├── .gitignore ├── doc ├── gltf.png └── cesium.png ├── .jshintrc ├── routes ├── index.js └── convert.js ├── working └── .gitignore ├── .settings ├── org.eclipse.core.resources.prefs └── com.eclipsesource.jshint.ui.prefs ├── collada2gltf ├── mac │ └── collada2gltf └── win32 │ └── collada2gltf.exe ├── config.json ├── server.js ├── nodemon.json ├── lib ├── Verbose.js ├── createGuid.js ├── Errors.js ├── nconf.js └── collada2gltf.js ├── .project ├── app.js ├── test ├── convert │ └── index.js └── data │ └── box.dae ├── package.json ├── README.md └── LICENSE.md /.gitignore: -------------------------------------------------------------------------------- 1 | **/node_modules 2 | .DS_Store 3 | Thumbs.db -------------------------------------------------------------------------------- /doc/gltf.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/CesiumGS/collada2gltf-web-service/HEAD/doc/gltf.png -------------------------------------------------------------------------------- /.jshintrc: -------------------------------------------------------------------------------- 1 | { 2 | "node": true, 3 | "predef": [ 4 | "describe", 5 | "it" 6 | ] 7 | } -------------------------------------------------------------------------------- /doc/cesium.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/CesiumGS/collada2gltf-web-service/HEAD/doc/cesium.png -------------------------------------------------------------------------------- /routes/index.js: -------------------------------------------------------------------------------- 1 | "use strict"; 2 | 3 | module.exports = { 4 | convert : require('./convert') 5 | }; -------------------------------------------------------------------------------- /working/.gitignore: -------------------------------------------------------------------------------- 1 | # Ignore everything in this directory 2 | * 3 | # Except this file 4 | !.gitignore -------------------------------------------------------------------------------- /.settings/org.eclipse.core.resources.prefs: -------------------------------------------------------------------------------- 1 | eclipse.preferences.version=1 2 | encoding/.jshintrc=UTF-8 3 | -------------------------------------------------------------------------------- /collada2gltf/mac/collada2gltf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/CesiumGS/collada2gltf-web-service/HEAD/collada2gltf/mac/collada2gltf -------------------------------------------------------------------------------- /config.json: -------------------------------------------------------------------------------- 1 | { 2 | "host" : "localhost", 3 | "port" : 3000, 4 | "verbose" : true, 5 | "uploadLimit" : "10mb" 6 | } -------------------------------------------------------------------------------- /.settings/com.eclipsesource.jshint.ui.prefs: -------------------------------------------------------------------------------- 1 | eclipse.preferences.version=1 2 | included=//*.js 3 | projectSpecificOptions=true 4 | -------------------------------------------------------------------------------- /collada2gltf/win32/collada2gltf.exe: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/CesiumGS/collada2gltf-web-service/HEAD/collada2gltf/win32/collada2gltf.exe -------------------------------------------------------------------------------- /server.js: -------------------------------------------------------------------------------- 1 | var app = require('./app'); 2 | var nconf = require('./lib/nconf'); 3 | 4 | app.listen(nconf.get('port'), function() { 5 | console.log('Server started: http://%s:%s', nconf.get('host'), nconf.get('port')); 6 | }); -------------------------------------------------------------------------------- /nodemon.json: -------------------------------------------------------------------------------- 1 | { 2 | "verbose": true, 3 | "ignore": [ 4 | ".git", 5 | "doc", 6 | "working", 7 | "README.md", 8 | "LICENSE.md" 9 | ], 10 | "watch": [ 11 | "**/*.js", 12 | "config.json" 13 | ] 14 | } -------------------------------------------------------------------------------- /routes/convert.js: -------------------------------------------------------------------------------- 1 | "use strict"; 2 | var collada2gltf = require('./../lib/collada2gltf.js'); 3 | 4 | module.exports.convert = function(req, res, next) { 5 | collada2gltf(req.body, function(err, gltf) { 6 | if (err) { return next(err); } 7 | 8 | res.setHeader('Content-Type', 'application/json'); 9 | res.send(gltf); 10 | }); 11 | }; 12 | -------------------------------------------------------------------------------- /lib/Verbose.js: -------------------------------------------------------------------------------- 1 | var nconf = require('./nconf'); 2 | 3 | var verbose = !!nconf.get('verbose'); 4 | var f = function(arg) {}; 5 | 6 | // Timing, log, and error messages based on the verbose flag in config.json 7 | module.exports = { 8 | log : verbose ? function(message) { console.log(message); } : f, 9 | error : verbose ? function(message) { console.error(message); } : f, 10 | time : verbose ? function(label) { console.time(label); } : f, 11 | timeEnd : verbose ? function(label) { console.timeEnd(label); } : f 12 | }; -------------------------------------------------------------------------------- /lib/createGuid.js: -------------------------------------------------------------------------------- 1 | "use strict"; 2 | 3 | module.exports = createGuid; 4 | 5 | //From https://github.com/AnalyticalGraphicsInc/cesium/blob/master/Source/Core/createGuid.js 6 | function createGuid() { 7 | // http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript 8 | return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) { 9 | var r = Math.random() * 16 | 0; 10 | var v = c === 'x' ? r : (r & 0x3 | 0x8); 11 | return v.toString(16); 12 | }); 13 | } -------------------------------------------------------------------------------- /lib/Errors.js: -------------------------------------------------------------------------------- 1 | var util = require('util'); 2 | 3 | // Module based on https://github.com/alexyoung/nodeinpractice/tree/master/listings/web/error-handling 4 | 5 | function HTTPError() { 6 | Error.call(this, arguments); 7 | } 8 | 9 | util.inherits(HTTPError, Error); 10 | 11 | function Conversion(message) { 12 | HTTPError.call(this); 13 | Error.captureStackTrace(this, arguments.callee); 14 | this.statusCode = 500; 15 | this.message = message; 16 | this.name = 'Conversion'; 17 | } 18 | util.inherits(Conversion, HTTPError); 19 | 20 | module.exports = { 21 | HTTPError: HTTPError, 22 | Conversion: Conversion 23 | }; -------------------------------------------------------------------------------- /.project: -------------------------------------------------------------------------------- 1 | 2 | 3 | collada2gltf-web-service 4 | 5 | 6 | 7 | 8 | 9 | com.eclipsesource.jshint.ui.builder 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 1426521625155 19 | 20 | 30 21 | 22 | org.eclipse.ui.ide.multiFilter 23 | 1.0-name-matches-false-false-node_modules 24 | 25 | 26 | 27 | 1426521625161 28 | 29 | 30 30 | 31 | org.eclipse.ui.ide.multiFilter 32 | 1.0-name-matches-false-false-working 33 | 34 | 35 | 36 | 37 | -------------------------------------------------------------------------------- /lib/nconf.js: -------------------------------------------------------------------------------- 1 | var nconf = require('nconf'); 2 | 3 | // This module wraps nconf to make sure it is initialized before being used 4 | 5 | // Override options in this order: config.json < environment variables < command-line arguments 6 | nconf.argv() 7 | .env() 8 | .file({ file: 'config.json' }); 9 | 10 | // Set the path to the collada2gltf executable based on the platform unless 11 | // a path was already defined in config.json 12 | if (!nconf.get('collada2gltfPath')) { 13 | if (process.platform === 'darwin') { 14 | nconf.set('collada2gltfPath', 'collada2gltf/mac/collada2gltf'); 15 | } else if (process.platform === 'win32') { 16 | nconf.set('collada2gltfPath', 'collada2gltf/win32/collada2gltf.exe'); 17 | } else { 18 | console.error('Only Mac and Windows builds of collada2gltf are included. Build from source for your platform: https://github.com/KhronosGroup/glTF'); 19 | process.exit(1); 20 | } 21 | } 22 | 23 | module.exports = nconf; -------------------------------------------------------------------------------- /app.js: -------------------------------------------------------------------------------- 1 | var express = require('express'); 2 | var bodyParser = require('body-parser'); 3 | var compression = require('compression'); 4 | var routes = require('./routes'); 5 | var nconf = require('./lib/nconf'); 6 | var Verbose = require('./lib/Verbose'); 7 | 8 | var app = express(); 9 | 10 | // Requests post the .dae file using Content-Type: text/plain 11 | // The upload filesize limit is defined in config.json 12 | app.use(bodyParser.text({ 13 | limit : nconf.get('uploadLimit') 14 | })); 15 | 16 | // compress 17 | app.use(compression()); 18 | 19 | // Custom middleware fore enabling CORS. From http://enable-cors.org/server_expressjs.html 20 | app.use(function(req, res, next) { 21 | res.header("Access-Control-Allow-Origin", "*"); 22 | res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept"); 23 | next(); 24 | }); 25 | 26 | // Custom middleware for handling errors 27 | app.use(function(err, req, res, next) { 28 | Verbose.error(err.stack); 29 | 30 | res.status(err.statusCode || 500); 31 | res.format({ 32 | json: function() { 33 | res.send(err); 34 | } 35 | }); 36 | }); 37 | 38 | // Map, for example, localhost:3000/convert, to the function that does the conversion. 39 | // There is also app.get() for requests that pass parameters with GET. 40 | app.post('/convert', routes.convert.convert); 41 | 42 | module.exports = app; -------------------------------------------------------------------------------- /test/convert/index.js: -------------------------------------------------------------------------------- 1 | "use strict"; 2 | var fs = require('fs'); 3 | var assert = require('assert'); 4 | var request = require('supertest'); 5 | var app = require('./../../app'); 6 | 7 | describe('convert', function(){ 8 | it('convert a COLLADA model', function(done) { 9 | fs.readFile('test/data/box.dae', 'utf8', function(err, dae) { 10 | if (err) { return done(err); } 11 | 12 | request(app) 13 | .post('/convert') 14 | .set('Content-Type', 'text/plain') 15 | .send(dae) 16 | .expect('Content-Type', /json/) 17 | .expect(200) 18 | .end(function(err, res){ 19 | if (err) throw err; 20 | 21 | // Quick and dirty check for glTF 22 | assert(res.body.accessors); 23 | assert(res.body.bufferViews); 24 | assert(res.body.buffers); 25 | assert(res.body.materials); 26 | assert(res.body.meshes); 27 | assert(res.body.nodes); 28 | assert(res.body.programs); 29 | assert(res.body.scene); 30 | assert(res.body.scenes); 31 | assert(res.body.shaders); 32 | assert(res.body.techniques); 33 | done(); 34 | }); 35 | }); 36 | }); 37 | }); -------------------------------------------------------------------------------- /package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "collada2gltf-web-service", 3 | "version": "0.0.1", 4 | "description": "Simple web service to convert 3D models from COLLADA to glTF using COLLADA2GLTF.", 5 | "license": "Apache-2.0", 6 | "author": { 7 | "name": "Patrick Cozzi", 8 | "email": "pcozzi@agi.com", 9 | "url": "https://twitter.com/pjcozzi" 10 | }, 11 | "keywords": [ 12 | "collada", 13 | "gltf" 14 | ], 15 | "homepage": "https://github.com/AnalyticalGraphicsInc/collada2gltf-web-service", 16 | "repository": { 17 | "type": "git", 18 | "url": "git@github.com:AnalyticalGraphicsInc/collada2gltf-web-service.git" 19 | }, 20 | "bugs": { 21 | "url": "https://github.com/AnalyticalGraphicsInc/collada2gltf-web-service/issues" 22 | }, 23 | "scripts": { 24 | "test": "mocha test/**/*.js", 25 | "jshint": "jshint app.js server.js lib routes test" 26 | }, 27 | "directories": {}, 28 | "dependencies": { 29 | "body-parser": "^1.12.0", 30 | "compression": "^1.4.3", 31 | "express": "^4.12.2", 32 | "nconf": "^0.7.1", 33 | "rimraf": "^2.3.2" 34 | }, 35 | "devDependencies": { 36 | "jshint": "^2.6.0", 37 | "mocha": "^2.1.0", 38 | "nodemon": "^1.3.7", 39 | "supertest": "^0.15.0" 40 | }, 41 | "engines": { 42 | "node": ">=0.10.x" 43 | }, 44 | "jshintConfig": { 45 | "node": true, 46 | "predef": [ 47 | "describe", 48 | "it" 49 | ] 50 | } 51 | } 52 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # collada2gltf-web-service 2 | 3 |

4 | 5 |

6 | 7 | Simple web service to convert 3D models from COLLADA to glTF using [COLLADA2GLTF](https://github.com/KhronosGroup/glTF). 8 | 9 | ## Overview 10 | 11 | This is a code sample that is a starting point for a Node.js web service that converts COLLADA models to 12 | glTF. This version just converts a .dae file to a .gltf with embedded geometry, animations, skins, and shaders. It does not handle textures. 13 | 14 | ## Install 15 | 16 | Clone this repo. Install [Node.js](http://nodejs.org/). From this repo's root directory, run: 17 | ``` 18 | npm install 19 | ``` 20 | 21 | ## Usage 22 | 23 | Start the server: 24 | ``` 25 | npm start 26 | ``` 27 | 28 | Invoke the web service by issuing an HTTP request and providing the COLLADA model with POST: 29 | ``` 30 | curl -X POST -H "Content-Type:text/plain" -d @test/data/box.dae localhost:3000/convert 31 | ``` 32 | 33 | A few settings can be changed by modifying [config.json](config.json). This is loaded using [nconf](https://www.npmjs.com/package/nconf) so environment variables and command-line arguments can override this. 34 | 35 | ## Development and Testing 36 | 37 | To automatically restart the server during development, install and run [nodemon](http://nodemon.io/): 38 | ``` 39 | npm install nodemon -g 40 | nodemon server.js 41 | ``` 42 | 43 | Install and run [JSHint](http://jshint.com/): 44 | ``` 45 | npm install jshint -g 46 | npm run jshint 47 | ``` 48 | 49 | Install [mocha](http://mochajs.org/) and run the tests: 50 | ``` 51 | npm install mocha -g 52 | npm test 53 | ``` 54 | 55 | ## COLLADA2GLTF builds 56 | 57 | Build are in the [collada2gltf](collada2gltf) directory. They are currently version 0.8 from [here](https://github.com/KhronosGroup/glTF/wiki/Converter-builds). 58 | 59 | ## Resources 60 | 61 | * [9 uses for cURL worth knowing](http://httpkit.com/resources/HTTP-from-the-Command-Line/) 62 | * [nodeinpractice](https://github.com/alexyoung/nodeinpractice) - book and sample code 63 | 64 | *** 65 | 66 | Developed by AGI, founders of the Cesium WebGL engine. 67 |

68 | 69 |

70 | -------------------------------------------------------------------------------- /lib/collada2gltf.js: -------------------------------------------------------------------------------- 1 | "use strict"; 2 | var fs = require('fs'); 3 | var path = require('path'); 4 | var child_process = require('child_process'); 5 | var rimraf = require('rimraf'); 6 | var Errors = require('./Errors'); 7 | var Verbose = require('./Verbose'); 8 | var createGuid = require('./createGuid'); 9 | var nconf = require('./nconf'); 10 | 11 | module.exports = collada2gltf; 12 | 13 | function returnError(err, dirPath, message, callback) { 14 | rimraf(dirPath, function(err) { 15 | if (err) { Verbose.error(err.message); } 16 | 17 | process.nextTick(function() { 18 | Verbose.timeEnd('total time'); 19 | callback(new Errors.Conversion(message + ': ' + err.message), undefined); 20 | }); 21 | }); 22 | 23 | return undefined; 24 | } 25 | 26 | function collada2gltf(collada, callback) { 27 | // 1. Create a temporary directory 28 | // 2. Write the input COLLADA file to the directory 29 | // 3. Run collada2gltf with -e to embed resources 30 | // 4. Read the generated glTF file 31 | // -> Remove the temporary directory on success or failure 32 | 33 | Verbose.time('total time'); 34 | 35 | var dirPath = path.join('working', createGuid()); 36 | fs.mkdir(dirPath, undefined, function(err) { 37 | if (err) { return returnError(err, dirPath, '1/5 mkdir', callback); } 38 | 39 | var daePath = path.join(dirPath, 'input.dae'); 40 | var gltfPath = path.join(dirPath, 'output.gltf'); 41 | 42 | fs.writeFile(daePath, collada, function(err) { 43 | if (err) { return returnError(err, dirPath, '2/5 writeFile', callback); } 44 | 45 | Verbose.time('collada2gltf time'); 46 | 47 | child_process.execFile(nconf.get('collada2gltfPath'), [ 48 | '-f', daePath, 49 | '-o', gltfPath, 50 | '-e'], 51 | function(err, stdout, stderr) { 52 | Verbose.timeEnd('collada2gltf time'); 53 | Verbose.log('collada2gltf stdout: ' + stdout); 54 | Verbose.log('collada2gltf stderr: ' + stderr); 55 | 56 | if (err) { return returnError(err, dirPath, '3/5 execFile', callback); } 57 | 58 | fs.readFile(gltfPath, 'utf8', function(err, data){ 59 | if (err) { return returnError(err, dirPath, '4/5 readFile', callback); } 60 | 61 | rimraf(dirPath, function(err) { 62 | if (err) { return returnError(err, dirPath, '5/5 rimraf', callback); } 63 | 64 | process.nextTick(function() { 65 | Verbose.timeEnd('total time'); 66 | callback(undefined, data); 67 | }); 68 | }); 69 | }); 70 | }); 71 | }); 72 | }); 73 | } 74 | -------------------------------------------------------------------------------- /test/data/box.dae: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | modo 801 [Build 77509], Microsoft Windows 7 Service Pack 1 (6.1.7601 Service Pack 1) 6 | Plug-in: [Build 77509]; Use Absolute Path: No; Merge Reference Items: No; Save Hidden Items: No; Save Cameras: No; Save Lights: No; Save Locators: Yes; Save Triangles as Triangles: Yes; Order Vertex Maps Alphabetically: Yes; Bake Matrices: No; Save Vertex Normals: Yes; Save UV Texture Coordinates: Yes; Save Vertex Colors: No; Save Vertex Weights: No; Save Animation: Yes; Sample Animation: No; Sample Animation Start: 0; Sample Animation End: 120; Save modo Profile: No; Save Maya Profile: No; Save 3ds Max Profile: No; Formatted Arrays: No; 7 | file:///C:/Users/Branden/Creative%20Cloud%20Files/03-2015%20Cesium%20Test%20Models/CesiumBoxTest.lxo 8 | 9 | 2015-03-04T16:39:37Z 10 | 2015-03-04T16:39:37Z 11 | Z_UP 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 0.8 0 0 1 25 | 26 | 27 | 0.2 0.2 0.2 1 28 | 29 | 30 | 256 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | -0.5 -0.5 -0.5 -0.5 0.5 -0.5 0.5 0.5 -0.5 0.5 -0.5 -0.5 -0.5 -0.5 0.5 -0.5 0.5 0.5 0.5 0.5 0.5 0.5 -0.5 0.5 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 0 0 1 0 -1 0 1 0 0 0 1 0 -1 0 0 0 0 -1 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 0.25 1 0.25 0.666667 0.5 1 0.5 0.666667 0 0.666667 0.25 0.333333 0 0.333333 0.5 0.333333 0.75 0.666667 0.75 0.333333 1 0.666667 1 0.333333 0.25 0 0.5 0 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 |

4 0 0 7 0 1 5 0 2 6 0 3 5 0 2 7 0 1 7 1 1 4 1 4 3 1 5 0 1 6 3 1 5 4 1 4 6 2 3 7 2 1 2 2 7 3 2 5 2 2 7 7 2 1 5 3 8 6 3 3 1 3 9 2 3 7 1 3 9 6 3 3 4 4 10 5 4 8 0 4 11 1 4 9 0 4 11 5 4 8 0 5 12 1 5 13 3 5 5 2 5 7 3 5 5 1 5 13

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