MACROMEDIA FLASH 8-LEARNING ACTIONSCRIPT 2.0 IN FLASH Manual do Utilizador descarregar pdf (Página 8)

8Graphics

To prevent this effect from looking too much like a drop shadow against a

flat wall behind the original object, you can use the Free Transform tool to

skew the filtered movie clip instance. This technique takes a bit of trial and

error. Squash and skew the instance until it looks as if the shadow is being

cast upon a floor. (You may need to reposition the instance.) Test the movie

clip, and you see the effect come to life.

You can find the sample source files, drop_shadow_dog.fla and

drop_shadow_monkey.fla, in the Samples folder on your hard disk.

■ In Windows, browse to boot drive\Program Files\Macromedia\Flash

8\Samples and Tutorials\Samples\Graphics\AnimatedDropShadow.

■ On the Macintosh, browse to Macintosh HD/Applications/

Macromedia Flash 8/Samples and Tutorials/Samples/Graphics/

AnimatedDropShadow.

These samples were developed by Chris Georgenes.

Animation and gradients

This sample shows how to create a realistic-looking animation with

gradients and drop shadows.

To re-create the process of constructing this sample, you first design the

eight-ball graphic. Start by mixing a radial gradient containing three colors:

black, white, and a medium gray. Then create a circle with the Oval tool

(hold down Shift to constrain the shape so it is perfectly round), and fill it

with the new radial gradient. Using the Gradient Transform tool, edit the

radial gradient fill by offsetting it from the center of the circle. This gives

the illusion of depth as the off-center white highlight gradually changes to

black and a subtle amount of gray appears in the lower-right corner of the

sphere. This is crucial for making a convincing-looking sphere; it suggests

light wrapping around from behind the ball.

Then convert the gradient fill to a graphic symbol and edit it further by

adding a new layer and applying a shadow using a linear gradient. The

linear gradient uses two colors with varying amounts of alpha mixed in.

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MACROMEDIA FLASH 8-LEARNING ACTIONSCRIPT 2.0 IN FLASH Manual do Utilizador Página 8