How to do Mask Animation in Flash?
How to create a Masking or Spotlight effect? Explanation
effect is used to highlight a particular portion of an image or text and mask the other portions.
Masking/Spotlight Effect The above video teaches you how to mask a portion of image or text in Flash.
First select the "Keyframe" in the default Layer , mentioned as "Layer3" in the above example. Simply drag an image from the library to the Stage. Add a new layer say, "Layer4", for displaying the spotlight effects and Select the "keyframe" in that Layer . Draw a circle on the image using "Oval tool" to mark the masking area. Select the circle object using the "Selection Tool". Simply right click in "Layer4" to choose option "Mask" Again to animate, right click in the same layer "Layer4" to choose "Create Motion Tween". At the end point of animation in "Layer4", right click and choose "Insert Keyframe" And, at the same point in "Layer3", right click to choose "Insert Frame". Select the endpoint of mask animation in "Layer4". Now place the masking circle at the position where the masking ends. Press "Ctrl+Enter" to view the flash movie. We have masked the image or created a spotlight effect to the image, so that only the text is visible in the movie.