text: var setup = require('./setup')
  
  var program, uScreenSize
  
  exports.init = function(gl) {
    program = setup(gl)
    uScreenSize = gl.getUniformLocation(program, 'uScreenSize')
  }
  
  exports.draw = function(gl) {
    gl.viewport(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight)
    gl.clearColor(0,0,0,1)
    gl.clear(gl.COLOR_BUFFER_BIT)
  
    gl.useProgram(program)
    gl.uniform2f(uScreenSize, gl.drawingBufferWidth, gl.drawingBufferHeight)
  
    gl.drawArrays(gl.LINE_LOOP, 99, 32)
    gl.drawArrays(gl.TRIANGLE_FAN, 131, 5)
    gl.drawArrays(gl.LINES, 35, 64)
    gl.drawArrays(gl.POINTS, 3, 32)
    gl.drawArrays(gl.TRIANGLES, 0, 3)
  }
  