才知道的一个不错的设计软件FRED，推荐！

wocool

详细请看
]http://www.photonengr.com/index.html
那里提供下载demo
]http://www.photonengr.com/downloads/demo/
You will get a dialog asking for a username and password.
Username: DemoDownload
Password: ph0t0n3ngr