Creating A Blurred Mask In Flash
In this exercise you will create a video that blurs the edges of a mask to create the effect of a video that is in focus in a "knock out" area while the remainder of the video, under a black bitmap, is blurred using a Threshold effect. The key to this exercise, is to understand that the shapes you draw are composed of colored pixels. These pixels form a shape and that shape, when the movie is displayed on your screen, is seen by the computer as a bitmap.
Check out the online tutorial:
http://www.communitymx.com/content/article.cfm?cid=B0E7D
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