This scene was sooooo time consuming because I (somewhat naively) wanted 5 separate points of animation: The protagonist, the windows, the curtains, the blood dripping from the corpse's head and the lighting in the fireplace. I had the curtains and windows attached to cotton thread so that they could be held in place which also made moving them between shots pretty quick but everything else was painstaking.
When choosing which 30 second clip from the music we were allocated to use i decided to emphasise the first 3 beats when the bass drum kicks in by flooding the set with light to give the appearance of lightening. I thought this would be quite simple until it came to actually figuring out how many frames to leave between lightening strikes.
First, I imported the song into Cubase audio software and figured out that the track is 200bpm in 4/4 tempo. The beats i wanted to emphasise were the first in each bar for three consecutive bars so I worked out the frame spacing as follows (i know this isn't a maths degree by the way but it can't hurt to explain!):
the music has 200 beats per minute, and the animation is 12 per second x 60 seconds = 720 frames per minute
200bpm / 60 seconds = a beat every 0.3 seconds therefore every 4th beat is every 1.2 seconds.
60 seconds / 1.2 = 50 so 720 frames / 50 = 14.4 = emphatic beat once every 14.4 frames
Phew!
Damn decimal place in there though. Sod it, the lightening will have to strike every 14 frames then i'll time stretch it in after effects...
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