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- Jul 15 2010
Javascript Typed Arrays: Method Support
Al MacDonald recently posted http://stage1.bocoup.com/blog/javascript-typed-arrays – which is an interesting look at the benchmarkable speed differences between FireFox 4’s Float32Array constructor and the traditional Array constructor. As expected, the Typed Arrays are definitively faster due entirely to native optimization: they only allow integer or floating point numbers (respectively to their Int or Float prefix); additionally […]
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Javascript Typed Arrays: Method Support- Tagged in:
- performance,
- tools and workflow
- Jul 14 2010
JavaScript Typed Arrays
You probably know by now that JavaScript is getting a lot of upgrades at the moment. One of the upgrades that WebGL is bringing along for the ride is JavaScript Typed Arrays. A JavaScript Typed Array is very quick! It exists as a fixed block of memory that can be accessed with JavaScript, where as […]
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- tools and workflow
- Jul 07 2010
Popcorn.js Walkthrough
Popcorn.js, which I wrote about recently, is an infant javascript library that allows film makers to better showcase their videos on the web using html5’s video element. Using popcorn, directors can incorporating social media and integrate several features such as subtitles and credits that may be beneficial in the context of the web. Although typically, […]
Continue ReadingPopcorn.js Walkthrough - Jul 04 2010
Popcorn.js
Bocoup, being enormously generous, gave me this week off to work on the open source project Popcorn.js at Mozilla, Toronto. Popcorn.js is sponsored by Web Made Movies, Mozilla’s Open Video Lab, a Mozilla Drumbeat project. Popcorn will allow film makers to do a lot of cool stuff with html5 <video> such as adding credits, subtitles, […]
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- open source,
- tools and workflow
- Jun 25 2010
Canvas in IE9…Too Good To Be True?
Contents What a Difference a Day MakesTesting Processing.jsWhat Works & What SucksFeature TestsComparing SpeedBugs Submitted & Re-OpenedConclusion What a Difference a Day Makes If you have not yet heard the big news, Internet Explorer 9 is shipping with Canvas support! Also with the Video and Audio tags, WOFF Fonts and tons other other HTML5 goodness. […]
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- tools and workflow
- Jun 21 2010
Alternate x axis Intervals In g.raphaël.js linechart()
Use the code below to try out everything that I talk about in this post, and check out the live demo over on code.bocoup.com. modified-x-axis-intervals-and-labels.js //based on the source of http://g.raphaeljs.com/linechart.html var options = { axis: “0 0 1 1”, // Where to put the labels (trbl) axisxstep: 16 // How many x interval labels […]
Continue ReadingAlternate x axis Intervals In g.raphaël.js linechart()- Tagged in:
- performance,
- tools and workflow
- Jun 21 2010
Javascript Web Workers: Chrome 5+ supports new SharedWorker()
In my excitement and haste upon discovering new SharedWorker() support in the Opera 10.60 Beta, I neglected to snoop around the window object of my two favorites, Chrome 5+ and FireFox 3.6+ … WHOOPS! If I had done so, I would’ve discovered, as I did just now, that Chrome 5+ ALSO supports new SharedWorker(). Of […]
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- tools and workflow
- Jun 18 2010
Find the closest Power of 2 with JavaScript
One of the things I have been working on over the last couple of days, is a convenient set of functions to manipulate a Processing.js Canvas for use in the CubicVR WebGL Engine. You may already know that a OpenGL performs best with textures with 2^n (power of 2) dimensions. To minimize CPU load, We […]
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- performance,
- tools and workflow
- Jun 18 2010
Javascript Web Workers: Opera 10.6 Beta Supports SharedWorkers
While poking around the Web Worker API in the latest Opera Beta Release, I discovered that they had also implemented support for Shared Web Workers. If you’re not familiar with Shared Web Workers, have a look here. The basic premise is that a Shared Worker can have multiple connections made to one Worker. Paraphrased from […]
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- tools and workflow
- Jun 17 2010
Processing Pixel Data with Web Workers…
One of the questions that came up in the Processing track was: “Can you pass the image data from a Canvas to a Web-Worker for processing?” My assumption was “yes” as the specs declare you can paste any complex object to and from workers so long as you’re not trying to pass a DOM element. […]
Continue ReadingProcessing Pixel Data with Web Workers…- Tagged in:
- design,
- performance