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AdvancED ActionScript 3.0 Animation
Keith Peters
出版Apress, 2009-01-25
主題Computers / Web / Web ProgrammingComputers / Computer Vision & Pattern RecognitionComputers / Information Technology
ISBN14302160939781430216094
URLhttp://books.google.com.hk/books?id=W872VekjvEoC&hl=&source=gbs_api
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註釋This chapter covered numerical integration—what it is and the problems that come with it. You now know that you’ve probably been using Euler integration (and you now know how to pronounce it) and you have a few alternatives available to use. And most importantly, you hopefully have an idea about when to use each one because they all have strengths and weaknesses. Euler, Runge-Kutta, and Verlet are not the only forms of numerical integration. A quick check on Wikipedia brings up this list of interesting sounding names: Backward Euler, Semi–implicit Euler, Velocity Verlet, Beeman’s algorithm, Heun’s method, Newmark-beta method, Leapfrog integration, and Monte Carlo integration. I have no idea what they all are, but it might be fun to find out. Over to you! Next up, we’ll dive into some brand new Flash 10 features regarding 3D! 273 Chapter 7 3D IN FLASH 10 Since I’ve been involved in Flash, I’ve seen a new version of the Flash authoring tool, along with a new Flash Player, come out about every 18 months. Shortly after each version is released, the rumors, speculations, and wish lists for what will be in the next version begin. Routinely, one of the longed- for features is native 3D. And just as routinely, hopes are dashed when it doesn’t appear. Until Flash 10. You could always do 3D in Flash by scaling and positioning things to make them look like they are nearer or farther away.