CleanUp is the process of creating the final drawings you see in the finished film and Tracking provides real-time information and the amount of animation data produced by motion tracking within a given time is large. VFX Paint / Clean up is the process of removing unwanted artifacts, reconstruct a background or digitally correct a render or composite of the shots. FX paint / Clean up Methodology. Whether wire or rig removal, clean plate generation, adding or removing elements, Paint is where the magic in VFX happens.