Generative art with Gource - https://vimeo.com/117098506

A hack. Such a hack

The Ruby is terrible but it works, and Gource and ffmpeg can only be understood with the bamboo headphones on

Generate git repo

#!/usr/bin/env ruby

require 'date'
require 'fileutils'
require 'git'

root = '/tmp/movie'

alpha = 'abcdefghijklmnop'.split('')
extensions = %w{rb css py java c h erb png jpeg yml}

start_date = Date.parse '1970-01-01'

FileUtils.rm_rf root
FileUtils.mkdir_p root
g = Git.init root

1600.times do |i|
  path = ['one/', 'two/', 'three/', 'four/'].sample

  Random.rand(alpha.count - 1).times do |j|
    path << alpha.sample
    path << '/'
  end

  file = "file.#{extensions.sample}"

  here = Dir.pwd
  Dir.chdir root

  FileUtils.mkdir_p path
  FileUtils.touch "#{path}/#{file}"

  command = "git add #{path}/#{file}"
  system command
  command = "GIT_AUTHOR_DATE=#{start_date.to_s}T12:00:00 GIT_COMMITTER_DATE=#{start_date.to_s}T12:00:00 git commit --allow-empty -m 'Creating Art'"
  system command
  Dir.chdir here
  start_date += 1
end

Generate movie

cd /tmp/movie

gource -s 1 -1024x768 -a 1 -r 60 --multi-sampling --hide date,filenames,dirnames,users,mouse --colour-images --disable-bloom --camera-mode overview -o - | ffmpeg -y -r 60 -f image2pipe -vcodec ppm -i - -vcodec libx264 -preset ultrafast -pix_fmt yuv420p -crf 1 -threads 0 -bf 0 gource.mp4