topical media & game development
[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

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lib-flex-cover-com-dougmccune-containers-materials-ReflectionMaterial.ax

lib-flex-cover-com-dougmccune-containers-materials-ReflectionMaterial.ax (swf ) [ flash ] flex 


  package com.dougmccune.containers.materials
  {
          import flash.display.BlendMode;
          import flash.display.DisplayObject;
          import flash.display.GradientType;
          import flash.display.Sprite;
          import flash.geom.Matrix;
          
          import org.papervision3d.materials.MovieMaterial;
          
          public class @ax-lib-flex-cover-com-dougmccune-containers-materials-ReflectionMaterial extends MovieMaterial
          {
                  
                  public function @ax-lib-flex-cover-com-dougmccune-containers-materials-ReflectionMaterial(movieAsset:DisplayObject=null, transparent:Boolean=true, animated:Boolean=true)
                  {
                          super(movieAsset, transparent, animated);
                  }
Basically we're flipping the image vertically, then drawing a gradient over it and drawing that using the ALPHA blend mode. 

  
                  override public function drawBitmap():void {
                          
                          var mtx:Matrix = new Matrix();
                          mtx.scale( movie.scaleX, -movie.scaleY );
                          mtx.translate(0, movie.height);
                          
                          bitmap.draw( movie, mtx, movie.transform.colorTransform, BlendMode.LAYER );
          
                          var sprite:Sprite = new Sprite();
                          
                          var alphas:Array = [0, .2];
                          var ratios:Array = [150, 255];
                          var matr:Matrix = new Matrix();
                          matr.createGradientBox(bitmap.width, bitmap.height, Math.PI/2, 0, 0);
                          
                          sprite.graphics.beginGradientFill(GradientType.LINEAR, [0x000000, 0x000000], alphas, ratios, matr);  
                          sprite.graphics.drawRect(0,0,bitmap.width,bitmap.height);
                          
                          bitmap.draw(sprite, mtx, null, BlendMode.ALPHA);
                  }
                  
                  
          }
  }
[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

(C) Æliens 18/6/2009

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