tailieunhanh - adobe flash cs5 on demand part 39

Tạo hình động với Motion Tweening Trong Flash, nó không cần thiết phải vẽ từng khung hình trong một hình ảnh động. Bạn có thể thiết lập vị trí và thuộc tính của nghệ thuật của bạn trong khung bắt đầu và kết thúc, và Flash sẽ tạo ra tất cả các khung ở giữa. Điều này được gọi là tweening. Một tween kết nối hai khung hình chính chuyển động, mỗi hiệu ứng khác nhau hoặc các đặc tính áp dụng cho họ và sau đó dần dần "biến hình" một thành khác | Animating with Motion Tweening 8 Introduction What You ll Do In Flash it s not necessary to draw every frame of an animation. You can set the position and attributes of your art in the beginning and ending frames and Flash will create all of the frames in between. This is called tweening. A motion tween connects two keyframes each with different effects or characteristics applied to them and then gradually morphs one into the other. Tweening allows you to quickly animate objects apply fades and gradually alter color alpha scale and any other effect that can be applied to a symbol group or text object. The span between the starting frame and ending frame of a motion tween is called the tween span. The tween span consists of a group of frames in a single layer with a blue background in the Timeline in which an object changes over time. Only one object known as the target object on the Stage can be animated in each tween span. Once an animation is tweened you can continue to edit it by adding or removing frames to make it move slower or faster adjust effects or control the inertia with ease-in and ease-out properties adding further complexity. Motion tweening produces smaller files than frame-by-frame animation because Flash describes the motion mathematically incrementally transforming the object in between the two keyframes. Understand Motion Tweening Apply Motion Tween Presets Create a Motion Tween Adjust Motion Tween Properties Edit Motion Tween Properties with the Motion Editor Add Color Effects and Filters Work with Property Keyframes Edit the Path of a Motion Tween Copy Motion as ActionScript 237 Understanding Motion Tweening Motion tweening allows you to apply smooth motion and transform effects such as scale position rotation and skew to symbol instances movie clip graphic and button and text fields. Additionally you can utilize Flash s advanced color effects to apply changes to color alpha and brightness. Because these effects are applied to instances they .