Canvas 3d JS Library

WebGL made easy!
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    • Tutorial #1: WebGL Browsers
    • Tutorial #2: A simple scene
    • Tutorial #3: Callback
    • Tutorial #4: Models
    • Tutorial #5: Light effects
    • Tutorial #6: Picking
    • Tutorial #7: Materials
    • Tutorial #8: Particle Systems
    • Tutorial #9: Camera Basics
    • Tutorial #10: Advanced FreeCamera
    • Tutorial #11: OrbitCamera
    • Tutorial #12: Advanced Camera Functions
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I wasn’t able to find one, and was about to start writing my own but luckily Shaver helped me out. The Mochikit library has a unit testing framework they use for themselves – Mochitest. This is also one of the unit testing frameworks in Mozilla, but the one in their tree is heavily customised for Mozilla. I just downloaded the Mochikit distribution and ripped the tests out of it.. roghly speaking.Then I took the tests Mark wrote for JSUnit and ported them over. That was reasonably easy. Here they are:unit testsThe hard part now will be writing a full set of tests. I will lazily wait for the meeting to get an idea of what it is exactly that we’d be testing.To run the tests one needs to open c3dapidev/mochikit/tests/index.html Apparently there are some new security settings in Firefox 3 that make JSUnit not work.  I managed to get Mark’s sample unittest to run on Safari, but not Firefox 3. Mark, I think, only tried it with Firefox 2. Am looking for a new javascript unit testing framework. After finishing exams I am back  and have finished version 2 of the Typing Game.  I added vertical movement to the cubes.  As a side note, points are deducted for allowing cubes to fly off the screen. To determine if a cube was off the screen I had to manually populate the screen with a column of cubes to determine how many it would take until I was off the screen.  The value is hard coded in so if the dimensions of the canvas or the position of the camera were to change my cubes would disappear early or late. My demo works with the 0.2 release of the Canvas3D API and that is what it is using on this website.  I plan on upgrading my FireFox to the latest and greatest and see if all is well. My next goals are between fixing the 3d graph or adding radio buttons to the Typing Game that would allow someone to change the difficulty on the fly.  Demonstrating that the 3d canvas can interact with elements on the web page. I decided to take on writing the code for loading models and textures in the 1.1 context since Andrew already coded 2.0.  While trying to get it to work, I did notice some bugs that I’ll have to add to the bug list, things like the texture not displaying unless the object moves. I went through a possible work flow of a user creating a model and importing it.  I created a torus in Blender and slapped on a texture leaving the default UV coordinates.  I exported the vertices, UV’s and faces to a text file.  Here is the point where we’ll have to come up with some sort of conversion or export because I was left with a bunch of vertices, UV’s and faces which I had to convert to javascript arrays using my text editor. Here is the final result, a textured torus.  Actually, this is my second attempt.  My first try was the Blender monkey, sadly it didn’t work. untitled.jpg Since the end of April there has been 3 updates to the canvas 3d add-on.  Firstly I’d like to say that I’m very happy with these updates.  I had problems running canvas3d on my home computer with an ati video card and one of the updates have fixed it.  I am no longer restricted to just working on my mac.  This change of course means that our library is now available to more people which is definitely really important. The most recent change also changed how the add-on is enabled.  Previous to the May 28th release of canvas 3d, the add-on is either enabled or disabled for all web sites.  For the May 28th release, each site can be added to an allow/disallow list individually.  This of course means that my tutorial became outdated and changes had to be made. it seems like much is happening with canvas 3d in the next little while.  It certainly addresses many of the issues that we were facing earlier.  However, we will have to be more on our toes with keeping the site up to date with the add-on.

Videos

Demos

  • Asteroids-3D
  • RTS Prototype
  • Particle Systems Demo
  • Cross-Browser Orbiter
  • Mocap Demo With Spheres
  • Google Maps-3D

C3DL Development News

A spec change that keeps coming back to haunt me

At some point, the way firefox handles keyboard events changed. I’m not sure exactly when it happened, all I know is that it broke how I was dealing with keyboard interaction on almost every demo I’ve written (for example,the mocap demo and MotionView). When I wrote the demos, the keydown event would be fired once, [...]

Release 2.2

The 2.2 Release of the Canvas 3D Library includes a number of new features, updates to old features and fixes for several bugs along with the requisite changes to meet the evolving WebGL spec. Some of the things included (in no particular order) are: Better picking code. The ability to swap textures as a scene [...]

Tutorials

  • Tutorial #1: WebGL Browsers
  • Tutorial #2: A simple scene
  • Tutorial #3: Callback
  • Tutorial #4: Models
  • Tutorial #5: Light effects
  • Tutorial #6: Picking
  • Tutorial #7: Materials
  • Tutorial #8: Particle Systems
  • Tutorial #9: Camera Basics
    • Tutorial9-YawPitchRoll
  • Tutorial #10: Advanced FreeCamera
  • Tutorial #11: OrbitCamera
  • Tutorial #12: Advanced Camera Functions

Documentation

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C3DL Development News

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  • That depends on what... - peter
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Canvas 3d JS Library

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The Canvas 3d JS Library and Demos found on this website are licenced under the MIT License

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