Obj2GlbConverter

Create a glb for Windows Mixed Reality 3D Icons using an implementation of AnalyticalGraphicsInc's obj2gltf library.

Steps to recreate and usage

Prerequisite: You need to have Node.js installed https://nodejs.org/en/

1. Open Command Prompt (or Nodejs Command Prompt) in the folder you want to build the app (e.g. navigate to a newly created folder in File Explorer and enter "cmd" in the address bar)
2. Enter npm init and follow through the 10 app initialization prompts (hit enter for each step to use the defaults)
3. Once you're back at the prompt, enter npm install --save obj2gltf to intall the https://github.com/AnalyticalGraphicsInc/obj2gltf library to that app
4. Add a new file to the folder and name it index.js (you can use File Explorer for this, right click > New > Text Document)
5. Open index.js in your preferred code editor
6. Enter the following script into index.js

// ---- Dependencies ---- //
// Converter library, see here for more https://github.com/AnalyticalGraphicsInc/obj2gltf
var obj2gltf = require('obj2gltf');

// Imported so that we can save the output buffer to a file. See here for more: https://nodejs.org/api/fs.html#fs_fs_writefile_file_data_options_callback
var fs = require('fs');


// ---- Main Logic ---- //

var inputFile = "Breach.obj";
var outputFile = "Breach.glb";

// Options for the converter library, see here for other flags: https://github.com/AnalyticalGraphicsInc/obj2gltf#usage
var options = {
    binary: true,
    output: outputFile
}

// Calls the converter library with options
obj2gltf(inputFile, options)
    .then(function (glbBuffer) {
        
        // Write the buffer to a file
        fs.writeFile(outputFile, glbBuffer, (error) => {
            if (error) throw err;
            
            console.log("Exported successful! " + "Saved as:" + outputFile + ", " + glbBuffer.length + " bytes");
        });
    });

7. Place the obj file you want to convert in the same folder as index.js
8. Adjust the values of inputFile to be the name of your file and outputFile to be the glb version, then save and close index.js.
9. Now, you're ready to convert! Back in the command window, enter the following command: node index.js, that will run your script, which converts the model and saves it to the file.

Done! Find the file now saved in the same folder as the Go ahead and open it in View 3D to see the result