anchor.diff:                    ''';
     container.nodes.add( info );
   
  -  camera = new PerspectiveCamera( 60, window.innerWidth / window.innerHeight, 1, 1000 );
  +  camera = new PerspectiveCamera( 60.0, window.innerWidth / window.innerHeight, 1.0, 1000.0 );
     camera.position.z = 500.0;
   
     controls = new TrackballControls( camera );
  
positive.code: 
    // Pyramids
  
    geometry = new CylinderGeometry( 0, 10, 30, 4, 1 );
    material = new MeshLambertMaterial( color: 0xffffff, shading: FlatShading );
  
    var rnd = new Math.Random();
  
negative.code: import 'dart:html';
  import 'dart:math' as Math;
  import 'package:three/three.dart';
  import 'package:three/extras/controls/trackball_controls.dart';
  
  Element container;
  
  PerspectiveCamera camera;
  Scene scene;
  WebGLRenderer renderer;
  
  TrackballControls controls;
  
  void main() {
    init();
  