Typographic effects would be working with the glyphs themselves, or composing letters, words into something interesting. I was pretty excited by the title: support for OpenType ligatures and features in browsers is pretty weak, and if <canvas> could act as a polyfill it would be pretty cool.
What is here are graphic effects, and while technically interesting, aesthetically not pleasing.
Reading through the article, I was thinking if a canvas-based photoshop-like app could be built. Is anyone aware of an article that explains the architecture of Photoshop? How pixels are processed through its stack of layers?
Sure it could, albeit in a more limited way. It has been done actually, at least in Flash (which includes some similar bitmap features, although it is vector based).
The main problem, as is with Flash based editors, would be performance.
>Is anyone aware of an article that explains the architecture of Photoshop? How pixels are processed through its stack of layers?
Well, the layers are just different images with alpha transparency drawn on top of each other, and the blend modes are just math done between two layers' pixel values.
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The main problem, as is with Flash based editors, would be performance.
>Is anyone aware of an article that explains the architecture of Photoshop? How pixels are processed through its stack of layers?
Well, the layers are just different images with alpha transparency drawn on top of each other, and the blend modes are just math done between two layers' pixel values.
Here's an (rather basic) article:
http://photoblogstop.com/photoshop/photoshop-blend-modes-exp...