A 3D cleanup is different from a classic 2D cleanup. In 3D, we use match-moved camera to stick clean patches onto the original plate. A typical 3D cleanup involves a 3D camera (I used my 3DEqualizer match-moved camera from VX5001), then freezing the position using FrameHold, RotoPaint as in 2D. After this, the clean patch is re-rendered using the match-move camera without frame hold. My 3D cleanup consisted of three patches, so I used a Dissolve node to interpolate between them. As with 2D cleanup, the patch is then redistorted, reformatted and regrained to fit the original plate to the best degree.