well I got it working using a shaderjob. Its now making transition using videos in bitmaps.

Cheers!

var rippleTransition : Shader = TweensyShaders.rippleTransition;

drawing.clear();
drawing.beginShaderFill(rippleTransition);
drawing.drawRect(0, 0, 690, 395);

Then I tweened the parameters on the shaders ShaderData to then get an animated result. These are the ShaderParameter options :

var shaderData : ShaderData = rippleTransition.data;
var centerParam : ShaderParameter = shaderData.center;
var rectParam : ShaderParameter = shaderData.rect;
var frequencyParam : ShaderParameter = shaderData.frequency;
var progressParam : ShaderParameter = shaderData.progress;
var speedParam : ShaderParameter = shaderData.speed;
var oldInput : ShaderParameter = shaderData.oldInput;
implicitInput = shaderData.implicitInput;

Nice job with the pixelBender blends. They work very well. I was trying to make work the ripple transition and when I use a blendmode it looks like its only alpha fading. But when I use it as a Filter it makes CS4 crash. I was wondering if you can reply with a quick how to.

best regards and continue on your exploration it rocks