I worked at MPC, doing lots of prep / Rig Removals for the feature film 10,000 BC using Shake and Sillouettte on Linux.
My task was to remove the crash mat and the bottom of the blue poles on the side.
Anything above was not needed because it was going to be replaced completely by the matte painting department. I used a combination of tracked painted patches, tracked roto and tracking data from boujou and MPC’s pro- priety tools to get the accurate camera move information and apply motion blur and grain accurately to the tracked patches since the camera was moving at a certain speed towards the actor. I also had to digitally paint back an arm on one of the dead men on the floor when i removed the crash mat. This was done by finding a frame which had a full arm and using warping to extend it as we moved closer to it.
Although this is very laborious, I am really pleased I did alot of roto and prep at MPC, as those skills are essential throughout my VFX career and still utilized from compositing to VFX Supervising today.