Seminar Announcement

Sung-Eui Yoon

Data Analysis Group, Center for Applied Scientific Computing (CASC)

"R-LODs: Fast LOD-based Ray Tracing of Massive Models"

Christian Lauterbach, Dinesh Manocha

Date: Wednesday, July 26, 2006
Time: 11:00 am.
Place: Building 453, Room 1001 (Armadillo Room)
P Clearance / Unclassified
Contact: Bronis de Supinski (CASC) (925/422-1062) or Erica Dannenberg (925/423-2167)

Sponsored by: ISCR and CASC.

drastic simplifications of the model and the LODs are well integrated with the kd-tree data structure. We introduce a simple and efficient LOD metric to bound the error for primary and secondary rays. The LOD representation has small runtime overhead and our algorithm can be combined with ray coherence techniques and cache-coherent layouts to improve the performance. In practice, the use of LODs can alleviate aliasing artifacts and improve memory coherence. We implement our algorithm on both 32-bit and 64-bit machines and are able to achieve up to 2-20 times improvement in frame rate of rendering models consisting of tens or hundreds of millions of triangle with little loss in image quality.

UCRL-ABS-223234

Email: yoon2@llnl.gov

Speaker's web page: https://computation.llnl.gov/casc/people/yoon/

Institution web page: https://computation.llnl.gov/casc/groups/casc-dag.html