What's a fast way to test if 2 rectangles are intersecting?    A search on the internet came up with this one-liner (WOOT!), but I don't understand how to write it in Javascript, it seems to be written in an ancient form of C++.  struct {...
I am writing a script with Fabric.js to zoom an image at the current mouse position. I have made some progress but there is an error somewhere.  Case 1: Keep the mouse at one point and zoom with the mouse wheel.  Result: Works perfectly, image zooms...
I'm doing some research for a JavaScript project where the performance of drawing simple primitives (i.e. lines) is by far the top priority.    The answers to this question provide a great list of JS graphics libraries.  While I realize that the...
My jcrop code  $(function(){  // Create variables (in this scope) to hold the API and image size var jcrop_api,     boundx,     boundy,      // Grab some information about the preview pane     $preview = $('#preview-pane'),     $pcnt = $('...
I am trying to create a background for my website that uses canvases to draw stuff, get the data URL of it and set it as the background-image property of an element. The method works, but I can't find a good way to draw a cloud on the canvas. Oth...
Is it possible to create such "tilted menu" (please see below) using JavaScript ?  Provided that I would like them to be "relative" to resize appropriately to a screen size....
I am trying to make a basic track with JavaScript and HTML 5 like the image below.    Is it possible to do this programmatically or should I use an image to loop it? The curve of the track will be changing.   I'm thinking about using a PNG image...
So I have an SVG file created in Inkscape embedded in a webpage, and I'd like it to rotate slowly. I've tried using Javascript and inserting animation commands directly into the SVG, but nothing works. I don't want to load in an entire JS...
I'm trying to render a truncated icosahedron like above with clickable zones using Three.js.   I found the code for a regular icosahedron   var t = ( 1 + Math.sqrt( 5 ) ) / 2;  var vertices = [     [ -1,  t,  0 ], [  1, t, 0 ], [ -1, -t,  0 ],...
I need to sync trackball controls and camera with the directional light.  My case scenario: Init an empty scene with camera, lights and controls. Load a bufferGeometry obj, get its centroid and set camera and controls position and target relative to...

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