't normalize the data
  var stride = 0;        // 0 = move forward size * sizeof(type) each iteration to get the next position
  var offset = 0;        // start at the beginning of the buffer
  gl.vertexAttribPointer(
      positionAttributeLocation, size, type, normalize, stride, offset);

  // create the normalr buffer, make it the current ARRAY_BUFFER
  // and copy in the normal values
  var normalBuffer = gl.createBuffer();
  gl.bindBuffer(gl.ARRAY_BUFFER, normalBuffer);
  setNormals(gl);

  // Turn on 