I was wondering how I could make the "pixellate" effect not static like it is when you use it ( when my character move, the pixels stay in the same place on the screen ), or is it even possible? I wan't to do a lava effect using a plugin (caustic waves) and the pixellate effect... also the "pixel" are based on the resolution of the screen, and so changing between the types of screens... I tried to use pixel rounding, searched for a mosaic effect in hopes to find a way to fix it... but not a success, I was surprised that no one really bothered with this and I am maybe missing something...
here is a part of the lava so that I can show it
and here is the visible problem: