Creating a mathematical colour picker

The most common technique for creating a colour picker (at least in the ActionScript world) seems to use a colour wheel bitmap and then getting the colour of the pixel that was clicked on. I found that this was not a very accurate way to go about it and decided to build a colour picker […]

February 28, 2014

AS3 Hex Colour Dodge blending utility

The following is a function that takes two hex colours – a top colour and a bottom colour – and blends them using the Colour Dodge blend mode as found in Illustrator of Photoshop. This is handy for dynamically generating colour variants based on the blend mode. Instead of blending two display objects it simply […]

November 12, 2012

Combining PixelBender paint mixing with TUIO blob size

This post has been sitting around in draft for a while now so thought I’d better publish it. I finally got around to recording a video demo of an app I’ve been working on for a client. I needed to combine my PixelBender paint mixing with blob size so that the brush is the size […]

May 13, 2012

Paint mixing with PixelBender

In my post yesterday I was demonstrating my attempt to create a drawing app using Stage3D for graphics acceleration. As it turns out Stage3D is not built for this kind of ‘per pixel’ manipulation on a drawing canvas. I mentioned at the end of the article that I might explore PixelBender as an alternative for […]

February 7, 2012

AS3 Uint Colour Util – Update: Now with source

Since Flash works with colour in the hex format, I’m always finding it annoying how you have to convert to RGB to perform manipulations on colours. Most colour classes out there like Grant Skinners Color Matrix and the ColorMatrix by Quasimondo work with matrices and the ColourTransform class, which is OK sometimes. But I find […]

March 29, 2011