Any object can accept multiple effects. This means that even if an object already takes place in an animation, you can apply an additional effect to make it disappear.

Scientists have figured out how to use the “mirage effect” to completely make an object disappear. The effect uses the tubes and it only works underwater. Finally! An invisibility cloak!

They've developed a material "that can bend light around 3D objects" in effect, causing them to disappear. Now, of course this material currently only exists on a nano scale.