What is the best way to showcase a QR code on a mesh using three.js?

I utilized the QRcode library available at to try and showcase it on a mesh object as a texture using the following code:

var qrcode = new QRCode( "test", {
    text: "http://jindo.dev.naver.com/collie",
    width: 128,
    height: 128,
    colorDark : "#000000",
    colorLight : "#ffffff",
    correctLevel : QRCode.CorrectLevel.H
});
...
var cuboidTexture = THREE.ImageUtils.loadTexture( qrcode );
cuboidTexture.needsUpdate = true;

However, I encountered this error:

Uncaught TypeError: Cannot call method 'appendChild' of null qrcode.min.js:1

Am I doing something incorrectly? Or is it not possible to use a QRcode as a texture in this manner?

EDIT: Even when using the qrcode.js library, the same error persists:

Uncaught TypeError: Cannot call method 'appendChild' of null qrcode.js:359
javascriptthree.jsqr-code

Answer №1

The following code snippet demonstrates how to create a cuboid with texture mapping in Three.js:

const cuboidTexture = new THREE.Texture( test );
cuboidTexture.needsUpdate = true;

const material = new THREE.MeshBasicMaterial( { map: cuboidTexture } );

Answer №2

The specified ID in the first argument ("test") should correspond to the DOM element where you want the QR-Code to appear.

Example of HTML:

<div id="foo"></div>

Sample JavaScript code:

var qrcode = new QRCode("foo");

To learn more, visit

Note: The documentation for the example using the ID "test" is lacking.

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