Is there a way to change your blendMode on a per-pixel basis. Essentially, I want the blendMode layer to be applied as a Multiply blend mode if the brightness value is greater than 20, and as a Screen blend mode if the brightness value is less than 20. I need that to be evaluated on a per pixel basis, however, as the movieClip under the blendMode layer will or could consist of both light and dark colors.
Anybody have any idea how I might accomplish this?