AS2 Luminosity/ Grayscale Utility

This is a purely code based implementation of the ubiquitous grayscale/ luminosity filter. While most common implementations of this effect tend to be timeline based and therefore lacking in flexibility, this little gem of code-driven ingenuity is free from such constraints and open to wider application. Better yet, this utility was built with ease of use in mind.

The effortless two-step setup process involves simply copying the script to a folder and referencing the script via an "#include" statement on the main timeline. Once that's done, every movieclip will support the fabulous "_grayScale" property.

"Property?" you ask. That is precisely the beauty of this utility. After the initial setup, the effect is accessible via the "_grayScale" property on ANY movieclip instance. Allow me to reiterate...A-N-Y MovieClip instance. Just like the standard MovieClip properties ("_x", "_y", "_xscale", etc.). Hence forth you merely set the property to a value between 0 and 100 inclusive. Set the property to 100 and voila! You've got a full grayscale version of your movieclip.

Furthermore, you can easily tween the property to fade from color to grayscale and back again using classic interpolation methods or via the Tween class (or 3rd party tools like tweener). Coupled with onRollOver/ onRollOut event handlers, you'll be able to implement the colorize-on-rollover effect with relative ease. The sample preview above illustrates this effect, the code for which comes packaged with your purchase of this versatile utility.

In addition, a class based implementation has also been provided for OOP aficionados. All in all, a great tool for any Flash developer to have in his arsenal.

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Tags: gray scale | luminosity | as2 | colorize