DEVELOPING AN ANIMATION USING MASKING OF
LAYER
Step 1 : Create a new Flash document
Step 2 :
Insert one more layer, rather than the default layer.
Step
3 : Rename the top layer to "Mask" and
the layer below that to "background".
Step 4 : Import
your picture to the "background" layer.
Step
5 : Using Oval tool from your tool box, draw a
circle in your "Mask" layer and delete it's border.
Step 6 : Drag
the circle to one end of your picture.
Step
7 : Now go to"frame 40" of your
"Mask" layer and press "F6" to insert a new keyframe.
Step
8 : Now go to "frame 40" of your
"background" layer and press "F5" to insert frames, so that
your background image is available all through your mask.
Step
9 : Select "frame 40" of your
"Mask" layer, that is your new keyframe, Keeping the playhead on
"frame 40" of "Mask" layer, drag the circle to other end of
your picture.
Step
10 : Now go back to "frame 1" of your
"Mask" layer, keeping the playhead on "frame 1" of your
"Mask" layer, select Shape tween in your properties window.
Step
11 : Right click on the "Mask" layer (the
area where you named the layer not where the frames exist) and select Mask.
Step 12 : select Control > Play
Step 13 : Stop
OUTPUT:-