Just sell it to NetflixDepends what they are adjusting. May well have to re-render the entire thing and run it through all the checks again. Looking for pieces passing through each other or in front or behind things they shouldn't. Adjust and re-render all the effects, reflections and so on.
It could be a hell of a lot of work for them.
![Big Grin :D :D](/styles/default/xenforo/vbSmilies/Normal/biggrin.gif)