渐变斜角滤镜

Flash Player 9 和更高版本，Adobe AIR 1.0 和更高版本

GradientBevelFilter 类可对显示对象或 BitmapData 对象应用增强的斜角效果。在斜角上使用渐变颜色可以大大改善斜角的空间深度，使边缘产生一种更逼真的三维外观效果。

以下代码使用 Shape 类的 drawRect() 方法创建一个矩形对象，并对它应用渐变斜角滤镜。

import flash.display.Shape; 
import flash.filters.BitmapFilterQuality; 
import flash.filters.GradientBevelFilter; 
 
// Draw a rectangle. 
var box:Shape = new Shape(); 
box.graphics.lineStyle(); 
box.graphics.beginFill(0xFEFE78); 
box.graphics.drawRect(100, 50, 90, 200); 
box.graphics.endFill(); 
 
// Apply a gradient bevel to the rectangle. 
var gradientBevel:GradientBevelFilter = new GradientBevelFilter(); 
 
gradientBevel.distance = 8; 
gradientBevel.angle = 225; // opposite of 45 degrees 
gradientBevel.colors = [0xFFFFCC, 0xFEFE78, 0x8F8E01]; 
gradientBevel.alphas = [1, 0, 1]; 
gradientBevel.ratios = [0, 128, 255]; 
gradientBevel.blurX = 8; 
gradientBevel.blurY = 8; 
gradientBevel.quality = BitmapFilterQuality.HIGH; 
 
// Other properties let you set the filter strength and set options 
// for inner bevel and knockout effects. 
 
box.filters = [gradientBevel]; 
 
// Add the graphic to the display list. 
addChild(box);