The Cross Platform Reference Application is a multi platform, QT-based application built on top of the QT library and the HOOPS/3DGS, HOOPS/MVO and HOOPS/QT components of the HOOPS 3D Application Framework (HOOPS/3DAF). 
The application source code is located in the /demo/qt/qthoopsrefapp directory of your installation, while the executable is located in the /bin directory. 
This application is intended as a demonstration of the power of the HOOPS 3D Product Suite. As such, it serves as a reference architecture from which developers may extend and build their own CAD/CAM/CAE applications.  For more information about the architecture of the Part Viewers and how to license the framework components to build custom CAD/CAM/CAE application please contact info@techsoft3d.com.