For our documentary „7 Mountains to Glory“, we needed a helicopter shot to be modified to look like it takes place at night, due to the film’s story. The shot is approximately 25 seconds long and has been captured among sunny but slighly diffuse conditions. To get the feeling of that wet and cloudy early morning (4:00 am) of the race day, when the athletes were heading toward the Traunstein’s plateau, we added some clouds, a dark sky, colours and lights using After Effects. The challenge was to apply the effects over the whole sequence, in which the perspective, foreground etc. is going through a lot of changes. Rotoscopying had to be done by hand as well.

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