Question

I have a BitmapImage and I applied a ShaderFilter to it:

            var bm:BitmapImage = new BitmapImage();
            bm.source = resizedBitmapData;
            bm.filters = [filter];

I tried copy the bitmapImage into a bigger image as overlay:

            bm.addEventListener(FlexEvent.READY, function (event:*):void {
                var bmd:BitmapData = bm.bitmapData;
                backgroundBitmap.bitmapData.copyPixels(bmd, 
                    new Rectangle(0, 0, bmd.width, bmd.height),
                    location);          
            });

It worked but what “bmd” contains is the original image before the filter was applied. What I wanted is to grab the resulting image after applying the filter. Is this possible?

I was trying ImageSnapshot.captureBitmapData() but BitmapImage doesnt seem to be an IBitmapDrawable.

Answer 1

I would try adding it to a sprite and then render the sprite if your way is not working allready…

something like

 var helper:Sprite = new Sprite();
 helper.addChild(bm);
 var bmd:BitmapData = new BitmapData(bm.width,bm.height);
 bmd.draw(helper);
 backgroundBitmap.bitmapData.copyPixels(helper, 
       new Rectangle(0, 0, helper.width, helper.height),location);  

have you anyway checked the filter applies and is rendering with the wanted result? 😉