Authors:
Francisco Ramos
;
Jesus Gumbau
and
Miguel Chover
Affiliation:
University Jaume I of Castellon, Spain
Keyword(s):
Real-time Rendering, Multiresolution Model, Level of Detail, Triangle Strips, Hardware Acceleration.
Abstract:
Visualization of large 3D scenes is a problem often solved by means of multiresolution modeling or level of detail. In this paper, we present a uniform resolution model that noticeably improves existing models, in terms of storage and visualization cost. The model is entirely based on optimized hardware primitives, triangle strips. Management of triangle strips coherence, on a multiresolution mesh, is key to achieving optimum performance. This model is able to take advantage of coherence in a software level as well as directly on the graphics hardware, integrating part of the model in that hardware. Use of stripification techniques, oriented to exploit vertex cache, has been taken into account to minimize vertex reprocessing. Comparisons to existing multiresolution model implementations show improvements of approximately 25% in storage space cost, 40% in level-of-detail extraction cost and visualization as much as 5 times better by applying hardware acceleration techniques.