gistfile1.rb

require 'ruby-processing'

class Radiohead < Processing::App

  load_libraries :opengl, :video
  include_package "processing.opengl"
  include_package "processing.video" 

  def setup
    render_mode OPENGL
    stroke_weight 1
    @current_frame = 1
    @total_frames = 1000
    @movie = MovieMaker.new(self, width, height, "drawing.mov", 30, MovieMaker::ANIMATION, MovieMaker::HIGH)
  end
  
  def draw
    background 0
    translate(width/2, height/2)
    translate(-150,-150)
    scale(2)
    rotateY(@current_frame/50.0);
    
    puts "Rendering frame #{@current_frame}"
    frame_data(@current_frame).each do |row|
      x,y,z,intensity = row.split(',').collect {|x| x.to_f}
      stroke(intensity*1.1, intensity*1.6, 200, 255)      
      line(x,y,z,x+1,y+1,z+1)
      stroke(intensity*3.1, intensity*3.6, 150, 100)
      line(x+100,y+100,z+100,x+101,y+101,z+101) 
    end
    @movie.add_frame
    advance_frame
  end
  
  def frame_data(frame)
    load_strings("#{frame}.csv")
  end
  
  def advance_frame
    if @current_frame == @total_frames
      finish
    else
      @current_frame += 1
    end      
  end

  def finish
    puts "Saving movie..."
    @movie.finish
    exit
  end
end

Radiohead.new :title => "Radiohead", :width => 1024, :height => 768