Twice a month, we revisit some of our readers’ favorite posts from throughout the history of Activetuts+. This tutorial was first published in April, 2009.
In this tutorial we’ll create a magnifying glass effect, demonstrating use of the displacementMapFilter. The effect can be achieved in a relatively short space of time and with very little code.
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In this tutorial, we’ll be building a class file that creates a stylized mask for any DisplayObject. The mask will be based on Perlin noise, and create an effect of growing holes that progressively “eat away” at the DisplayObject until it is completely obscured. Along the way, we’ll learn some of the more advanced techniques available using BitmapData.
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