1. MICROSOFT. 2002; DirectX9 SDK. http://www.microsoft.com/DirectX.
2. Krüger J, Westermann R. Acceleration techniques for GPU-based volume rendering. In Proceedings of IEEE Visualization '03, 2003; 287-292.
3. Roettger S, Guthe S, Weiskopf D, Ertl T. Smart hardware-accelerated volume rendering. In Proceedings of EG/IEEE TCVG Symposium on Visualization '03, 2003; 231-238.
4. Scharsach H. Advanced GPU raycasting, In Proceedings of Central European Seminar on Computer Graphics '05, 2005; 69-76.
5. MICROSOFT. 2007; DirectX10 SDK. http://www.microsoft.com/DirectX.