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Flash CS4 Professional in 24 Hours- P10

Flash CS4 Professional in 24 Hours- P10: The creation of this book could not have happened without the skill and patience of many, many people at Sams Publishing. Most of all, I want to thank Mark Taber for offering me this opportunity and Philip Kerman for writing such a great book. I also greatly appreciate the efforts of Songlin Qiu for keeping me on track and organized, not an easy task. | Subtleties of Movie Clips 261 FIGURE 14.4 When set to Movie Clip the Properties panel gives you a way to name a particular instance on the Stage. Effects on Download Order All this trash talk about Graphic symbols shouldn t scare you off. Besides being appropriate for scrubbing they also have a nice effect on downloads. Specifically Graphic symbols only need to download one frame at a time and therefore exhibit a better streaming effect than Movie Clip symbols. A movie that uses Graphic symbols or even no symbols can begin to play before it s entirely downloaded in other words it streams. In the case of a frame containing a Movie Clip all nested frames need to download before Flash proceeds to the next frame. If Flash reaches a frame that contains a ton of Movie Clip instances which in turn include lots of nested frames your user might experience a pause. Even though the later frames in nested clips might not be needed right away Flash needs to be prepared for a script that immediately jumps to the last frame. This isn t a critical point because Flash files tend to be small and there are other ways to optimize a movie many of which are discussed in Hour 22 Minimizing File Size . So keep in mind that Graphic symbols stream better. 262 HOUR 14 Nesting Animations in Movie Clip and Graphic Symbols Summary You already knew two big concepts how nesting of symbols works and how symbols can be used for both motion tweens and efficiency. This hour put them together. When doing motion tweens you might have tried to make a symbol a multiframe symbol. Now you know you can do that and there are options that control whether the multiframe symbol you re tween-ing is behaving like a Movie Clip or a Graphic. You can t see Movie Clips animate on the stage by scrubbing. To test them you must run Test Movie. When you really need the capability to scrub the main Timeline such as for lip synching avoid using Movie Clips. Finally the fact that only Movie Clips can be given an instance .