A 3D Multiresolution rendering engine for PDA devices
Claudio Zunino, Fabrizio Lamberti, Andrea Sanna · PORTO Publications Open Repository TOrino (Politecnico di Torino) · 2003
One of the main goal in the context of computer graphics is to create and display scenes as much realistic as possible, but realism requires complex and highly detailed models that can strongly affect the interactivity of the user with the scene. On the other hand, a new category of devices, known as Personal Digital Assistant (PDA), have been quickly spreading since end of the nineties. PDAs cannot still provide a graphics capacity such as last generation PCs, however the request for quality graphics for portable devices is one of the most new, important and attractive field of research in this area. The paper proposes a continuous multiresolution rendering engine for PDAs, based on the PocketGL library, able to dynamically adjust the level of detail of objects according to a frame rate value set from the user. The frame rate is considered as an “objective function” that determines both the quality of the scene and the interaction capability; objects nearer the user are represented by means of a larger number of polygons with respect farther elements in order to guarantee the best trade-off between quality and rendering frame rate.