Paper Info
Title
Adaptive undersampling for efficient mobile ray tracing.
Abstract
Aiming to develop an efficient ray tracer for a mobile platform, we present an adaptive undersampling method that enhances the rendering speed by effectively replacing expensive ray-tracing operations with cheap interpolation whenever possible. Our method explores both object- and image-space information gathered during ray tracing to detect possibly problematic pixels. Rays are fired only for these pixels. We also present a postcorrection algorithm that minimizes annoying artifacts inevitably caused by undersampling. Our implementation on a mobile GPU demonstrates that this method can speed up the rendering computation significantly, while retaining almost the same visual quality of the rendering.
Year
DOI
Venue
2016
10.1007/s00371-016-1251-y
The Visual Computer
Keywords
Field
DocType
Ray tracing, Mobile platform, Adaptive undersampling, Postcorrection, GPU algorithm
Computer vision,Computer graphics (images),Computer science,Ray tracing (graphics),Interpolation,Undersampling,Artificial intelligence,Pixel,Rendering (computer graphics),Speedup,Computation
Journal
Volume
Issue
ISSN
32
6-8
1432-2315
Citations 
PageRank 
References 
3
0.47
15
Authors
6
Name
Order
Citations
PageRank
Youngwook Kim131.49
Woong Seo2713.85
Yongho Kim3264.75
Yeong-Kyu Lim4208.39
Jae-Ho Nah513614.93
Insung Ihm636840.07