改变MC的亮度

//方法一
 
var color:Color = new Color(mc);
 
this.r_mc.k_mc.onPress = function() {
 
        this.startDrag(false,0,0,100,0);
 
        this.onEnterFrame = function() {
 
                var temp_color:Object = color.getTransform();
 
                temp_color.bb = temp_color.gb=temp_color.rb=(this._x-50)*5.1;
 
                this._txt.text = "亮度："+Math.round((this._x-50)*5.1);
 
                color.setTransform(temp_color);
 
        };
 
        this.onMouseUp = function() {
 
                this.stopDrag();
 
                delete this.onEnterFrame;
 
                delete this.onMouseUp;
 
        };
 
};
 
//方法二
 
import flash.filters.ColorMatrixFilter;
 
this.b_mc.k_mc.onPress = function() {
 
        this.startDrag(false,0,0,100,0);
 
        this.onEnterFrame = function() {
 
                var v:Number = this._x/50;
 
                mc2.filters = [new ColorMatrixFilter([v, 0, 0, 0, 0, 0, v, 0, 0, 0, 0, 0, v, 0, 0, 0, 0, 0, 1, 0])];
 
        };
 
        this.onMouseUp = function() {
 
                this.stopDrag();
 
                delete this.onEnterFrame;
 
                delete this.onMouseUp;
 
        };
 
};

mc2.filters = [new ColorMatrixFilter([v, 0, 0, 0, 0, 0, v, 0, 0, 0, 0, 0, v, 0, 0, 0, 0, 0, 1, 0])];
 
这个和方法一是相同的原理，都是让红，绿，蓝三个通道的值同时做相同的变化　
 
ColorMatrixFilter矩阵中每个值的这定义帮助中有明确说明和代码举例，需要的只是时间和精力去看