Flash basic Theory Lesson first chapter basic animation concept

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Chapter One concept of basic animation

Flash is an animated machine. Starting with the earliest version of Flash, it supports motion tweens-just create two different keyframes, and then let Flash automatically create a tweened animation. This book will introduce a powerful language-actionscript in Flash. This book includes programming, mathematics, physics and other techniques, and combining ActionScript to make objects move, these are complementary animation can not match.

What is animation?

The word "animation", citing explanations in the American traditional dictionary

1. Make a living; be full of life

2. Give the interest; give it a passion;

3. Encourage or motivate: to be full of spirit, courage, or determination;

4. To encourage or motivate;

5. Push, drive

6. To make a vivid movement: to produce, design, or produce (a cartoon, for example) to create an illusion of motion

The first four philosophical definitions are well understood, and what we really want to discuss is the fifth to sixth definition, animation means movement. Starting from this point, animation changes over time, especially visual changes. The movement basically behaves as the object changes in position over time, starting here and then there. In theory, objects have been somewhere between two points, but I cannot give a purely philosophical explanation (at least not yet). As time goes by, the object starts at this point, and then it goes to that spot.

Frame and Motion

The researchers found that images played at 24 frames per second were most likely to be viewed as moving images. Slower than this, it can cause a jump frame due to a longer pause time, which destroys the coherence of the image. The human eye does not seem to be able to discern faster than this frame rate, theoretically, even if the speed of 100 frames per second will not make the animation more realistic (although the fast frame rate will cause more interactive response to the program animation, looks more smooth).

Dynamic animation VS Static animation

The advantage of using program animation is not only the file size problem, this is also the fundamental of program animation becomes dynamic animation. Have you ever seen the film of Titanic? Hope to remember some, but the sinking of this thing, but it happens every time, whether in the cinema, home video or DVD. Whether it is a short stop or a pause, the wreck will not be stopped, because the film is made up of a series of still images. What if there were some objects in our movie that could change them with a mouse or a keyboard? Allows users to interact with objects on the screen, which is far more effective than static animations, and you can even save the Titanic!