[Cryptography] Finding Nemo's random seed
iang
iang at iang.org
Tue Sep 5 04:22:50 EDT 2017
https://spectrum.ieee.org/computing/it/the-lost-picture-show-hollywood-archivists-cant-outpace-obsolescence
...
When Pixar wanted to release its 2003 film Finding Nemo for Blu-ray 3D
in 2012, the studio had to rerender the film to produce the 3D effects.
The studio by then was no longer using the same animation software
system, and it found that certain aspects of the original could not be
emulated in its new software. The movement of seagrass, for instance,
had been controlled by a random number generator, but there was no way
to retrieve the original seed value for that generator. So animators
manually replicated the plants’ movements frame by frame, a laborious
process. The fact that the studio had lost access to its own film after
less than a decade is a sobering commentary on the challenges of
archiving computer-generated work.
...
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