Credits IEQc8.1 IEQc8.1 IEQc8.1 IEQc8.1 IEQc8.1 IEQc8.1 IEQc8.1 IEQc8.1 IEQc8.1 IEQc8.1 IEQc8.1 IEQc8.1 IEQc8.1 IEQc8.1 IEQc8.1 IEQc8.1 EQc8.1 SketchUp is used to create 3-D graphic models that can help in your daylighting analysis and documentation. Resource type Software Tools Link http://sketchup.google.com/