127 lines
3.9 KiB
JavaScript
Executable File
127 lines
3.9 KiB
JavaScript
Executable File
#!/usr/bin/env node
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/**
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* Optimiert Falukant-Charakter- und Haus-GLBs mit Draco + Textur-Optimierung.
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* Ausgabe: *_opt.glb im selben Verzeichnis.
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* Voraussetzung: npm install (@gltf-transform/cli als Dev-Dep)
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*
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* Aufruf: npm run optimize-models
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* Optional können MODEL_SOURCE_DIR und MODEL_OUTPUT_DIR gesetzt werden, um
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* genau einen Modellordner aus dem separaten YourPart3Assets-Repository zu
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* verarbeiten.
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*/
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import fs from 'fs';
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import { spawnSync } from 'child_process';
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import { fileURLToPath } from 'url';
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import path from 'path';
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const __dirname = path.dirname(fileURLToPath(import.meta.url));
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const modelsRoot = path.join(__dirname, '..', 'models-src', '3d', 'falukant');
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const publicModelsRoot = path.join(__dirname, '..', 'public', 'models', '3d', 'falukant');
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const cli = path.join(__dirname, '..', 'node_modules', '.bin', 'gltf-transform');
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function listSourceModels(sourceDir) {
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return fs.readdirSync(sourceDir)
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.filter((file) => file.endsWith('.glb'))
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.filter((file) => !file.endsWith('_opt.glb'))
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.sort((a, b) => a.localeCompare(b));
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}
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function ensureOutputDir(outputDir) {
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fs.mkdirSync(outputDir, { recursive: true });
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}
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function removeStaleOptimizedModels(outputDir) {
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if (!fs.existsSync(outputDir)) {
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return;
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}
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const cleanAllModels = process.env.CLEAN_MODEL_OUTPUT === 'true';
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for (const file of fs.readdirSync(outputDir)) {
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if (file.endsWith('_opt.glb') || (cleanAllModels && file.endsWith('.glb'))) {
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fs.unlinkSync(path.join(outputDir, file));
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}
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}
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}
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function optimizeModelDirectory({ name, sourceDir, outputDir, required = false }) {
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if (!fs.existsSync(sourceDir)) {
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if (required) {
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console.error(`Source directory not found: ${sourceDir}`);
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process.exitCode = 1;
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}
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return;
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}
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ensureOutputDir(outputDir);
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removeStaleOptimizedModels(outputDir);
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const models = listSourceModels(sourceDir);
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if (models.length === 0) {
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console.log(`No ${name} GLBs found.`);
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return;
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}
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console.log(`Optimize Falukant ${name} GLBs (Draco + texture 1024)\n`);
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const isHouse = name === 'house' || name === 'houses' || path.basename(sourceDir) === 'houses';
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for (const f of models) {
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const input = path.join(sourceDir, f);
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const out = f.replace(/\.glb$/, '_opt.glb');
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const output = path.join(outputDir, out);
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try {
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const result = spawnSync(
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'node',
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[
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cli, 'optimize', input, output,
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'--compress', 'draco',
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'--texture-size', '1024',
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// Draco reduces download size, while simplify prevents high-poly
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// scans from exhausting browser GPU memory. Houses are small
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// previews, so they get a deliberately stronger reduction.
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'--simplify-ratio', isHouse ? '0.05' : '0.35',
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'--simplify-error', isHouse ? '0.02' : '0.01',
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],
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{
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stdio: 'inherit',
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cwd: path.join(__dirname, '..'),
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}
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);
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if (result.status !== 0) {
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throw new Error(`gltf-transform exited with ${result.status}`);
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}
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} catch (e) {
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console.error(`Failed: ${f}`);
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process.exitCode = 1;
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}
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}
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}
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const customSourceDir = process.env.MODEL_SOURCE_DIR;
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const customOutputDir = process.env.MODEL_OUTPUT_DIR;
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if (Boolean(customSourceDir) !== Boolean(customOutputDir)) {
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console.error('MODEL_SOURCE_DIR and MODEL_OUTPUT_DIR must be set together.');
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process.exit(1);
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}
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if (customSourceDir) {
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optimizeModelDirectory({
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name: 'custom',
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sourceDir: path.resolve(customSourceDir),
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outputDir: path.resolve(customOutputDir),
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required: true,
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});
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} else {
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optimizeModelDirectory({
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name: 'character',
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sourceDir: path.join(modelsRoot, 'characters'),
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outputDir: path.join(publicModelsRoot, 'characters'),
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required: true,
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});
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optimizeModelDirectory({
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name: 'house',
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sourceDir: path.join(modelsRoot, 'houses'),
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outputDir: path.join(publicModelsRoot, 'houses'),
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});
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}
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