One of the main tasks was extending the grass fields to patch the road, manholes and craters in the set for this iconic shot. The technique I used involved more than 20 projections and scattered grass and flowers entirely in Nuke. This continuous shot was originally split into 6 and then combined in comp.
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VFX Supervisors: Greg Butler, Pier Lefebvre
Environment Supervisor: Jules Bodenstein
DMP Lead: Jean-Philippe Marchand
1917 - In Theaters December (Behind The Scenes Featurette) [HD]
How '1917' Was Filmed To Look Like One Shot | Movies Insider