TAILIEUCHUNG - Thiết kế flash với flash cs5 part 33

Tạo Frame-by-Frame Animation Giới thiệu Flash cung cấp một số phương pháp để tạo hình ảnh động. Ngoài hình dạng và tweening chuyển động, bạn có thể tạo frame-by-frame hình động. Các phương pháp frame-by-frame có nguồn gốc từ quá trình hoạt hình truyền thống, theo đó nội dung được vẽ lại trên mỗi khung hình với sự khác biệt nhỏ so với khung hình cuối cùng. | Creating Frame-by-Frame Animation 7 Introduction What You ll Do Flash provides several methods for creating animation. In addition to shape and motion tweening you can create frame-by-frame animations. The frame-by-frame method is derived from the traditional animation process whereby the content is redrawn on each frame with slight differences from the last frame. When these frames are played in sequence there is an illusion of movement. In Flash you utilize keyframes in the Timeline to accomplish this. A keyframe defines a change to the artwork placed on the Stage. There are a number of ways to create and edit keyframes as they are editable objects. Keyframes can be moved copied and pasted to and from any Timeline in your Flash movie or between different Flash documents. Frame-by-frame animations can be previewed in the Flash development environment so you can quickly see the results and check your work as you animate. They can also be viewed in the Flash Player using the Test Movie options. Additionally there is an Onion Skin mode that allows you to see the active frame in context to the frames around it making it easier to fine-tune keyframe changes. The versatility of the Timeline and the strength of the Flash Player allow you to implement animation in your movie and give it life. Understand Frame-by-Frame Animation Create Keyframes Convert Frames to Keyframes Use Frame-Based Versus Span- Based Selection Clear Keyframes Versus Removing Frames Edit Keyframes Create a Simple Frame-by-Frame Animation Play an Animation Use Onion Skinning Modify Onion Skin Markers Edit Multiple Frames 217 Understanding Frame-by-Frame Animation Animation is the illusion of movement. It is comprised of a series of pictures each slightly different from the last that when played sequentially imply movement. Motion pictures work the same way. What you see when you view a film is a long strip of images played at specific intervals. In this way the content in the pictures moves and seems

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