A High-Resolution Compression Scheme for Ray Tracing Subdivision Surfaces with Displacement

Beitrag bei einer Tagung
(Originalarbeit)


Details zur Publikation

Autor(en): Lier A, Martinek M, Stamminger M, Selgrad K
Verlag: ACM
Verlagsort: New York, NY, USA
Jahr der Veröffentlichung: 2018
Band: 1
Heftnummer: 2
Tagungsband: Proceedings of the ACM on Computer Graphics and Interactive Techniques, Volume 1 Issue 2, August 2018
ISSN: 2577-6193
Sprache: Englisch


Abstract

Subdivision surfaces, especially with displacement, are one of the key
modeling primitives used in high-quality rendering environments, such
as, e.g., movie production. While their use easily maps to
rasterization-based frameworks, they pose a significant challenge for
ray tracing environments. This is due to the fact that incoherent access
patterns require storing or caching fully tessellated and displaced
meshes for efficient intersection computations. In this paper we use a
two-tier hierarchy built on a scene's patches. It relies on compressed
and quantized bounding volumes on the second tier to reduce the size of
the BVH itself. Based on this acceleration structure, we propose a
quantized, compact approximation for leaf nodes while being faithful to
the underlying patch-geometry. We build on recent advances and present a
system that shows competitive performance regarding run-time speed,
which is close to full-resolution pre-tessellation methods as well as to
previous compression approaches. Ultimately, we provide strong
compression of up to a factor of 5:1 compared to state-of-the-art
methods while maintaining high geometrical fidelity surpassing similarly
compact approximations and getting close to uncompressed geometry.


FAU-Autoren / FAU-Herausgeber

Lier, Alexander
Lehrstuhl für Informatik 9 (Graphische Datenverarbeitung)
Martinek, Magdalena
Lehrstuhl für Informatik 9 (Graphische Datenverarbeitung)
Stamminger, Marc Prof. Dr.
Lehrstuhl für Informatik 9 (Graphische Datenverarbeitung)


Zitierweisen

APA:
Lier, A., Martinek, M., Stamminger, M., & Selgrad, K. (2018). A High-Resolution Compression Scheme for Ray Tracing Subdivision Surfaces with Displacement. In Proceedings of the ACM on Computer Graphics and Interactive Techniques, Volume 1 Issue 2, August 2018. Vancouver, CA: New York, NY, USA: ACM.

MLA:
Lier, Alexander, et al. "A High-Resolution Compression Scheme for Ray Tracing Subdivision Surfaces with Displacement." Proceedings of the High-Performance Graphics 2018, Vancouver New York, NY, USA: ACM, 2018.

BibTeX: 

Zuletzt aktualisiert 2018-29-08 um 18:38