flex 特效
?distance - distance from the spotlight to the center point?
intensity - intensity of the spotlight?
position - x, y, z position of the spotlight?
spotColor - color of the spotlight?
源文件：http://www.rphelan.com/flex/SpotlightDemo/srcview/index.html?
2:放大镜效果：?
实例：http://www.rphelan.com/flex/MagnifyDemo/MagnifyDemo.html?
center ([0-2048, 0-2048]) - the center coordinates of the magnified area
outerRadius (0-500) - the radius of the magnified part of the image?
innerRadius (0-500) - the radius of the fully magnified part of the image?
magnification (1-50) - the amount to magnify the image by (e.g. set to 2 for a 2x magnification)?
源文件：http://www.rphelan.com/flex/MagnifyDemo/srcview/index.html?
3：缩放模糊效果：?
实例：http://www.rphelan.com/flex/ZoomBlurDemo/ZoomBlurDemo.html?
amount (0 - 0.5) - the amount of blur to apply?
center ([0 - 2048, 0 - 2048]) - the focal point of the blur?
源文件：http://www.rphelan.com/flex/ZoomBlurDemo/srcview/index.html?
4：浮雕效果：?
实例：http://www.rphelan.com/flex/SharpenDemo/SharpenDemo.html?
amount (0 - 20) - the amount to sharpen the image by?
radius (0 - 1) - pixel distance to sample from?
源文件：http://www.rphelan.com/flex/SharpenDemo/srcview/index.html?
5：水波效果：?
实例：http://www.rphelan.com/flex/WaveReflectionDemo/WaveReflectionDemo.html
