Bilkent University
Department of Computer Engineering


Interacting With Terrain


Adil Yalçın
MSc. Student
Computer Engineering Department
Bilkent University

The applications of computer graphics raise new expectations, such as realistic rendering, real-time dynamic scenes, physically correct simulations, modeling and interaction with generated images. The aim of the studies to be presented are to investigate the above problems from a perspective looking at terrains. The most important property of the common terrain representation, heightfield or heightmap, is that it is an extended 2D model and this property is exploited in the methods. The solutions are proposed to enable real- time interaction and utilizes recent graphics hardware capabilities to provide efficient computation and real-time results. The main focus is on physical interaction, in which the terrain is deformed as result of collisions with other generic triangular objects. Such a scalable physical interaction method increases the fidelity of the virtual environments in which a terrain structure is used. The proposed physical interaction method is also extended with modeling and visualization techniques and editing interactions. Lastly, a brief overview of the 3D rendering engine currently being developed in Bilkent University, OpenREng, will be given, as the underlying graphics layer of the implementation.


DATE: 16 November, 2009, Monday @ 15:40