Waving text on canvas

bitmap, canvas, distortion, effect, javascript

Solution

EDIT: @Ben, forget about the downvotes for no reason on your question, and... BE MY GUEST! :)

I never coded with `<canvas>` before, it was very fun. At this point, there is no bilinear interpolation. I might rework it and add more bells and whistles.

If you want to achieve such an effect in javascript, you'll effectively have to use the `<canvas>` tag.

The principle consists in precalculating a distortion function in a buffer that is larger than the source image dimension.

Have a look at the old Flipcode Art of Demomaking column: Bitmap Distortion. This is a good old gem :) The paragraph about the cache might not be relevant for a `<canvas>` based implementation though.

There are many Processing resources out there, so it's also a good idea to have a look at Processing.js.

Problem

Original source