NDLI: Interactive particle tracing in dynamic scenes consisting of NURBS surfaces

Content Provider	IEEE Xplore Digital Library
Author	Barz, J. Abert, O. Muller, S.
Copyright Year	2008
Description	Author affiliation: Univ. Koblenz-Landau, Koblenz (Barz, J.; Abert, O.; Muller, S.)
Abstract	Simulating the distribution of light in virtual environments to generate photorealistic images has become increasingly important for numerous applications in the field of computer graphics. Nevertheless, the off-line rendering of special effects for the film industry or visualizations for education, architecture, and engineering quite often takes minutes or even hours for a single frame. Especially in the context of dynamic scenes with freeform surfaces, simulating global illumination with interactive frame rates is very valuable; however, still challenging. Exploiting temporal coherences in lighting simulations yields a promising and feasible solution to optimize computing time by selectively updating scene regions with outdated illumination. We present a novel particle tracing method using multidimensional Halton sequences on top of direct ray tracing of dynamic scenes consisting of NURBS surfaces. Interactive frame rates are delivered without triangulation by carefully optimized intersection tests with NURBS surfaces and the support of multi-core processors. The implementation benefits from parallelization with SIMD operations due to quasi-random sampling of highly coherent particle packets with Halton numbers. Geometrical changes in the scene are handled by selectively deleting and retracing the affected particles yielding up to 75% faster particle tracing in comparison to computing a complete new lighting simulation. Finally, our method supports real-time adjustments of physical quantities, e.g. the spectral distribution of light spectra or surface reflectances.
Starting Page	139
Ending Page	146
File Size	1771612
Page Count	8
File Format	PDF
ISBN	9781424427413
DOI	10.1109/RT.2008.4634634
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-08-09
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	ray tracing Global illumination dynamic scenes Surface topography Indexes I.3.5 [Computer Graphics]: Computational Geometry and Object Modeling—Curve, surface, solid, and object representations Photonics Light sources NURBS Surface reconstruction interactive rendering Lighting photon mapping Ray tracing freeform surfaces I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism—Animation
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Direct and Fast Ray Tracing of NURBS Surfaces

Interactive Ray Tracing of Arbitrary Implicits with SIMD Interval Arithmetic

Adaptive Spatial Sample Caching

Towards interactive global illumination effects via sequential Monte Carlo adaptation

GPU smoothing of quad meshes

Photon Streaming for Interactive Global Illumination in Dynamic Scenes

Interactive global illumination in dynamic scenes

Interactive global illumination in dynamic scenes

A lighting model for fast rendering of forest ecosystems

Interactive particle tracing in dynamic scenes consisting of NURBS surfaces

Similar Documents

Direct and Fast Ray Tracing of NURBS Surfaces

Interactive Ray Tracing of Arbitrary Implicits with SIMD Interval Arithmetic

Adaptive Spatial Sample Caching

Towards interactive global illumination effects via sequential Monte Carlo adaptation

GPU smoothing of quad meshes

Photon Streaming for Interactive Global Illumination in Dynamic Scenes

Interactive global illumination in dynamic scenes

Interactive global illumination in dynamic scenes

A lighting model for fast rendering of forest ecosystems

Interactive particle tracing in dynamic scenes consisting of NURBS surfaces