Pull focus dynamically in Flash

The focus-pull technique is an excellent way of creating depth of field in your projects by pulling the focus between objects in the foreground, middleground and background. The effect is achieved by applying a BlurFilter to each object and dialling each object’s focus, based on the distance from the mouse’s Y position to the centre of the object.

In this tutorial I’ll show you how to use this technique to add real depth and a dramatic finish to your Flash projects, using only 14 lines of code.


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