0;
z-index: 1; /* Lower z-index to allow tooltips to appear above */
}
.guidance {
color: #e5e7eb;
}
.guidance h2 {
color: #ffffff;
margin-top: 0;
font-size: 1.3em;
border-bottom: 2px solid #60a5fa;
padding-bottom: 8px;
margin-bottom: 20px;
}
.gui-container h2{
color: #ffffff;
margin-top: 0;
font-size: 1.3em;
border-bottom: 2px solid #60fae5;
padding-bottom: 8px;
margin-bottom: 20px;
}
.step {
margin: 12px 0;
padding: 12px;
background: rgba(96, 165, 250, 0.1);
border-radius: 6px;
border-left: 3px solid #60a5fa;
}
.step h3 {
margin: 0 0 8px 0;
color: #ffffff;
font-size: 1em;
}
.step p {
margin: 4px 0;
line-height: 1.4;
font-size: 0.85em;
color: #d1d5db;
}
.controls-info {
background: rgba(168, 85, 247, 0.1);
border-left: 3px solid #a855f7;
}
.keyboard-shortcuts {
background: rgba(34, 197, 94, 0.1);
border-left: 3px solid #22c55e;
}
.loading {
position: absolute;
top: 50%;
left: 50%;
min-width: 300px;
min-height: 200px;
transform: translate(-50%, -50%);
background: rgba(0, 0, 0, 0.9);
color: white;
padding: 20px;
border-radius: 10px;
display: none;
z-index: 1000;
text-align: center;
vertical-align: middle;
}
.generation-info {
background: rgba(34, 197, 94, 0.1);
border: 1px solid #22c55e;
border-radius: 8px;
padding: 15px;
margin: 10px 0;
color: #22c55e;
font-family: 'Courier New', monospace;
font-size: 0.9em;
}
.progress-container {
width: 100%;
background: rgba(255, 255, 255, 0.1);
border-radius: 10px;
overflow: hidden;
margin: 10px 0;
position: relative;
}
.progress-bar {
height: 20px;
background: linear-gradient(90deg, #60a5fa, #3b82f6);
width: 0%;
transition: width 0.3s ease;
border-radius: 10px;
position: relative;
}
.progress-text {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
color: white;
font-weight: bold;
font-size: 0.8em;
white-space: nowrap;
}
/* Info tooltip */
.info-tip {
display: inline-block;
position: relative;
margin-left: 8px;
width: 16px;
height: 16px;
line-height: 16px;
text-align: center;
border-radius: 50%;
background: #3b82f6;
color: #fff;
font-size: 12px;
cursor: default;
user-select: none;
z-index: 100000; /* Ensure the tip itself is above everything */
}
.info-tip .tooltip {
display: none;
position: absolute;
left: 0;
top: calc(100% + 8px); /* show below the icon */
transform: none;
background: rgba(0,0,0,0.95);
color: #e5e7eb;
border: 1px solid rgba(255,255,255,0.2);
border-radius: 8px;
padding: 10px 12px;
font-size: 12px;
width: 480px;
white-space: normal;
z-index: 999999; /* Even higher z-index to ensure it's above everything */
box-shadow: 0 8px 24px rgba(0,0,0,0.6);
text-align: left;
}
.info-tip:hover .tooltip {
display: block;
}
.status-bar {
background: rgba(0, 0, 0, 0.9);
color: #60a5fa;
padding: 8px 15px;
font-family: 'Courier New', monospace;
font-size: 0.8em;
border-top: 1px solid rgba(255, 255, 255, 0.1);
flex-shrink: 0;
}
.canvas-container {
width: 100%;
height: 100%;
display: flex;
justify-content: center;
align-items: center;
background:
repeating-linear-gradient(
45deg,
#1a1a1a 0px,
#1a1a1a 10px,
#2a2a2a 10px,
#2a2a2a 20px
);
position: relative;
}
.canvas-wrapper {
position: relative;
border: 2px solid #444;
background: #111;
box-shadow:
0 0 20px rgba(0, 0, 0, 0.5),
inset 0 0 10px rgba(0, 0, 0, 0.3);
border-radius: 4px;
}
.canvas-wrapper canvas {
display: block;
border-radius: 2px;
}
/* Add a subtle animation to the canvas wrapper */
.canvas-wrapper:hover {
border-color: #666;
box-shadow:
0 0 30px rgba(0, 0, 0, 0.7),
inset 0 0 15px rgba(0, 0, 0, 0.4);
}
/* Progress & status beautify */
.progress-container {
width: 100%;
height: 18px;
background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02));
border: 1px solid rgba(255,255,255,0.12);
border-radius: 999px;
overflow: hidden;
box-shadow: 0 2px 10px rgba(0,0,0,0.35) inset;
position: relative;
}
.progress-bar {
height: 100%;
background: linear-gradient(90deg, #60a5fa, #8b5cf6);
box-shadow: 0 0 10px rgba(96,165,250,0.65);
position: relative;
transition: width .15s ease;
}
.progress-text {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
font-size: 11px;
color: #f8fafc;
text-shadow: 0 1px 2px rgba(0,0,0,0.5);
pointer-events: none;
white-space: nowrap;
}
.status-badges {
display: flex;
gap: 8px;
flex-wrap: wrap;
margin-top: 8px;
}
.badge {
display: inline-flex;
align-items: center;
gap: 6px;
padding: 6px 10px;
border-radius: 8px;
font-size: 12px;
border: 1px solid rgba(255,255,255,0.12);
background: rgba(255,255,255,0.06);
}
.badge .dot { width: 8px; height: 8px; border-radius: 999px; }
.badge.queue .dot { background: #f59e0b; }
.badge.running .dot { background: #22c55e; }
.badge.time .dot { background: #60a5fa; }
.badge.bytes .dot { background: #a78bfa; }
.details-grid {
display: grid;
grid-template-columns: repeat(2, minmax(0, 1fr));
gap: 6px 12px;
margin-top: 8px;
font-size: 12px;
color: #cbd5e1;
}
.details-grid div { opacity: 0.9; }
/* Canvas resizing indicator */
.canvas-wrapper.resizing {
border-color: #60a5fa;
box-shadow:
0 0 25px rgba(96, 165, 250, 0.3),
inset 0 0 10px rgba(96, 165, 250, 0.1);
}
.canvas-wrapper.resizing::after {
content: "Resizing...";
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
color: #60a5fa;
font-size: 12px;
font-weight: bold;
z-index: 10;
pointer-events: none;
}
/* GUI Panel Styling */
.gui-panel {
background: rgba(0, 0, 0, 0.8);
border-radius: 8px;
padding: 15px;
min-height: 400px;
}
.gui-panel .lil-gui {
--background-color: rgba(0, 0, 0, 0.8);
--text-color: #ffffff;
--title-background-color: rgba(96, 165, 250, 0.2);
--title-text-color: #ffffff;
--widget-color: rgba(96, 165, 250, 0.3);
--hover-color: rgba(96, 165, 250, 0.5);
}
/* Ensure GUI is visible */
.lil-gui {
position: relative !important;
z-index: 1000 !important;
}
/* Examples gallery */
.examples-section {
margin-top: 16px;
padding-top: 12px;
border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.examples-section h3 {
margin: 0 0 8px 0;
color: #ffffff;
font-size: 1em;
}
.examples-grid {
display: grid;
grid-template-columns: repeat(4, 1fr);
gap: 8px;
}
.example-item {
position: relative;
width: 100%;
padding-top: 100%;
background: rgba(255,255,255,0.06);
border: 1px solid rgba(255,255,255,0.12);
border-radius: 6px;
overflow: hidden;
cursor: pointer;
transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.example-item:hover {
transform: translateY(-2px);
box-shadow: 0 6px 16px rgba(0,0,0,0.35);
}
.example-item img {
position: absolute;
top: 0; left: 0; right: 0; bottom: 0;
width: 100%; height: 100%; object-fit: cover;
}
.example-item .label {
position: absolute;
bottom: 0; left: 0; right: 0;
background: linear-gradient(180deg, rgba(0,0,0,0) 0%, rgba(0,0,0,0.65) 100%);
color: #e5e7eb;
font-size: 11px;
padding: 4px 6px;
text-align: center;
}
@media (max-width: 1200px) {
.left-panel {
width: 250px;
}
.right-panel {
width: 280px;
}
}
@media (max-width: 768px) {
.content-container {
flex-direction: column;
}
.left-panel, .right-panel {
width: 100%;
height: auto;
max-height: 200px;
}
.center-panel {
flex: 1;
min-height: 400px;
}
}
</style>
<script type="importmap">
{
"imports": {
"three": "https://cdnjs.cloudflare.com/ajax/libs/three.js/0.178.0/three.module.js",
"@sparkjsdev/spark": "https://sparkjs.dev/releases/spark/0.1.9/spark.module.js",
"lil-gui": "https://cdn.jsdelivr.net/npm/[email protected]/+esm"
}
}
</script>
</head>
<body>
<div class="main-container">
<!-- Header Section -->
<header class="header">
<div style="display: flex; justify-content: space-between; align-items: center; width: 100%;">
<h1 style="margin: 0; flex: 1; text-align: left;">
<span class="header-title-wrap">FlashWorld Spark Demo
<span class="info-tip">!
<span class="tooltip" style="max-width: 260px; text-align: left;">Front-end real-time rendering in Spark uses compressed and pruned Gaussians. Visual quality in this demo may be lower than offline/back-end rendering.
</span>
</span>
</span>
</h1>
<div class="header-links" style="margin-left: 20px;">
<a href="https://arxiv.org/pdf/2510.13678" target="_blank">Paper</a>
<a href="https://github.com/imlixinyang/FlashWorld" target="_blank">Code</a>
<a href="https://imlixinyang.github.io/FlashWorld-Project-Page/" target="_blank">Project Page</a>
</div>
</div>
</header>
<!-- Main Content Container -->
<div class="content-container">
<!-- Left Panel: Simplified Guidance -->
<div class="left-panel">
<div class="guidance">
<!-- <h2>Instructions</h2> -->
<div class="step">
<h3>1. Configure</h3>
<p>Set FOV and Resolution and Click "Fix Configurations"</p>
<p><strong>Important</strong>: You need to specify your Hugging Face Access Token with READ permission to use the online free ZeroGPU service.</p>
</div>
<div class="step">
<h3>2. Set Camera Trajectory</h3>
<p><b>Manual:</b> Navigate with mouse and keyboard, press <kbd>Space</kbd> to record</p>
<p><b>Template:</b> Select template type and click "Generate Trajectory"</p>
<p><b>JSON:</b> Load trajectory from JSON file</p>
</div>
<div class="step">
<h3>3. Add Prompts</h3>
<p>Upload image or enter text description</p>
</div>
<div class="step">
<h3>4. Generate</h3>
<p>Click "Generate!" to create your scene</p>
</div>
<div class="step controls-info">
<h3>Controls</h3>
<p><strong>Mouse/QE:</strong> Rotate view</p>
<p><strong>WASD/RF:</strong> Move</p>
<p><strong>Space:</strong> Record camera</p>
</div>
</div>
<!-- Examples Gallery -->
<div id="examples-section" class="examples-section">
<h3>Examples</h3>
<div id="examples-grid" class="examples-grid"></div>
</div>
</div>
<!-- Center Panel: Canvas -->
<div class="center-panel">
<div class="canvas-container" id="canvas-container">
<div class="canvas-wrapper" id="canvas-wrapper">
<div class="loading" id="loading">
<h3>🎬 Generating Scene...</h3>
<p>Please wait while we create your 3D scene</p>
<div id="generation-info" class="generation-info" style="display: none;">
<div><strong>Generation Time:</strong> <span id="generation-time">-</span> seconds</div>
<div><strong>File Size:</strong> <span id="file-size">-</span> MB</div>
</div>
<div id="download-progress" style="display: none;">
<div class="progress-container">
<div class="progress-bar" id="progress-bar"></div>
<div class="progress-text" id="progress-text">0%</div>
</div>
<div class="status-badges" id="status-badges" style="display: none;">
<div class="badge queue" id="badge-queue"><span class="dot"></span><span id="badge-queue-text">Queue</span></div>
<div class="badge running" id="badge-running" style="display: none;"><span class="dot"></span><span id="badge-running-text">Running</span></div>
<div class="badge time" id="badge-time" style="display: none;"><span class="dot"></span><span id="badge-time-text">00:00</span></div>
</div>
<div id="queue-details" class="details-grid" style="display: none;"></div>
<div id="download-details" class="details-grid" style="display: none;"></div>
</div>
</div>
</div>
</div>
</div>
<!-- Right Panel: GUI -->
<div class="right-panel">
<div class="gui-container">
<!-- <h2>GUI</h2> -->
<div class="gui-panel" id="gui-container">
<!-- GUI will be inserted here -->
</div>
</div>
<!-- Image Preview Area -->
<div id="image-preview-area" style="padding: 10px; display: none;">
<div style="font-size: 12px; color: #ccc; margin-bottom: 8px; text-align: left;">Input Image Preview</div>
<div style="text-align: center;">
<img id="preview-img" style="max-width: 100%; max-height: 200px; border-radius: 4px; box-shadow: 0 2px 8px rgba(0,0,0,0.3);" />
</div>
</div>
</div>
</div>
<!-- Status Bar -->
<div class="status-bar" id="status-bar">
Ready to generate 3D scenes | Cameras: 0 | Status: Waiting for input
</div>
</div>
<!-- Hidden File Inputs -->
<input id="file-input" type="file" accept=".jpg,.png,.jpeg" multiple="true" style="display: none;" />
<input id="json-input" type="file" accept=".json" multiple="false" style="display: none;" />
<script type="module">
// =========================
// Imports & Global Variables
// =========================
import * as THREE from "three";
import { SplatMesh, SparkControls, textSplats } from "@sparkjsdev/spark";
import GUI from "lil-gui";
// Scene, Camera, Renderer, Controls
const scene = new THREE.Scene();
const camera = new THREE.PerspectiveCamera(60, window.innerWidth / window.innerHeight, 0.1, 1000);
camera.position.set(0, 0, 1.5);
const renderer = new THREE.WebGLRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
// Wait for DOM to be ready
function initializeRenderer() {
const canvasWrapper = document.getElementById('canvas-wrapper');
if (canvasWrapper) {
canvasWrapper.appendChild(renderer.domElement);
// Set initial canvas size based on current resolution
updateCanvasSize();
console.log('Canvas initialized in wrapper');
} else {
console.error('Canvas wrapper not found');
}
}
// Update canvas size based on selected resolution
function updateCanvasSize() {
const canvasWrapper = document.getElementById('canvas-wrapper');
if (!canvasWrapper) return;
// Show resizing indicator
canvasWrapper.classList.add('resizing');
// Get current resolution from GUI options
const resolution = guiOptions.Resolution.split('x');
const width = parseInt(resolution[2]) || 704; // W
const height = parseInt(resolution[1]) || 480; // H
// Set canvas size
renderer.setSize(width, height);
camera.aspect = width / height;
camera.updateProjectionMatrix();
// Update wrapper size to match canvas
canvasWrapper.style.width = width + 'px';
canvasWrapper.style.height = height + 'px';
// Remove resizing indicator after a short delay
setTimeout(() => {
canvasWrapper.classList.remove('resizing');
}, 300);
console.log('Canvas size updated:', width, 'x', height);
}
const controls = new SparkControls({ canvas: renderer.domElement });
// Camera splats and params
const cameraSplats = [];
const cameraParams = [];
const interpolatedCamerasSplats = [];
// State
let fixGenerationFOV = false;
let inputImageBase64 = null;
let inputImageResolution = null;
let currentGeneratedSplat = null; // 跟踪当前生成的场景
let currentDownloadedBlob = null; // 保存已下载的文件blob
// UI Elements
const loadingElement = document.getElementById('loading');
const statusBar = document.getElementById('status-bar');
// GUI variable - declare early
let gui = null;
// Status update function
function updateStatus(message, cameraCount = null) {
const cameraText = cameraCount !== null ? `Cameras: ${cameraCount}` : `Cameras: ${cameraParams.length}`;
statusBar.textContent = `${message} | ${cameraText} | Status: ${fixGenerationFOV ? 'Ready to record' : 'Configure settings'}`;
// Update save trajectory button state
updateSaveTrajectoryButton();
}
// Update save trajectory button state based on camera count
function updateSaveTrajectoryButton() {
if (window.saveTrajectoryController) {
if (cameraParams.length >= 2) {
window.saveTrajectoryController.enable();
} else {
window.saveTrajectoryController.disable();
}
}
}
// Auth-aware fetch helper that injects Authorization header when HF_TOKEN is set
function fetchWithAuth(url, options = {}) {
const mergedOptions = { ...options };
const headers = new Headers(options && options.headers ? options.headers : undefined);
if (guiOptions && guiOptions.HF_TOKEN && String(guiOptions.HF_TOKEN).trim().length > 0) {
headers.set('Authorization', `Bearer ${guiOptions.HF_TOKEN}`);
}
mergedOptions.headers = headers;
return fetch(url, mergedOptions);
}
// Show/hide loading
function showLoading(show) {
loadingElement.style.display = show ? 'block' : 'none';
}
// Show generation info
function showGenerationInfo(generationTime, fileSize) {
const generationInfo = document.getElementById('generation-info');
const generationTimeElement = document.getElementById('generation-time');
const fileSizeElement = document.getElementById('file-size');
generationTimeElement.textContent = generationTime.toFixed(2);
fileSizeElement.textContent = (fileSize / (1024 * 1024)).toFixed(2);
generationInfo.style.display = 'block';
}
// Show download progress
function showDownloadProgress() {
const downloadProgress = document.getElementById('download-progress');
downloadProgress.style.display = 'block';
const qd = document.getElementById('queue-details');
const dd = document.getElementById('download-details');
const badges = document.getElementById('status-badges');
if (qd) qd.style.display = 'none';
if (dd) dd.style.display = 'none';
if (badges) badges.style.display = 'none';
}
// Update progress bar
function updateProgressBar(percentage) {
const progressBar = document.getElementById('progress-bar');
const progressText = document.getElementById('progress-text');
progressBar.style.width = percentage + '%';
progressText.textContent = `${Math.round(percentage)}%`;
}
// Update progress label text (stage indicator)
function setProgressLabel(text) {
const progressText = document.getElementById('progress-text');
if (progressText) progressText.textContent = text;
}
// ==============
// Queue handling
// ==============
let queuePollTimer = null;
let currentTaskId = null;
let initialQueuePosition = null;
let latestGenerationTime = null;
let lastDownloadPct = 0;
let lastDownloadUpdateTs = 0;
function showQueueWaiting(position, runningCount, queuedCount) {
// Use only the progress bar to show queue progress (from initial position to 0)
showDownloadProgress();
if (initialQueuePosition === null) {
// Initialize from first seen position; ensure >= 1 so 0 -> 100%
const initPos = (typeof position === 'number') ? position : 0;
initialQueuePosition = Math.max(initPos, 1);
}
const percent = initialQueuePosition && initialQueuePosition > 0
? Math.max(0, Math.min(100, ((initialQueuePosition - (position || 0)) / initialQueuePosition) * 100))
: 0;
updateProgressBar(percent);
const totalWaiting = (position || 0) + (queuedCount || 0);
if (position !== null && position !== undefined) {
const pctText = `${Math.round(percent)}%`;
if (totalWaiting > 0) {
setProgressLabel(`Queued ${position}/${totalWaiting} (${pctText})`);
} else {
setProgressLabel(`Queued ${position} (${pctText})`);
}
} else {
setProgressLabel('Queued');
}
}
async function pollTaskUntilReady(taskId) {
currentTaskId = taskId;
initialQueuePosition = null;
if (queuePollTimer) {
clearInterval(queuePollTimer);
queuePollTimer = null;
}
const queueStartTs = Date.now();
const pollOnce = async () => {
try {
const resp = await fetchWithAuth(`${guiOptions.BackendAddress}/task/${taskId}`);
if (!resp.ok) return;
const info = await resp.json();
if (!info || !info.success) return;
const pos = info.queue && typeof info.queue.position === 'number' ? info.queue.position : 0;
const running = info.queue ? info.queue.running_count : 0;
const queued = info.queue ? info.queue.queued_count : 0;
if (info.status === 'queued' || info.status === 'running') {
// Only progress bar; set stage label
if (info.status === 'queued') {
showQueueWaiting(pos, running, queued);
} else {
// Transitioned to running: finalize queue progress visually
updateProgressBar(100);
showDownloadProgress();
setProgressLabel('Generating...');
}
}
if (info.status === 'completed' && info.download_url) {
clearInterval(queuePollTimer);
queuePollTimer = null;
latestGenerationTime = typeof info.generation_time === 'number' ? info.generation_time : null;
// Proceed to download the generated file like the normal path
updateStatus('Downloading generated scene...', cameraParams.length);
const response = await fetchWithAuth(guiOptions.BackendAddress + info.download_url);
if (!response.ok) throw new Error(`HTTP error! status: ${response.status}`);
const contentLength = response.headers.get('content-length');
const total = parseInt(contentLength || '0', 10);
// Show generation info immediately once we know it and total size from headers
showGenerationInfo(latestGenerationTime || 0, total);
let loaded = 0;
const reader = response.body.getReader();
const chunks = [];
updateProgressBar(0);
setProgressLabel('Downloading 0%');
lastDownloadPct = 0;
lastDownloadUpdateTs = 0;
while (true) {
const { done, value } = await reader.read();
if (done) break;
chunks.push(value);
loaded += value.length;
if (total) {
const pct = Math.min(100, (loaded / total) * 100);
const now = Date.now();
const rounded = Math.round(pct);
// Throttle and enforce monotonic increase
if (rounded > Math.round(lastDownloadPct) || (now - lastDownloadUpdateTs) > 200) {
lastDownloadPct = Math.max(lastDownloadPct, pct);
updateProgressBar(lastDownloadPct);
setProgressLabel(`Downloading ${Math.round(lastDownloadPct)}%`);
lastDownloadUpdateTs = now;
}
}
}
if (instructionSplat) {
scene.remove(instructionSplat);
console.log('Instruction splat removed');
instructionSplat = null;
}
const blob = new Blob(chunks);
const url = URL.createObjectURL(blob);
// 保存blob供后续下载使用
currentDownloadedBlob = blob;
// Continue to load the splat
updateStatus('Loading generated scene...', cameraParams.length);
const GeneratedSplat = new SplatMesh({ url });
scene.add(GeneratedSplat);
currentGeneratedSplat = GeneratedSplat;
updateStatus('Scene generated successfully!', cameraParams.length);
// Show generation time and total file size (MB)
showGenerationInfo(latestGenerationTime || 0, total || blob.size);
// 启用下载按钮
if (window.downloadController) {
window.downloadController.enable();
}
// Notify backend to delete the server file after client has downloaded it
try {
if (info.file_id) {
const resp = await fetchWithAuth(`${guiOptions.BackendAddress}/delete/${info.file_id}`, { method: 'POST' });
if (!resp.ok) console.warn('Delete notify failed');
}
} catch (e) {
console.warn('Delete notify error', e);
}
hideDownloadProgress();
showLoading(false);
} else if (info.status === 'failed') {
clearInterval(queuePollTimer);
queuePollTimer = null;
throw new Error(info.error || 'Generation failed');
}
} catch (e) {
console.debug('Polling error:', e);
}
};
await pollOnce();
queuePollTimer = setInterval(pollOnce, 2000);
}
// Hide download progress
function hideDownloadProgress() {
const downloadProgress = document.getElementById('download-progress');
downloadProgress.style.display = 'none';
}
// Playback scrubber (0..1)
let userCameraState = null; // 存储用户播放前的相机状态
// 根据时间比例获取插值相机
function getInterpolatedCameraAtTime(t) {
if (cameraParams.length === 0) {
return camera;
}
if (cameraParams.length === 1) {
return cameraParams[0];
}
// 确保t在有效范围内
const clampedT = Math.max(0, Math.min(1, t));
// 计算在相机序列中的位置
const cameraIndex = clampedT * (cameraParams.length - 1);
const startIndex = Math.min(Math.floor(cameraIndex), cameraParams.length - 2);
const endIndex = startIndex + 1;
const startCamera = cameraParams[startIndex];
const endCamera = cameraParams[endIndex];
// 计算两个相机之间的插值比例
const _t = cameraIndex - startIndex;
// 使用interpolateTwoCameras进行插值
return interpolateTwoCameras(startCamera, endCamera, _t);
}
function setCameraByScrub(t) {
if (cameraParams.length === 0) return;
const clampedT = Math.max(0, Math.min(1, t));
const camT = getInterpolatedCameraAtTime(clampedT);
camera.position.copy(camT.position);
camera.quaternion.copy(camT.quaternion);
camera.fov = camT.fov;
camera.updateProjectionMatrix();
}
// Supported resolutions
const supportedResolutions = [
{ frame: 24, width: 704, height: 480 },
{ frame: 24, width: 480, height: 704 }
];
// GUI Options - declare early
const guiOptions = {
// 后端地址，默认为本页面ip
BackendAddress: `https://imlixinyang-flashworld-demo.hf.space`,
HF_TOKEN: "",
FOV: 60,
LoadFromJson: () => {
const jsonInput = document.querySelector("#json-input");
if (jsonInput) jsonInput.click();
},
LoadTrajectoryFromJson: () => {
if (!fixGenerationFOV) {
updateStatus('Warning: Please fix configuration first before loading trajectory', cameraParams.length);
return;
}
// 设置标志，表示只加载轨迹
window.loadTrajectoryOnly = true;
const jsonInput = document.querySelector("#json-input");
if (jsonInput) jsonInput.click();
},
fixGenerationFOV: () => {
// These controllers will be set when GUI is initialized
if (window.fixGenerationFOVController) window.fixGenerationFOVController.disable();
fixGenerationFOV = true;
const new_camera = new THREE.PerspectiveCamera(guiOptions.FOV, guiOptions.Resolution.split('x')[2] / guiOptions.Resolution.split('x')[1]);
new_camera.position.set(0, 0, 0);
new_camera.quaternion.set(0, 0, 0, 1);
new_camera.updateProjectionMatrix();
const cameraSplat = createCameraSplat(new_camera);
cameraSplats.push(cameraSplat);
cameraParams.push({
position: new_camera.position.clone(),
quaternion: new_camera.quaternion.clone(),
fov: new_camera.fov,
aspect: new_camera.aspect,
});
scene.add(cameraSplat);
updateStatus('Camera settings fixed. Press Space to record cameras.', cameraParams.length);
},
Resolution: `${supportedResolutions[0].frame}x${supportedResolutions[0].height}x${supportedResolutions[0].width}`,
VisualizeCameraSplats: true,
VisualizeInterpolatedCameras: true,
inputImagePrompt: () => {
const fileInput = document.querySelector("#file-input");
if (fileInput) {
// 仅触发选择，由全局处理程序完成裁剪与预览更新
fileInput.click();
}
},
imageIndex: 0,
inputTextPrompt: "",
// Step 6: All-in-one JSON IO
LoadAllFromJson: () => {
// Full load (image/text/index/resolution/cameras)
window.loadTrajectoryOnly = false;
const jsonInput = document.querySelector("#json-input");
if (jsonInput) jsonInput.click();
},
SaveAllToJson: () => {
// Build JSON payload matching transmission format
const [nStr, hStr, wStr] = guiOptions.Resolution.split('x');
const n = parseInt(nStr), h = parseInt(hStr), w = parseInt(wStr);
const fovDeg = guiOptions.FOV;
const fy = 0.5 / Math.tan(0.5 * fovDeg * Math.PI / 180) * h;
const fx = fy; // keep fx consistent with fy-derived FOV
const cx = 0.5 * w;
const cy = 0.5 * h;
const payload = {
image_prompt: inputImageBase64 ? inputImageBase64 : null,
text_prompt: guiOptions.inputTextPrompt || "",
image_index: guiOptions.imageIndex || 0,
resolution: [n, h, w],
cameras: cameraParams.map(cam => ({
position: [cam.position.x, cam.position.y, cam.position.z],
quaternion: [cam.quaternion.w, cam.quaternion.x, cam.quaternion.y, cam.quaternion.z],
fx, fy, cx, cy
}))
};
const blob = new Blob([JSON.stringify(payload, null, 2)], { type: 'application/json' });
const url = URL.createObjectURL(blob);
const a = document.createElement('a');
a.href = url;
a.download = `scene_all_${Date.now()}.json`;
document.body.appendChild(a);
a.click();
document.body.removeChild(a);
URL.revokeObjectURL(url);
updateStatus('All data saved to JSON.', cameraParams.length);
},
// Camera trajectory templates
trajectoryMode: "Manual",
templateType: "Move Forward",
cameraTrajectory: "Manual",
trajectorySettings: {
angle: 180, // 角度 (180, 360)
tilt: 15 // 倾斜角 (15, 30, 45)
},
generateTrajectory: () => {
generateCameraTrajectory(guiOptions.templateType);
},
saveTrajectoryToJson: () => {
// Build JSON payload compatible with loader
const [nStr, hStr, wStr] = guiOptions.Resolution.split('x');
const n = parseInt(nStr), h = parseInt(hStr), w = parseInt(wStr);
const payload = {
// image_prompt: null,
// text_prompt: guiOptions.inputTextPrompt || "",
// image_index: guiOptions.imageIndex || 0,
// resolution: [n, h, w],
cameras: cameraParams.map(cam => ({
position: [cam.position.x, cam.position.y, cam.position.z],
quaternion: [cam.quaternion.w, cam.quaternion.x, cam.quaternion.y, cam.quaternion.z]
}))
};
const blob = new Blob([JSON.stringify(payload, null, 2)], { type: 'application/json' });
const url = URL.createObjectURL(blob);
const a = document.createElement('a');
a.href = url;
a.download = `trajectory_${Date.now()}.json`;
document.body.appendChild(a);
a.click();
document.body.removeChild(a);
URL.revokeObjectURL(url);
updateStatus('Trajectory saved to JSON.', cameraParams.length);
},
clearAllCameras: () => {
if (cameraParams.length <= 1) {
updateStatus('No cameras to clear (first camera is always preserved)', cameraParams.length);
return;
}
// Keep the first camera, remove all others
const firstCamera = cameraParams[0];
const firstSplat = cameraSplats[0];
// Remove all camera splats except the first one
for (let i = cameraSplats.length - 1; i >= 1; i--) {
scene.remove(cameraSplats[i]);
}
// Keep only the first camera in arrays
cameraSplats.length = 1;
cameraParams.length = 1;
// Clear all interpolated camera splats from scene
interpolatedCamerasSplats.forEach(splat => scene.remove(splat));
interpolatedCamerasSplats.length = 0;
updateStatus('Cameras cleared (first camera preserved). Ready to add more cameras.', 1);
console.log('Cameras cleared, first camera preserved');
},
// Playback scrub value (0..1)
playbackT: 0,
downloadGeneratedFile: () => {
if (!currentDownloadedBlob) {
updateStatus('No generated file available to download', cameraParams.length);
return;
}
updateStatus(`Downloading SPZ file (${(currentDownloadedBlob.size / 1024 / 1024).toFixed(2)} MB)...`, cameraParams.length);
// 直接使用已保存的blob创建下载链接
const url = URL.createObjectURL(currentDownloadedBlob);
const a = document.createElement('a');
a.href = url;
a.download = `${Date.now()}.spz`;
document.body.appendChild(a);
a.click();
document.body.removeChild(a);
URL.revokeObjectURL(url);
updateStatus('SPZ file downloaded successfully!', cameraParams.length);
},
generate: () => {
// 检查是否有足够的相机
if (cameraParams.length < 2) {
console.error('Need at least 2 cameras to generate. Please press Space to record more cameras.');
updateStatus('Error: Need at least 2 cameras', cameraParams.length);
return;
}
updateStatus('Preparing generation...', cameraParams.length);
// 删除之前生成的场景
if (currentGeneratedSplat) {
scene.remove(currentGeneratedSplat);
currentGeneratedSplat = null;
console.log('Previous generated scene removed');
}
// 清除之前的下载文件
currentDownloadedBlob = null;
// 禁用下载按钮
if (window.downloadController) {
window.downloadController.disable();
}
// 初始化进度条信息
const generationTimeElement = document.getElementById('generation-time');
const fileSizeElement = document.getElementById('file-size');
const progressBar = document.getElementById('progress-bar');
const progressText = document.getElementById('progress-text');
if (generationTimeElement) generationTimeElement.textContent = '-';
if (fileSizeElement) fileSizeElement.textContent = '-';
if (progressBar) progressBar.style.width = '0%';
if (progressText) progressText.textContent = '0%';
// 隐藏生成信息和下载进度
const generationInfo = document.getElementById('generation-info');
const downloadProgress = document.getElementById('download-progress');
if (generationInfo) generationInfo.style.display = 'none';
if (downloadProgress) downloadProgress.style.display = 'none';
showLoading(true);
// 生成插值相机并可视化
const interpolatedCameras = interpolateCameras(cameraParams, parseInt(guiOptions.Resolution.split('x')[0]));
interpolatedCameras.forEach(cam => {
const interpolatedCameraSplat = createCameraSplat(cam, [0.5, 0.5, 0.5]);
interpolatedCamerasSplats.push(interpolatedCameraSplat);
scene.add(interpolatedCameraSplat);
});
console.log('Sending request to backend...');
console.log('Interpolated cameras:', interpolatedCameras.length);
updateStatus('Sending request to backend...', cameraParams.length);
// 调用 Gradio 后端：POST 到 /gradio_api/call/gradio_generate，然后通过 SSE 获取结果
const requestUrl = guiOptions.BackendAddress + '/gradio_api/call/gradio_generate';
const requestData = {
image_prompt: inputImageBase64 ? inputImageBase64 : "",
text_prompt: guiOptions.inputTextPrompt,
image_index: 0,
resolution: [
parseInt(guiOptions.Resolution.split('x')[0]),
parseInt(guiOptions.Resolution.split('x')[1]),
parseInt(guiOptions.Resolution.split('x')[2])
],
cameras: interpolatedCameras.map(cam => ({
position: [cam.position.x, cam.position.y, cam.position.z],
quaternion: [cam.quaternion.w, cam.quaternion.x, cam.quaternion.y, cam.quaternion.z],
fx: 0.5 / Math.tan(0.5 * cam.fov * Math.PI / 180) * parseInt(guiOptions.Resolution.split('x')[1]),
fy: 0.5 / Math.tan(0.5 * cam.fov * Math.PI / 180) * parseInt(guiOptions.Resolution.split('x')[1]),
cx: inputImageBase64 && inputImageResolution
? 0.5 * inputImageResolution.width
: 0.5 * parseInt(guiOptions.Resolution.split('x')[2]),
cy: inputImageBase64 && inputImageResolution
? 0.5 * inputImageResolution.height
: 0.5 * parseInt(guiOptions.Resolution.split('x')[1]),
}))
};
fetchWithAuth(requestUrl, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
mode: 'cors',
body: JSON.stringify({ data: [JSON.stringify(requestData)] })
})
.then(response => response.json())
.then(data => {
// Gradio 总是返回 event_id，需要使用 SSE 获取生成结果
if (!data || !data.event_id) {
throw new Error('Invalid Gradio response format - no event_id');
}
return fetchWithAuth(guiOptions.BackendAddress + `/gradio_api/call/gradio_generate/${data.event_id}`)
.then(resp => {
if (!resp.ok) throw new Error(`HTTP error! status: ${resp.status}`);
return resp.text();
})
.then(sseText => {
const lines = sseText.split('\n');
let eventType = null;
let dataContent = null;
for (const line of lines) {
if (line.startsWith('event: ')) eventType = line.substring(7);
else if (line.startsWith('data: ')) dataContent = line.substring(6);
}
if (eventType !== 'complete' || !dataContent) {
throw new Error('Gradio SSE response not complete or missing data');
}
const resultData = JSON.parse(dataContent);
if (!resultData || resultData.length === 0) {
throw new Error('Invalid Gradio generation result format');
}
const responseData = JSON.parse(resultData[0]);
if (!responseData.success) {
throw new Error('Gradio generation failed: ' + (responseData.error || 'Unknown error'));
}
// 显示生成信息
showGenerationInfo(responseData.generation_time, responseData.file_size);
showDownloadProgress();
updateStatus('Downloading generated scene...', cameraParams.length);
// 下载文件：调用 download_file 获取下载 event_id，然后通过 SSE 拿到 URL，再实际下载
return fetchWithAuth(guiOptions.BackendAddress + '/gradio_api/call/download_file', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ data: [responseData.file_id] })
})
.then(r => r.json())
.then(downloadEvent => {
return fetchWithAuth(guiOptions.BackendAddress + `/gradio_api/call/download_file/${downloadEvent.event_id}`)
.then(r => {
if (!r.ok) throw new Error(`HTTP error! status: ${r.status}`);
return r.text();
})
.then(downloadSseText => {
const lines = downloadSseText.split('\n');
let eventType = null;
let dataContent = null;
for (const line of lines) {
if (line.startsWith('event: ')) eventType = line.substring(7);
else if (line.startsWith('data: ')) dataContent = line.substring(6);
}
if (eventType !== 'complete' || !dataContent) {
throw new Error('Gradio download SSE response not complete or missing data');
}
const fileData = JSON.parse(dataContent);
if (!fileData || fileData.length === 0 || !fileData[0].url) {
throw new Error('Invalid file data format from Gradio');
}
return fileData[0].url;
});
});
})
.then(fileUrl => {
return fetchWithAuth(fileUrl).then(response => {
if (!response.ok) throw new Error(`HTTP error! status: ${response.status}`);
const contentLength = response.headers.get('content-length');
const total = parseInt(contentLength || '0', 10);
let loaded = 0;
const reader = response.body.getReader();
const chunks = [];
function pump() {
return reader.read().then(({ done, value }) => {
if (done) return new Blob(chunks);
chunks.push(value);
loaded += value.length;
if (total) updateProgressBar((loaded / total) * 100);
return pump();
});
}
return pump().then(blob => {
// 保存blob供后续下载使用
currentDownloadedBlob = blob;
const url = URL.createObjectURL(blob);
return { url, __deleteAfterDownloadFileId: (typeof responseData !== 'undefined' ? responseData.file_id : null) };
});
});
});
})
.then(data => {
if (data && data.url) {
updateStatus('Loading 3D scene...', cameraParams.length);
if (instructionSplat) {
scene.remove(instructionSplat);
console.log('Instruction splat removed');
}
const GeneratedSplat = new SplatMesh({ url: data.url });
scene.add(GeneratedSplat);
currentGeneratedSplat = GeneratedSplat;
console.log('3D scene loaded successfully!');
updateStatus('Scene generated successfully!', cameraParams.length);
// 启用下载按钮
if (window.downloadController) {
window.downloadController.enable();
}
hideDownloadProgress();
showLoading(false);
// 通知后端删除文件（如果有 file_id）
if (data.__deleteAfterDownloadFileId) {
fetchWithAuth(guiOptions.BackendAddress + '/delete/' + data.__deleteAfterDownloadFileId, { method: 'POST' })
.then(() => console.log('Delete notify sent'))
.catch(err => console.warn('Delete notify failed', err));
}
}
})
.catch(error => {
console.error('Error:', error);
updateStatus('Generation failed: ' + error.message, cameraParams.length);
hideDownloadProgress();
showLoading(false);
});
}
};
// =========================
// Examples & JSON load utils
// =========================
const EXAMPLE_FILES = Array.from({ length: 8 }, (_, i) => `examples/${i + 1}.json`);
function processJsonLoad(jsonData, loadTrajectoryOnlyProvided) {
// Determine mode and reset flag if coming from global
const loadTrajectoryOnly = !!loadTrajectoryOnlyProvided;
// Clear existing cameras and interpolated splats
cameraSplats.forEach(splat => scene.remove(splat));
cameraSplats.length = 0;
cameraParams.length = 0;
interpolatedCamerasSplats.forEach(splat => scene.remove(splat));
interpolatedCamerasSplats.length = 0;
try {
const imagePrompt = jsonData.image_prompt || jsonData.imagePrompt || null;
const textPrompt = jsonData.text_prompt || jsonData.textPrompt || "";
const cameras = jsonData.cameras || [];
const resolution = jsonData.resolution || [16, 480, 640];
const imageIndex = jsonData.image_index || jsonData.imageIndex || 0;
// Prompt/image only for full load
if (!loadTrajectoryOnly && imagePrompt) {
inputImageBase64 = imagePrompt;
const previewArea = document.getElementById('image-preview-area');
const previewImg = document.getElementById('preview-img');
if (previewImg && previewArea) {
previewImg.src = inputImageBase64;
previewArea.style.display = 'block';
}
}
if (!loadTrajectoryOnly) {
guiOptions.inputTextPrompt = textPrompt;
guiOptions.imageIndex = imageIndex;
syncGuiPromptControls();
}
// Infer FOV from first camera fy for full load
if (!loadTrajectoryOnly && Array.isArray(resolution) && resolution.length === 3 && cameras && cameras.length > 0) {
const H = resolution[1];
const firstCam = cameras[0];
if (firstCam && typeof firstCam.fy === 'number' && isFinite(firstCam.fy) && firstCam.fy > 0) {
const inferredFov = 2 * Math.atan(0.5 * H / firstCam.fy) * 180 / Math.PI;
guiOptions.FOV = inferredFov;
}
}
if (cameras && cameras.length > 0) {
let jsonFirstPosition = null;
let jsonFirstQuaternion = null;
const firstCameraData = cameras[0];
if (Array.isArray(firstCameraData?.position) && firstCameraData.position.length === 3) {
jsonFirstPosition = new THREE.Vector3(
firstCameraData.position[0],
firstCameraData.position[1],
firstCameraData.position[2]
);
}
if (Array.isArray(firstCameraData?.quaternion) && firstCameraData.quaternion.length === 4) {
jsonFirstQuaternion = new THREE.Quaternion(
firstCameraData.quaternion[1],
firstCameraData.quaternion[2],
firstCameraData.quaternion[3],
firstCameraData.quaternion[0]
);
}
cameras.forEach((cameraData) => {
let aspect = 1.0;
if (Array.isArray(resolution) && resolution.length === 3) {
aspect = resolution[2] / resolution[1];
} else {
aspect = guiOptions.Resolution.split('x')[2] / guiOptions.Resolution.split('x')[1];
}
let fov = 60;
if (loadTrajectoryOnly) {
fov = guiOptions.FOV;
} else {
if (Array.isArray(resolution) && resolution.length === 3 && typeof cameraData.fy === 'number' && cameraData.fy > 0) {
const H = resolution[1];
fov = 2 * Math.atan(0.5 * H / cameraData.fy) * 180 / Math.PI;
guiOptions.FOV = fov;
} else {
fov = guiOptions.FOV;
}
}
const cam = new THREE.PerspectiveCamera(fov, aspect);
if (Array.isArray(cameraData.position) && cameraData.position.length === 3) {
cam.position.set(cameraData.position[0], cameraData.position[1], cameraData.position[2]);
}
if (Array.isArray(cameraData.quaternion) && cameraData.quaternion.length === 4) {
cam.quaternion.set(
cameraData.quaternion[1],
cameraData.quaternion[2],
cameraData.quaternion[3],
cameraData.quaternion[0]
);
}
if (jsonFirstPosition && jsonFirstQuaternion) {
const jsonFirstC2W = new THREE.Matrix4();
jsonFirstC2W.compose(jsonFirstPosition, jsonFirstQuaternion, new THREE.Vector3(1, 1, 1));
const currentC2W = new THREE.Matrix4();
currentC2W.compose(cam.position, cam.quaternion, new THREE.Vector3(1, 1, 1));
const refW2C = jsonFirstC2W.clone().invert();
const relativeTransform = refW2C.clone().multiply(currentC2W);
const fixedC2W = new THREE.Matrix4();
fixedC2W.compose(new THREE.Vector3(0, 0, 0), new THREE.Quaternion(0, 0, 0, 1), new THREE.Vector3(1, 1, 1));
const newTransform = fixedC2W.clone().multiply(relativeTransform);
const newPosition = new THREE.Vector3();
const newQuaternion = new THREE.Quaternion();
const newScale = new THREE.Vector3();
newTransform.decompose(newPosition, newQuaternion, newScale);
cam.position.copy(newPosition);
cam.quaternion.copy(newQuaternion);
}
cam.fov = fov;
cam.aspect = aspect;
cam.updateProjectionMatrix();
const cameraSplat = createCameraSplat(cam);
cameraSplats.push(cameraSplat);
cameraParams.push({
position: cam.position.clone(),
quaternion: cam.quaternion.clone(),
fov: cam.fov,
aspect: cam.aspect,
});
scene.add(cameraSplat);
});
}
if (!loadTrajectoryOnly && Array.isArray(resolution) && resolution.length === 3) {
guiOptions.Resolution = `${resolution[0]}x${resolution[1]}x${resolution[2]}`;
}
if (loadTrajectoryOnly) {
updateStatus(`Trajectory loaded: ${jsonData.cameras ? jsonData.cameras.length : 0} cameras`, cameraParams.length);
} else {
updateStatus(`JSON loaded: ${jsonData.cameras ? jsonData.cameras.length : 0} cameras`, cameraParams.length);
}
} catch (error) {
console.error("JSON data processing error:", error);
}
}
async function renderExamples() {
const grid = document.getElementById('examples-grid');
if (!grid) return;
grid.innerHTML = '';
const items = [];
for (const path of EXAMPLE_FILES) {
try {
const resp = await fetch(path);
if (!resp.ok) continue;
const data = await resp.json();
const thumb = data.image_prompt || data.imagePrompt || null;
items.push({ path, data, thumb });
} catch (_) { /* ignore */ }
}
items.slice(0, 10).forEach((item, idx) => {
const div = document.createElement('div');
div.className = 'example-item';
div.title = item.path;
if (item.thumb) {
const img = document.createElement('img');
img.src = item.thumb;
div.appendChild(img);
} else {
const label = document.createElement('div');
label.className = 'label';
label.textContent = `Example ${idx + 1}`;
div.appendChild(label);
}
div.addEventListener('click', () => {
// Full JSON load behavior
processJsonLoad(item.data, false);
});
grid.appendChild(div);
});
}
// Initialize renderer and GUI when DOM is ready
function initializeApp() {
try {
// Debug layout
console.log('Initializing app...');
console.log('Center panel:', document.querySelector('.center-panel'));
console.log('GUI container:', document.getElementById('gui-container'));
console.log('Right panel:', document.querySelector('.right-panel'));
initializeRenderer();
initializeGUI();
console.log('App initialization complete');
} catch (error) {
console.error('App initialization failed:', error);
}
}
if (document.readyState === 'loading') {
document.addEventListener('DOMContentLoaded', () => { initializeApp(); renderExamples(); });
} else {
initializeApp();
renderExamples();
}
// =========================
// Utility & Core Functions
// =========================
// 计算插值相机
function interpolateTwoCameras(startCamera, endCamera, _t) {
const interpolatedCamera = new THREE.PerspectiveCamera(startCamera.fov, startCamera.aspect);
// 如果_t接近0，直接使用startCamera
if (_t < 1e-6) {
interpolatedCamera.position.copy(startCamera.position);
interpolatedCamera.quaternion.copy(startCamera.quaternion);
}
// 如果_t接近1，直接使用endCamera
else if (_t > 1 - 1e-6) {
interpolatedCamera.position.copy(endCamera.position);
interpolatedCamera.quaternion.copy(endCamera.quaternion);
}
// 否则进行插值
else {
interpolatedCamera.position.copy(startCamera.position).lerp(endCamera.position, _t);
interpolatedCamera.quaternion.copy(startCamera.quaternion).slerp(endCamera.quaternion, _t);
}
return interpolatedCamera;
}
function interpolateCameras(cameras, M) {
const interpolatedCameras = [];
if (cameras.length === 0) {
return interpolatedCameras;
}
if (cameras.length === 1) {
// 如果只有一个相机，重复使用它
for (let i = 0; i < M; i++) {
interpolatedCameras.push(cameras[0]);
}
return interpolatedCameras;
}
for (let i = 0; i < M; i++) {
const t = i / (M - 1);
const startIndex = Math.min(Math.floor(t * (cameras.length - 1)), cameras.length - 2);
const endIndex = startIndex + 1;
const startCamera = cameras[startIndex];
const endCamera = cameras[endIndex];
const _t = t * (cameras.length - 1) - startIndex;
const interpolatedCamera = interpolateTwoCameras(startCamera, endCamera, _t);
interpolatedCameras.push(interpolatedCamera);
}
return interpolatedCameras;
}
// 强制同步文本与索引控件显示
function syncGuiPromptControls() {
try {
if (window.inputTextPromptController) {
window.inputTextPromptController.setValue(guiOptions.inputTextPrompt);
if (typeof window.inputTextPromptController.updateDisplay === 'function') {
window.inputTextPromptController.updateDisplay();
}
}
if (window.imageIndexController) {
window.imageIndexController.setValue(guiOptions.imageIndex);
if (typeof window.imageIndexController.updateDisplay === 'function') {
window.imageIndexController.updateDisplay();
}
}
} catch (e) {
console.debug('syncGuiPromptControls error:', e);
}
// 再尝试一次，防止控件尚未就绪
requestAnimationFrame(() => {
try {
if (window.inputTextPromptController && typeof window.inputTextPromptController.updateDisplay === 'function') {
window.inputTextPromptController.updateDisplay();
}
if (window.imageIndexController && typeof window.imageIndexController.updateDisplay === 'function') {
window.imageIndexController.updateDisplay();
}
} catch (_) {}
});
}
// 创建立方体的splat可视化
function createCubeSplat(size = 0.1, pointColor = [1, 1, 1]) {
const cubeSplat = new SplatMesh({
constructSplats: (splats) => {
const NUM_SPLATS_PER_EDGE = 1000;
const scales = new THREE.Vector3().setScalar(0.002);
const quaternion = new THREE.Quaternion();
const opacity = 1;
const color = new THREE.Color(...pointColor);
// 立方体的8个顶点
const halfSize = size / 2;
const vertices = [
new THREE.Vector3(-halfSize, -halfSize, -halfSize), // 0: 左下后
new THREE.Vector3(halfSize, -halfSize, -halfSize), // 1: 右下后
new THREE.Vector3(halfSize, halfSize, -halfSize), // 2: 右上后
new THREE.Vector3(-halfSize, halfSize, -halfSize), // 3: 左上后
new THREE.Vector3(-halfSize, -halfSize, halfSize), // 4: 左下前
new THREE.Vector3(halfSize, -halfSize, halfSize), // 5: 右下前
new THREE.Vector3(halfSize, halfSize, halfSize), // 6: 右上前
new THREE.Vector3(-halfSize, halfSize, halfSize), // 7: 左上前
];
// 立方体的12条边
const edges = [
[0, 1], [1, 2], [2, 3], [3, 0], // 后面4条边
[4, 5], [5, 6], [6, 7], [7, 4], // 前面4条边
[0, 4], [1, 5], [2, 6], [3, 7], // 连接前后4条边
];
// 为每条边生成splat点
for (let i = 0; i < edges.length; i++) {
const start = vertices[edges[i][0]];
const end = vertices[edges[i][1]];
for (let j = 0; j < NUM_SPLATS_PER_EDGE; j++) {
const point = new THREE.Vector3().lerpVectors(start, end, j / NUM_SPLATS_PER_EDGE);
splats.pushSplat(point, scales, quaternion, opacity, color);
}
}
},
});
return cubeSplat;
}
// 创建相机锥体的splat可视化
function createCameraSplat(camera, pointColor = [1, 1, 1]) {
const cameraSplat = new SplatMesh({
constructSplats: (splats) => {
const NUM_SPLATS_PER_EDGE = 1000;
const LENGTH_PER_EDGE = 0.1;
const center = new THREE.Vector3();
const scales = new THREE.Vector3().setScalar(0.001);
const quaternion = new THREE.Quaternion();
const opacity = 1;
const color = new THREE.Color(...pointColor);
const H = 1000;
const W = 1000 * camera.aspect;
const fx = 0.5 * H / Math.tan(0.5 * camera.fov * Math.PI / 180);
const fy = 0.5 * H / Math.tan(0.5 * camera.fov * Math.PI / 180);
const xt = (0 - W / 2 + 0.5) / fy;
const xb = (W - W / 2 + 0.5) / fy;
const yl = - (0 - H / 2 + 0.5) / fx;
const yr = - (H - H / 2 + 0.5) / fx;
const lt = new THREE.Vector3(xt * LENGTH_PER_EDGE, yl * LENGTH_PER_EDGE, -1 * LENGTH_PER_EDGE);
const rt = new THREE.Vector3(xt * LENGTH_PER_EDGE, yr * LENGTH_PER_EDGE, -1 * LENGTH_PER_EDGE);
const lb = new THREE.Vector3(xb * LENGTH_PER_EDGE, yl * LENGTH_PER_EDGE, -1 * LENGTH_PER_EDGE);
const rb = new THREE.Vector3(xb * LENGTH_PER_EDGE, yr * LENGTH_PER_EDGE, -1 * LENGTH_PER_EDGE);
const lines = [
[center, lt], [center, rt], [center, lb], [center, rb],
[lt, rt], [lt, lb], [rt, rb], [lb, rb],
];
for (let i = 0; i < lines.length; i++) {
for (let j = 0; j < NUM_SPLATS_PER_EDGE; j++) {
const point = new THREE.Vector3().lerpVectors(lines[i][0], lines[i][1], j / NUM_SPLATS_PER_EDGE);
splats.pushSplat(point, scales, quaternion, opacity, color);
}
}
},
});
cameraSplat.quaternion.copy(camera.quaternion);
cameraSplat.position.copy(camera.position);
return cameraSplat;
}
// 生成相机轨迹模板
function generateCameraTrajectory(trajectoryType) {
if (trajectoryType === "Manual") {
updateStatus('Manual mode: Use Space to record cameras manually', cameraParams.length);
return;
}
// 检查FOV是否已固定
if (!fixGenerationFOV) {
updateStatus('Error: Please fix FOV first before generating trajectory', cameraParams.length);
return;
}
// 获取最后一个相机作为参考点
let referenceCamera;
if (cameraParams.length > 0) {
// 使用最后一个已保存的相机作为参考
const lastCamera = cameraParams[cameraParams.length - 1];
referenceCamera = new THREE.PerspectiveCamera(guiOptions.FOV, camera.aspect);
referenceCamera.position.copy(lastCamera.position);
referenceCamera.quaternion.copy(lastCamera.quaternion);
referenceCamera.updateProjectionMatrix();
} else {
// 如果没有已保存的相机，从原点开始
referenceCamera = new THREE.PerspectiveCamera(guiOptions.FOV, camera.aspect);
referenceCamera.position.set(0, 0, 0);
referenceCamera.quaternion.set(0, 0, 0, 1);
referenceCamera.updateProjectionMatrix();
}
// 对于orbit，计算所有相机围绕的目标点
// 始终使用当前参考相机（最后一个相机）来计算目标点
let orbitTarget = null;
let orbitStartCamera = null;
if (trajectoryType.includes("Orbit") && cameraParams.length > 0) {
// 使用最后一个相机作为参考，计算其前方1单位的目标点
orbitStartCamera = cameraParams[cameraParams.length - 1];
orbitTarget = orbitStartCamera.position.clone().add(
new THREE.Vector3(0, 0, -1).applyQuaternion(orbitStartCamera.quaternion)
);
console.log("Orbit target calculated from last camera:", orbitStartCamera.position, "->", orbitTarget);
} else if (trajectoryType.includes("Orbit")) {
// 如果没有已记录的相机，使用当前相机作为参考
orbitStartCamera = referenceCamera;
orbitTarget = referenceCamera.position.clone().add(
new THREE.Vector3(0, 0, -1).applyQuaternion(referenceCamera.quaternion)
);
console.log("Orbit target calculated from current camera:", referenceCamera.position, "->", orbitTarget);
}
const cameras = [];
const stepSize = 0.5; // 移动步长
const totalOrbitAngle = 15 * Math.PI / 180; // 总共15度轨道
// 根据轨迹类型生成相机
let numCameras = 1; // 默认生成1个相机
if (trajectoryType.includes("Orbit")) {
numCameras = 1; // 轨道运动生成1个相机
console.log(`Generating ${numCameras} orbit camera with total angle ${totalOrbitAngle * 180 / Math.PI}°`);
}
for (let i = 1; i <= numCameras; i++) {
const newCamera = new THREE.PerspectiveCamera(guiOptions.FOV, camera.aspect);
let position, quaternion;
switch (trajectoryType) {
case "Move Forward":
position = referenceCamera.position.clone();
position.z -= stepSize;
quaternion = referenceCamera.quaternion.clone();
break;
case "Move Backward":
position = referenceCamera.position.clone();
position.z += stepSize;
quaternion = referenceCamera.quaternion.clone();
break;
case "Move Left":
position = referenceCamera.position.clone();
position.x -= stepSize;
quaternion = referenceCamera.quaternion.clone();
break;
case "Move Right":
position = referenceCamera.position.clone();
position.x += stepSize;
quaternion = referenceCamera.quaternion.clone();
break;
case "Orbit Left 15°":
const radius = 1.0;
// 左轨道：-15度
const angle = -totalOrbitAngle;
console.log(`Camera ${i}: angle=${angle * 180 / Math.PI}° (Left)`);
// 计算轨道位置：在参考相机的局部坐标系中
const localOrbitPos = new THREE.Vector3(
Math.sin(angle) * radius,
0,
Math.cos(angle) * radius
);
// 转换到世界坐标系：旋转到参考相机的方向
const worldOrbitPos = localOrbitPos.applyQuaternion(orbitStartCamera.quaternion);
// 最终位置：从目标点出发，加上世界坐标系中的偏移
position = orbitTarget.clone().add(worldOrbitPos);
console.log(`Orbit Left camera ${i}: localPos=`, localOrbitPos, 'worldPos=', worldOrbitPos, 'finalPos=', position);
// 朝向：所有相机都朝向圆心（目标点）
const lookDirection = orbitTarget.clone().sub(position).normalize();
quaternion = new THREE.Quaternion().setFromUnitVectors(
new THREE.Vector3(0, 0, -1),
lookDirection
);
console.log(`Orbit Left camera ${i}: quaternion=`, quaternion);
break;
case "Orbit Right 15°":
const radiusRight = 1.0;
// 右轨道：+15度
const angleRight = totalOrbitAngle;
console.log(`Camera ${i}: angle=${angleRight * 180 / Math.PI}° (Right)`);
// 计算轨道位置：在参考相机的局部坐标系中
const localOrbitPosRight = new THREE.Vector3(
Math.sin(angleRight) * radiusRight,
0,
Math.cos(angleRight) * radiusRight
);
// 转换到世界坐标系：旋转到参考相机的方向
const worldOrbitPosRight = localOrbitPosRight.applyQuaternion(orbitStartCamera.quaternion);
// 最终位置：从目标点出发，加上世界坐标系中的偏移
position = orbitTarget.clone().add(worldOrbitPosRight);
console.log(`Orbit Right camera ${i}: localPos=`, localOrbitPosRight, 'worldPos=', worldOrbitPosRight, 'finalPos=', position);
// 朝向：所有相机都朝向圆心（目标点）
const lookDirectionRight = orbitTarget.clone().sub(position).normalize();
quaternion = new THREE.Quaternion().setFromUnitVectors(
new THREE.Vector3(0, 0, -1),
lookDirectionRight
);
console.log(`Orbit Right camera ${i}: quaternion=`, quaternion);
break;
default:
position = referenceCamera.position.clone();
quaternion = referenceCamera.quaternion.clone();
}
newCamera.position.copy(position);
newCamera.quaternion.copy(quaternion);
newCamera.updateProjectionMatrix();
cameras.push(newCamera);
}
// 添加相机到场景
cameras.forEach(cam => {
const cameraSplat = createCameraSplat(cam);
cameraSplats.push(cameraSplat);
cameraParams.push({
position: cam.position.clone(),
quaternion: cam.quaternion.clone(),
fov: cam.fov,
aspect: cam.aspect,
});
scene.add(cameraSplat);
});
updateStatus(`Added ${cameras.length} cameras using ${trajectoryType} trajectory`, cameraParams.length);
console.log(`Added ${cameras.length} cameras using ${trajectoryType} trajectory`);
}
// =========================
// GUI & User Interaction
// =========================
// GUI 控件 - 延迟初始化
function initializeGUI() {
const guiContainer = document.getElementById('gui-container');
if (guiContainer && !gui) {
// Clear any existing content
guiContainer.innerHTML = '';
gui = new GUI({ title: "FlashWorld Controls", container: guiContainer });
console.log('GUI initialized in container:', guiContainer);
// Step 1: Configure Generation Settings
const step1Folder = gui.addFolder('1. Configure Settings');
step1Folder.add(guiOptions, "BackendAddress").name("Backend Address");
step1Folder.add(guiOptions, "HF_TOKEN").name("HF Token");
// FOV和Resolution控制器，初始时启用
const fovController = step1Folder.add(guiOptions, "FOV", 0, 120, 1).name("FOV").onChange((value) => {
camera.fov = value;
camera.updateProjectionMatrix();
});
const resolutionController = step1Folder.add(guiOptions, "Resolution", supportedResolutions.map(
r => `${r.frame}x${r.height}x${r.width}`
)).name("Resolution (NxHxW)").onChange((value) => {
updateCanvasSize();
});
// Expose for programmatic updates after JSON load
window.fovController = fovController;
window.resolutionController = resolutionController;
// Fix Configuration按钮放在最下面
const fixGenerationFOVController = step1Folder.add(guiOptions, "fixGenerationFOV").name("Fix Configuration");
step1Folder.open();
// Step 2: Set Up Camera Path
const step2Folder = gui.addFolder('2. Set Up Camera Path');
// Camera trajectory templates
const trajectoryFolder = step2Folder.addFolder('Camera Trajectory');
// 轨迹模式选择
const trajectoryModeController = trajectoryFolder.add(guiOptions, "trajectoryMode", [
"Manual",
"Template",
"JSON"
]).name("Trajectory Mode");
// 模板类型选择（仅在Template模式下可用）
const templateTypeController = trajectoryFolder.add(guiOptions, "templateType", [
"Move Forward",
"Move Backward",
"Move Left",
"Move Right",
"Orbit Left 15°",
"Orbit Right 15°"
]).name("Template Type");
// 生成轨迹按钮
const generateTrajectoryController = trajectoryFolder.add(guiOptions, "generateTrajectory").name("Generate Trajectory");
// 加载/保存JSON轨迹按钮
const loadTrajectoryController = trajectoryFolder.add(guiOptions, "LoadTrajectoryFromJson").name("Load from JSON");
const saveTrajectoryController = trajectoryFolder.add(guiOptions, "saveTrajectoryToJson").name("Save Trajectory");
// 初始状态：禁用保存按钮（相机数量不够）
saveTrajectoryController.disable();
// 清理相机按钮
const clearAllCamerasController = trajectoryFolder.add(guiOptions, "clearAllCameras").name("Clear All Cameras");
// 初始状态：禁用所有轨迹相关控件
templateTypeController.disable();
generateTrajectoryController.disable();
loadTrajectoryController.disable();
// 轨迹模式变化时的处理
trajectoryModeController.onChange((value) => {
if (value === "Manual") {
templateTypeController.disable();
generateTrajectoryController.disable();
loadTrajectoryController.disable();
} else if (value === "Template") {
templateTypeController.enable();
if (fixGenerationFOV) {
generateTrajectoryController.enable();
} else {
generateTrajectoryController.disable();
}
loadTrajectoryController.disable();
} else if (value === "JSON") {
templateTypeController.disable();
generateTrajectoryController.disable();
if (fixGenerationFOV) {
loadTrajectoryController.enable();
} else {
loadTrajectoryController.disable();
}
}
});
// 当Configuration固定时启用轨迹生成
const originalFixFOV = guiOptions.fixGenerationFOV;
guiOptions.fixGenerationFOV = () => {
originalFixFOV();
// Fix Configuration后禁用所有Step 1的控制器
fovController.disable();
resolutionController.disable();
// 根据当前轨迹模式启用相应控件
if (guiOptions.trajectoryMode === "Template") {
generateTrajectoryController.enable();
} else if (guiOptions.trajectoryMode === "JSON") {
loadTrajectoryController.enable();
}
updateStatus('Configuration fixed. You can now generate camera trajectory.', cameraParams.length);
};
trajectoryFolder.open();
step2Folder.add(guiOptions, "VisualizeCameraSplats").name("Visualize Cameras").onChange((value) => {
cameraSplats.forEach(cameraSplat => {
cameraSplat.opacity = value ? 1 : 0;
});
});
step2Folder.add(guiOptions, "VisualizeInterpolatedCameras").name("Visualize Interpolated Cameras").onChange((value) => {
interpolatedCamerasSplats.forEach(interpolatedCameraSplat => {
interpolatedCameraSplat.opacity = value ? 1 : 0;
});
});
// Store controllers globally so they can be accessed from guiOptions
window.fixGenerationFOVController = fixGenerationFOVController;
window.saveTrajectoryController = saveTrajectoryController;
// Step 3: Add Scene Prompts
const step3Folder = gui.addFolder('3. Add Scene Prompts');
step3Folder.add(guiOptions, "inputImagePrompt").name("Input Image Prompt");
const inputTextPromptController = step3Folder.add(guiOptions, "inputTextPrompt").name("Input Text Prompt");
const imageIndexController = step3Folder.add(guiOptions, "imageIndex", 0, 24, 1).name("Image Index");
// Expose for programmatic updates after JSON load
window.inputTextPromptController = inputTextPromptController;
window.imageIndexController = imageIndexController;
// Step 4: Generate Your Scene
const step4Folder = gui.addFolder('4. Generate Scene');
step4Folder.add(guiOptions, "generate").name("Generate!");
const downloadController = step4Folder.add(guiOptions, "downloadGeneratedFile").name("Download SPZ File");
downloadController.disable(); // Initially disabled
step4Folder.open();
// Store download controller globally for enabling/disabling
window.downloadController = downloadController;
// Step 5: Trajectory Playback (Scrubber)
const step5Folder = gui.addFolder('5. Trajectory Playback');
step5Folder.add(guiOptions, 'playbackT', 0, 1, 0.001).name('Scrub (0-1)').onChange((value) => {
// 首次拖动时记录用户相机状态，便于需要时恢复（可选）
if (!userCameraState) {
userCameraState = {
position: camera.position.clone(),
quaternion: camera.quaternion.clone(),
fov: camera.fov
};
}
setCameraByScrub(value);
updateStatus(`Scrubbing trajectory: t=${value.toFixed(3)}`, cameraParams.length);
});
step5Folder.open();
// Step 6: Load/Save All JSON
const step6Folder = gui.addFolder('6. JSON (All-in-one)');
step6Folder.add(guiOptions, "LoadAllFromJson").name("Load All from JSON");
step6Folder.add(guiOptions, "SaveAllToJson").name("Save All to JSON");
step6Folder.open();
}
}
// =========================
// File Input (Image Prompt)
// =========================
const fileInput = document.querySelector("#file-input");
fileInput.onchange = (event) => {
const files = event.target.files;
if (!files || files.length === 0) return;
Array.from(files).forEach(file => {
const reader = new FileReader();
reader.onload = function(e) {
console.log("Loaded image:", file.name, e.target.result);
// 获取当前Resolution
let resolutionStr = guiOptions.Resolution;
let [n, h, w] = resolutionStr.split('x').map(Number);
// 加载图片
const img = new Image();
img.onload = function() {
window.inputImageResolution = { width: img.width, height: img.height };
console.log("Input image resolution:", window.inputImageResolution);
// 计算center crop参数
let scaleH = h / img.height;
let scaleW = w / img.width;
let scale = Math.max(scaleH, scaleW);
let newW = Math.round(w / scale);
let newH = Math.round(h / scale);
let sx = Math.floor((img.width - newW) / 2);
let sy = Math.floor((img.height - newH) / 2);
// 创建canvas进行center crop和resize
const canvas = document.createElement('canvas');
canvas.width = w;
canvas.height = h;
const ctx = canvas.getContext('2d');
ctx.drawImage(
img,
sx, sy, newW, newH, // source crop
0, 0, w, h // destination size
);
// 得到裁剪+缩放后的base64（用于后端）
inputImageBase64 = canvas.toDataURL('image/png');
// 更新预览为裁剪后的图
const previewArea = document.getElementById('image-preview-area');
const previewImg = document.getElementById('preview-img');
if (previewImg && previewArea) {
previewImg.src = inputImageBase64;
previewArea.style.display = 'block';
}
// 记录传给后端的分辨率（已对齐为当前Resolution）
window.inputImageResolution = { width: w, height: h };
console.log("Cropped and resized image to:", w, h);
};
img.src = e.target.result;
};
reader.readAsDataURL(file);
});
};
// =========================
// File Input (JSON)
// =========================
// const jsonInput = document.querySelector("#json-input");
// jsonInput.onchange = (event) => {
// const files = event.target.files;
// if (!files || files.length === 0) return;
// const file = files[0];
// const reader = new FileReader();
// reader.onload = function(e) {
// let jsonData;
// try {
// jsonData = JSON.parse(e.target.result);
// } catch (error) {
// alert("JSON parsing error: " + error);
// console.error("JSON parsing error:", error);
// return;
// }
// // 清理所有已有的相机和插值相机
// cameraSplats.forEach(splat => scene.remove(splat));
// cameraSplats.length = 0;
// cameraParams.length = 0;
// interpolatedCamerasSplats.forEach(splat => scene.remove(splat));
// interpolatedCamerasSplats.length = 0;
// try {
// // 兼容不同命名的字段
// const imagePrompt = jsonData.image_prompt || jsonData.imagePrompt || null;
// const textPrompt = jsonData.text_prompt || jsonData.textPrompt || "";
// const cameras = jsonData.cameras || [];
// const resolution = jsonData.resolution || [16, 480, 640];
// const imageIndex = jsonData.image_index || jsonData.imageIndex || 0;
// console.log("Loaded JSON data:", {
// imagePrompt,
// textPrompt,
// cameras: cameras.length,
// resolution,
// imageIndex
// });
// // 处理图像提示
// if (imagePrompt) {
// inputImageBase64 = imagePrompt;
// console.log("Image prompt loaded");
// }
// // 设置文本提示
// guiOptions.inputTextPrompt = textPrompt;
// guiOptions.imageIndex = imageIndex;
// // 处理相机数据
// if (cameras && cameras.length > 0) {
// cameras.forEach(cameraData => {
// // 解析分辨率
// let aspect = 1.0;
// if (Array.isArray(resolution) && resolution.length === 3) {
// aspect = resolution[2] / resolution[1];
// }
// const cam = new THREE.PerspectiveCamera(60, aspect);
// // 设置位置
// if (Array.isArray(cameraData.position) && cameraData.position.length === 3) {
// cam.position.set(cameraData.position[0], cameraData.position[1], cameraData.position[2]);
// }
// // 设置四元数
// if (Array.isArray(cameraData.quaternion) && cameraData.quaternion.length === 4) {
// // 注意：three.js的顺序是 (x, y, z, w)
// cam.quaternion.set(
// cameraData.quaternion[1],
// cameraData.quaternion[2],
// cameraData.quaternion[3],
// cameraData.quaternion[0]
// );
// }
// // 设置FOV和焦距
// if (cameraData.fx && cameraData.fy) {
// // fx, fy: 焦距（像素）
// // 假设分辨率为 [N, H, W]
// // fov = 2 * atan(0.5 * H / fy) * 180 / PI
// // 但原代码用的是 fx
// let fov = 60;
// if (cameraData.fx) {
// fov = 2 * Math.atan(0.5 / cameraData.fx) * 180 / Math.PI;
// }
// cam.fov = fov;
// cam.aspect = cameraData.fx / cameraData.fy;
// cam.updateProjectionMatrix();
// }
// const cameraSplat = createCameraSplat(cam);
// cameraSplats.push(cameraSplat);
// cameraParams.push({
// position: cam.position.clone(),
// quaternion: cam.quaternion.clone(),
// fov: cam.fov,
// aspect: cam.aspect,
// });
// scene.add(cameraSplat);
// });
// console.log(`Loaded ${cameras.length} cameras`);
// }
// // 设置分辨率
// if (Array.isArray(resolution) && resolution.length === 3) {
// guiOptions.Resolution = `${resolution[0]}x${resolution[1]}x${resolution[2]}`;
// }
// alert("JSON loaded");
// } catch (error) {
// alert("JSON data processing error: " + error);
// console.error("JSON data processing error:", error);
// }
// };
// reader.readAsText(file);
// };
const jsonInput = document.querySelector("#json-input");
jsonInput.onchange = (event) => {
const files = event.target.files;
if (!files || files.length === 0) return;
const file = files[0];
const reader = new FileReader();
reader.onload = function(e) {
let jsonData;
try {
jsonData = JSON.parse(e.target.result);
} catch (error) {
console.error("JSON parsing error:", error);
return;
}
const loadTrajectoryOnly = !!window.loadTrajectoryOnly;
window.loadTrajectoryOnly = false;
processJsonLoad(jsonData, loadTrajectoryOnly);
};
reader.readAsText(file);
};
// =========================
// Keyboard Controls
// =========================
document.addEventListener('keypress', (event) => {
if (event.code === 'Space') {
if (!fixGenerationFOV) {
updateStatus('Please fix Generation FOV first', cameraParams.length);
return;
}
// 记录当前相机的pose
const new_camera = camera.clone();
new_camera.fov = guiOptions.FOV;
new_camera.aspect = guiOptions.Resolution.split('x')[2] / guiOptions.Resolution.split('x')[1];
new_camera.updateProjectionMatrix();
const cameraSplat = createCameraSplat(new_camera);
cameraSplats.push(cameraSplat);
cameraParams.push({
position: new_camera.position.clone(),
quaternion: new_camera.quaternion.clone(),
fov: new_camera.fov,
aspect: new_camera.aspect,
});
scene.add(cameraSplat);
updateStatus(`Camera ${cameraParams.length} recorded. Press Space for more or Generate!`, cameraParams.length);
console.log(new_camera.getFocalLength());
}
});
// =========================
// Scene Initialization
// =========================
// Initialize status
updateStatus('FlashWorld initialized. Configure settings to begin.', 0);
// Add cube splat to the scene
let instructionSplat = createCubeSplat(0.25, [1, 1, 1]);
instructionSplat.position.set(0, 0, -1);
scene.add(instructionSplat);
console.log('Cube splat added to scene');
// Handle window resize
window.addEventListener('resize', () => {
console.log('Window resized, updating canvas...');
// Update canvas size based on current resolution
updateCanvasSize();
});
// =========================
// Animation Loop
// =========================
let lastTime = null;
renderer.setAnimationLoop(function animate(time) {
const deltaTime = time - (lastTime || time);
lastTime = time;
// Rotate the cube splat
if (instructionSplat) {
// instructionSplat.rotation.x += deltaTime / 4000; // 绕X轴旋转
instructionSplat.rotation.y += deltaTime / 5000; // 绕Y轴旋转
instructionSplat.rotation.z += deltaTime / 6000; // 绕Z轴旋转
}
// No active playback loop; scrubber directly sets camera
controls.update(camera);
renderer.render(scene, camera);
});
</script>
</body>
</html> |