How would I go about making an effect where the ground depixelates and evaporates from 1 end to the other?
Are you on a plane or terrain? If plane, I would make a prefab of the same size, except made out of small cubes. Then instantiate that prefab and either A: procedurally destroy them with a for loop or B: attach rigid bodies with gravity to each cube and let physics do its thing. Perhaps put a colliders way beneath it and destroy the cubes as they hit.