Title: | Subpixel reconstruction antialiasing for ray tracing |
Authors: | Chiu, Y. F. Chen, Y. C. Chang, C. F. Lee, R. R. |
Citation: | Journal of WSCG. 2012, vol. 20, no. 3, p. 171-178. |
Issue Date: | 2012 |
Publisher: | Václav Skala - UNION Agency |
Document type: | článek article |
URI: | http://wscg.zcu.cz/WSCG2012/!_2012-Journal-Full-3.pdf http://hdl.handle.net/11025/1081 |
ISSN: | 1213–6972 (hardcopy) 1213–6980 (CD-ROM) 1213–6964 (on-line) |
Keywords: | vyhlazování hran;sledování paprsku;sledování cest |
Keywords in different language: | antialiasing;ray tracing;path tracing |
Abstract: | We introduce a practical antialiasing approach for interactive ray tracing and path tracing. Our method is inspired by the Subpixel Reconstruction Antialiasing (SRAA) method which separates the shading from visibility and geometry sampling to produce antialiased images at reduced cost. While SRAA is designed for GPU-based deferred shading renderer, we extend the concept to ray-tracing based applications. We take a hybrid rendering approach in which we add a GPU rasterization step to produce the depth and normal buffers with subpixel resolution. By utilizing those extra buffers, we are able to produce antialiased ray traced images without incurring performance penalty of tracing additional primary rays. Furthermore, we go beyond the primary rays and achieve antialiasing for shadow rays and reflective rays as well. |
Rights: | © Václav Skala - UNION Agency |
Appears in Collections: | Number 3 (2012) |
Please use this identifier to cite or link to this item:
http://hdl.handle.net/11025/1081
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