
Post Production and Digital Intermediate 555
CG work and any accompanying clean plates
or reference materials are supplied to the ven-
dors, usually as Open EXR les or as DPX les
along with applicable LUTs and CDLs. At the
CG vendor, data is ingested as scan, linearized
to gamma of 1 with the inverse of the camera
encoding, and then is usually published as both
scan.EXR and published as scan.JPG. The ven-
dor’s tracking department ingests distortion
map footage (at this point the work of mapping
lenses becomes very important! See Chapter
7 – Lenses – for instructions on how to shoot
lens distortion ...