From January 2017 to July 2017, We have spent 7 months on essentially 8 shots to recreate Rachel (Sean Young) in 3D. The difficulty of this work was that it was shot in 4K, Close up, nearly static cameras, with a very subtle performance! We spent months doing lots of research and development to look at human anatomy and micro facial expressions.
Here is an article interviewing our VFX supervisor, Richard Clegg!