Personally, I’ve used 3DS Max (expensive) and SketchUp (free), but I know that many in the Flash community use the Open Source tool Blender. The price point is hard to beat (free) and Blender exports to a variety of formats that works with Actionscript based 3D engines (thanks to Dennis Ippel). No matter what tool you choose, expect to spend some time to learn the tool. Creating 3D models can be a tedious task and the various software packages can be complex. Use tutorials you find online or get a good book to ease the process. As you get proficient at modeling, keep in mind what you just learned about the complexity of models as well. Something that looks good in the modeling software may easily be too complex to display in Real-time using Flash.

就个人而言，我使用付费软件中的3DS Max ，免费软件中的SketchUp…

http://en.wikipedia.org/wiki/3D_computer_graphics_software

相当全啊～

貌似最近事很多，Flash CS4 出来这么长时间了，还只是看了一点点新特性，下面这些是新特性的官方文档，虽然Flash Cs4的文档里也有，但是需要找…和我一样懒的同学们可以直接看下面这几个链接就好。

绘图 API 高级用法
使用反向运动
在三维 (3D) 环境中工作
使用 Pixel Bender 着色器
处理数组 （Vector）

http://www.flashloaded.com/flashcomponents/3dwall/