漸層斜角濾鏡

GradientBevelFilter 類別可讓您對顯示物件或 BitmapData 物件套用增強的斜角特效。在斜角上使用漸層顏色可大大改善斜角的空間深度，讓邊緣看起來更真實、更立體。

下列程式碼將使用 Shape 類別的 drawRect() 方法來建立一個矩形物件，並在其上套用漸層斜角濾鏡。

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);