Basic example showcasing ThreeCSG.js

Currently, I am delving into the world of ThreeCSG.js, a JavaScript Constructive Solid Geometry front-end for Three.js. To kickstart my learning journey, I decided to replicate a basic example that I stumbled upon online. I attempted to save a local copy of an impressive little demonstration of Constructive Solid Geometry in JavaScript created by Chandler Prall using ThreeCSG.js from this website:

However, upon saving a local version of the page (via Chrome's Save as webpage function), I quickly discovered that the checkerboard texture file was missing. An error message popped up in the JavaScript console:

Failed to load resource: net::ERR_FILE_NOT_FOUND

The error included the full path to the absent jpg file. After manually downloading the image and placing it where Chrome expected to find it, a new error emerged:

The cross-origin image at file:///C:/tmp/images/checkerboard.jpg may not be loaded.

I am currently using Chrome 43.0.2357.134 on Windows 7 64-bit. Similar issues arose while using Internet Explorer. In an attempt to resolve the problem, I upgraded to the latest version of three.min.js but encountered syntax errors. It seems that the example utilizes an outdated version of threecsg.js, causing compatibility issues with the newer API.

Could someone please guide me on what steps I might be overlooking?

javascriptgoogle-chromethree.jscsg

Answer №1

The image directory is not being downloaded, causing an error to be thrown in the code.

var floorTexture = new THREE.ImageUtils.loadTexture( 'images/checkerboard.jpg' );

To resolve this issue, you must manually download the image and host it on a web server in order for the HTML page to make an AJAX request to render the image.

Answer №2

The issue you're encountering is known as Cross-Origin Resource Sharing (CORS). To resolve this, you'll need to adjust your browser settings following the instructions in this GitHub Wiki article:

Check out How to run things locally

It's not recommended to simply paste links without providing additional information, as the steps may vary depending on the browser you're using.

An alternative solution is to set up a local server, which is also explained in the second link provided.

Answer №3

In the case that you're utilizing Chrome solely for testing purposes, there exists a convenient Chrome extension known as Allow-Control-Allow-Origin which can be utilized.

Answer №4

The primary issue lies in fetching the file locally instead of from the server. To resolve this, consider using an IDE such as NetBeans and running it as a Web Application for optimal performance.

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