This show covers the new AnimateFilter effect in Flex 4, which allows you to animate properties on Flex filters. You could do this in Flex 3, but it required more custom effects or animations, where you would receive the animation events and manually update the filter properties. Now, you can pass in the filter and the animation properties to AnimateFilter and it automatically animates the filter properties. This is another example of Flex 4 effects being able to target arbitrary objects; in this case, it is changing properties on a filter, not on a component. The demo app also shows the new RepeatBehavior capabilities in Flex 4 effects, which makes it easier to create reversing effects, like we have on the pulsating button in the demo.
Here's the video:
Here is the demo application:
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