1. Interactive Data Visualization, Inc. Speedtree product homepage. Web page (2002), http://www.idvinc.com/speedtree/
2. Siggraph Course Notes CD-ROM. Advanced Graphics Programming Techniques Using OpenGL. Addison-Wesley (1998)
3. Pulli, K., Cohen, M., Duchamp, T., Hoppe, H., Shapiro, L., Stuetzle, W.: Viewbased rendering: Visualizing real objects from scanned range and color data. In: Eurographics Rendering Workshop (1997)
4. Meyer, A., Neyret, F., Poulin, P.: Interactive rendering of trees with shading and shadows. In: Eurographics Workshop on Rendering (2001)
5. Jakulin, A.: Interactive vegetation rendering with slicing and blending. In: de Sousa, A., Torres, J.C. (eds.) Proceedings of Eurographics (2000)