server.rb

URL = ENV['DRB_URL'] || 'druby://0.0.0.0:9000'

class Sketch < Processing::App
  def setup
    render_mode P3D
    require 'drb'
    class <<self
      attr_accessor :fade
      %w{
        clone
        define_singleton_method
        display
        dup
        extend
        freeze
        instance_eval
        instance_exec
        instance_variable_defined?
        instance_variable_get
        instance_variable_set
        instance_variables
        public_send
        remove_instance_variable
        send
        tap
        library_loaded?
        load_java_library
        load_libraries
        load_library
        load_ruby_library
      }.each do |method|
        if method_defined?(method.to_sym)
          undef_method(method.to_sym)
        end
      end
    end
    background 100
    self.fade = false
    DRb.start_service(URL, self)
  end
  def draw
    if fade
      fill 0, 0, 0, 4
      rect_mode CORNER
      rect 0, 0, width, height
    end
  end
end
Sketch.new(:width => 1080, :height => 768, :title => 'http://gist.github.com/615896', :full_screen => false)