What's the name of the transition effect that, dissolves the image from Top to Bottom then rebuilds the next image from bottom to top? Just simple small tiny pixels dissolving. Is there a name for this effect? Where is this effect located? Is there another program that performs this effect. I know after effects works with these kinds of effects, however I'm looking for the exact effect, dissolves all the pixels from the Top to Bottom then rebuilds all the pixels of the next image from the bottom to top.
I kind of think I know what you're talking about, but a picture is worth thousand words. Sounds like gradient wipe to me. Just apply mosaic to your gradient, pecompose and use the pre-comp as the source of your gradient. I can't know for sure until you show me a picture.
This is what a comp would look like:
Here's a CS6 project file. Just substitute the colored solids for your images.