def setup
  createCanvas(100, 100, WEBGL)
  # setAttributes('antialias', true)
  frustum(-0.1, 0.1, -0.1, 0.1, 0.1, 200)
end

def draw
  background(200)
  # orbitControl
  normalMaterial

  rotateY(-0.2)
  rotateX(-0.3)
  push do
    translate(-15, 0, sin(frameCount / 30) * 25)
    box(30)
  end
  push do
    translate(15, 0, sin(frameCount / 30 + PI) * 25)
    box(30)
  end
end