High-Quality Spatio-Temporal Rendering using Semi-Analytical Visibility
(2011) 41th International Conference on Computer Graphics and Interactive Techniques, 2014 30(4). p.1-54- Abstract
- We present a novel visibility algorithm for rendering motion blur with per-pixel anti-aliasing. Our algorithm uses a number of line samples over a rectangular group of pixels, and together with the time dimension, a two-dimensional spatio-temporal visibility problem needs to be solved per line sample. In a coarse culling step, our algorithm first uses a bounding volume hierarchy to rapidly remove geometry that do not overlap with the current line sample. For the remaining triangles, we approximate each triangle's depth function, along the line and along the time dimension, with a number of patch triangles. We resolve for the final color using an analytical visibility algorithm with depth sorting, simple occlusion culling, and clipping.... (More)
- We present a novel visibility algorithm for rendering motion blur with per-pixel anti-aliasing. Our algorithm uses a number of line samples over a rectangular group of pixels, and together with the time dimension, a two-dimensional spatio-temporal visibility problem needs to be solved per line sample. In a coarse culling step, our algorithm first uses a bounding volume hierarchy to rapidly remove geometry that do not overlap with the current line sample. For the remaining triangles, we approximate each triangle's depth function, along the line and along the time dimension, with a number of patch triangles. We resolve for the final color using an analytical visibility algorithm with depth sorting, simple occlusion culling, and clipping. Shading is decoupled from visibility, and we use a shading cache for efficient reuse of shaded values. In our results, we show practically noise-free renderings of motion blur with high-quality spatial anti-aliasing and with competitive rendering times. We also demonstrate that our algorithm, with some adjustments, can be used to accurately compute motion blurred ambient occlusion. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2154957
- author
- Gribel, Carl Johan LU ; Barringer, Rasmus LU and Akenine-Möller, Tomas LU
- organization
- publishing date
- 2011
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- analytical visibility, anti-aliasing, ambient occlusion, motion blur
- host publication
- ACM Transactions on Graphics
- editor
- Hoppe, Hugues
- volume
- 30
- issue
- 4
- pages
- 11 pages
- publisher
- Association for Computing Machinery (ACM)
- conference name
- 41th International Conference on Computer Graphics and Interactive Techniques, 2014
- conference location
- Vancouver, Canada
- conference dates
- 2014-08-10 - 2014-08-14
- external identifiers
-
- wos:000297216400028
- scopus:80051878089
- ISSN
- 0730-0301
- DOI
- 10.1145/2010324.1964949
- language
- English
- LU publication?
- yes
- id
- b9117209-f616-4041-a895-dbcd629e5479 (old id 2154957)
- alternative location
- http://fileadmin.cs.lth.se/graphics/research/papers/2011/spatiotemp/
- date added to LUP
- 2016-04-01 12:58:39
- date last changed
- 2022-04-13 22:34:05
@inproceedings{b9117209-f616-4041-a895-dbcd629e5479,
abstract = {{We present a novel visibility algorithm for rendering motion blur with per-pixel anti-aliasing. Our algorithm uses a number of line samples over a rectangular group of pixels, and together with the time dimension, a two-dimensional spatio-temporal visibility problem needs to be solved per line sample. In a coarse culling step, our algorithm first uses a bounding volume hierarchy to rapidly remove geometry that do not overlap with the current line sample. For the remaining triangles, we approximate each triangle's depth function, along the line and along the time dimension, with a number of patch triangles. We resolve for the final color using an analytical visibility algorithm with depth sorting, simple occlusion culling, and clipping. Shading is decoupled from visibility, and we use a shading cache for efficient reuse of shaded values. In our results, we show practically noise-free renderings of motion blur with high-quality spatial anti-aliasing and with competitive rendering times. We also demonstrate that our algorithm, with some adjustments, can be used to accurately compute motion blurred ambient occlusion.}},
author = {{Gribel, Carl Johan and Barringer, Rasmus and Akenine-Möller, Tomas}},
booktitle = {{ACM Transactions on Graphics}},
editor = {{Hoppe, Hugues}},
issn = {{0730-0301}},
keywords = {{analytical visibility; anti-aliasing; ambient occlusion; motion blur}},
language = {{eng}},
number = {{4}},
pages = {{1--54}},
publisher = {{Association for Computing Machinery (ACM)}},
title = {{High-Quality Spatio-Temporal Rendering using Semi-Analytical Visibility}},
url = {{http://dx.doi.org/10.1145/2010324.1964949}},
doi = {{10.1145/2010324.1964949}},
volume = {{30}},
year = {{2011}},
}