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Update to the original Inner Life of a Cell (http://youtu.be/wJyUtbn0O5Y). 

Two years ago, BioVisions and Xvivo set out to upgrade their animations by capturing some of that messy complexity. They wanted to cram a virtual cell with proteins at a more realistic density, and then have them jitter and collide.

It turned out to be an enormous amount of work. The motion and appearance of each molecule had to be individually calculated, leading to a vast amount of data that put a strain on Xvivo’s computers.

Along with the scientific effort, the new video required aesthetic work. To allow viewers to distinguish among many kinds of molecules, the Xvivo animators had to search for the right scheme of colors and shadings.

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