Archive for June, 2010

Wednesday, June 23rd, 2010

Wow. IE9 just set it in motion.

Canvas 2D is now really on the horizon for all browsers. IE9 preview now supports the <canvas> tag and all canvas element APIs and most Canvas 2D context APIs and attributes!

Features Available

  • Canvas
    • In the latest Platform Preview we support all Canvas element APIs and most Canvas 2D Context APIs and attributes.

Features Partially Implemented

  • Canvas
    • globalCompositeOperation
      • The latest Platform Preview does not include support for the globalCompositeOperation attribute.
    • DOM Exceptions
      • The latest Platform Preview does not include support for Canvas 2D Context DOM Exceptions.
    • drawFocusRing()
      • The latest Platform Preview does not include support for the drawFocusRing() Focus management API.

This is pretty amazing even though it has been hinted at by other news (previously from AMD).  Why should we care what Internet Explorer is up to?  Well the dream of standards across web browsers seems to be materializing for html5 and more importantly, canvas 2d.

Even with Silverlight Microsoft has decided to join the party and upgrade the web on some great standards to build even more innovative platforms on top of.  Some may see this as a death knell for Silverlight, Flash etc but I do not see it that way. I see <canvas> as a competing interactive technology but many times technologies bind together for a better experience, they also drive one another to innovate.

Much like Silverlight pushed Flash, and Silverlight was created because of Flash, those two technologies brought on canvas 2D and more graphical capabilities for the web in the interactive, game and application space.  As javascript execution has sped up so has the graphical capabilities of browsers now. What is not to like about that if you are an interactive developer?

Canvas, Flash, Silverlight are all for the most part still software/CPU accelerated. The question is who will start the hardware acceleration of canvas and competing technologies even further to bring us closer to OpenGL ES/WebGL in the browser?

Ars Technica states that IE9 will have hardware accelerated canvas in addition to SVG but that doesn’t seem to be officially stated anywhere by Microsoft yet that I can find.  AMD has hinted at it and previous news about SVG being hardware acclerated.  Time will tell and it will be a HUGE boost to the browsers that do, of course we need all of them to do it to be worthwhile for mainstream content.

Ars on the hardware accelerated canvas support:

What does come as a surprise is canvas support. Microsoft has been promoting Internet Explorer 9′s support of SVG, which provides vector graphics capabilities within the Web browser, but thus far has kept quiet when asked if it would support the canvas bitmap graphics specification. Not only is canvas being supported, it is also being hardware accelerated, continuing Microsoft’s efforts to give Web applications the ability to exploit the extensive hardware capabilities of modern PCs.

Of course we should tread carefully here, there is still a big chance that portions of the canvas 2d spec will not be implemented exactly the same or some browser may have missing features much like CSS and javascript evolution.  For instance the “most Canvas 2D Context APIs and attributes” is something I hope is addressed in the final IE9. If you are gonna spend the time implementing a standard, do it fully and right, don’t try to break it (an old Microsoft tactic). But this step was needed to again push interactive web technologies to more closely compete with desktop graphic technology which adds some really exciting times ahead.

Another golden ray of hope is ES5 support in IE9.  Again Wow!