Adaptive texture space shading for stochastic rendering
(2014) In Computer Graphics Forum 33(2). p.341-350- Abstract
- When rendering effects such as motion blur and defocus blur, shading can become very expensive if done in a naive way, i.e. shading each visibility sample. To improve performance, previous work often decouple shading from visibility sampling using shader caching algorithms. We present a novel technique for reusing shading in a stochastic rasterizer. Shading is computed hierarchically and sparsely in an object-space texture, and by selecting an appropriate mipmap level for each triangle, we ensure that the shading rate is sufficiently high so that no noticeable blurring is introduced in the rendered image. Furthermore, with a two-pass algorithm, we separate shading from reuse and thus avoid GPU thread synchronization. Our method runs at... (More)
- When rendering effects such as motion blur and defocus blur, shading can become very expensive if done in a naive way, i.e. shading each visibility sample. To improve performance, previous work often decouple shading from visibility sampling using shader caching algorithms. We present a novel technique for reusing shading in a stochastic rasterizer. Shading is computed hierarchically and sparsely in an object-space texture, and by selecting an appropriate mipmap level for each triangle, we ensure that the shading rate is sufficiently high so that no noticeable blurring is introduced in the rendered image. Furthermore, with a two-pass algorithm, we separate shading from reuse and thus avoid GPU thread synchronization. Our method runs at real-time frame rates and is up to 3 x faster than previous methods. This is an important step forward for stochastic rasterization in real time. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4609746
- author
- Andersson, Magnus LU ; Hasselgren, J. ; Toth, R. and Akenine-Möller, Tomas LU
- organization
- publishing date
- 2014
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Computer Graphics Forum
- volume
- 33
- issue
- 2
- pages
- 341 - 350
- publisher
- Wiley-Blackwell
- external identifiers
-
- wos:000337543000035
- scopus:84901824796
- ISSN
- 1467-8659
- DOI
- 10.1111/cgf.12303
- language
- English
- LU publication?
- yes
- id
- 543fd9ee-b932-4022-bba1-6fcbfb455542 (old id 4609746)
- date added to LUP
- 2016-04-01 11:09:08
- date last changed
- 2022-04-05 00:33:16
@article{543fd9ee-b932-4022-bba1-6fcbfb455542,
abstract = {{When rendering effects such as motion blur and defocus blur, shading can become very expensive if done in a naive way, i.e. shading each visibility sample. To improve performance, previous work often decouple shading from visibility sampling using shader caching algorithms. We present a novel technique for reusing shading in a stochastic rasterizer. Shading is computed hierarchically and sparsely in an object-space texture, and by selecting an appropriate mipmap level for each triangle, we ensure that the shading rate is sufficiently high so that no noticeable blurring is introduced in the rendered image. Furthermore, with a two-pass algorithm, we separate shading from reuse and thus avoid GPU thread synchronization. Our method runs at real-time frame rates and is up to 3 x faster than previous methods. This is an important step forward for stochastic rasterization in real time.}},
author = {{Andersson, Magnus and Hasselgren, J. and Toth, R. and Akenine-Möller, Tomas}},
issn = {{1467-8659}},
language = {{eng}},
number = {{2}},
pages = {{341--350}},
publisher = {{Wiley-Blackwell}},
series = {{Computer Graphics Forum}},
title = {{Adaptive texture space shading for stochastic rendering}},
url = {{http://dx.doi.org/10.1111/cgf.12303}},
doi = {{10.1111/cgf.12303}},
volume = {{33}},
year = {{2014}},
}