Tiled shading

Olsson, Ola and Assarsson, Ulf (2011) Tiled shading. Journal of Graphics, GPU, and Game Tools, 15 4: 235-251. doi:10.1080/2151237X.2011.621761

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Author Olsson, Ola
Assarsson, Ulf
Title Tiled shading
Journal name Journal of Graphics, GPU, and Game Tools   Check publisher's open access policy
ISSN 2151-2272
Publication date 2011-11-08
Sub-type Article (original research)
DOI 10.1080/2151237X.2011.621761
Open Access Status Not Open Access
Volume 15
Issue 4
Start page 235
End page 251
Total pages 17
Place of publication New York, NY United States
Publisher Taylor & Francis
Language eng
Formatted abstract
In this article we describe and investigate tiled shading. The tiled techniques, though simple, enable substantial improvements to both deferred and forward shading. Tiled Shading has been previously discussed only in terms of deferred shading (tiled deferred shading). We contribute a more detailed description of the technique, introduce tiled forward shading (a generalization of tiled deferred shading to also apply to forward shading), and a thorough performance evaluation.

Tiled Forward Shading has many of the advantages of deferred shading, for example, scene management and light management are decoupled. At the same time, unlike traditional deferred and tiled deferred shading, full screen antialiasing and transparency are trivially supported.

We also present a thorough comparison of the performance of tiled deferred, tiled forward, and traditional deferred shading. Our evaluation shows that tiled deferred shading has the least variable worst-case performance, and scales the best with faster GPUs. Tiled deferred shading is especially suitable when there are many light sources. Tiled forward shading is shown to be competitive for scenes with fewer lights, and is much simpler than traditional forward shading techniques.

Tiled shading also enables simple transitioning between deferred and forward shading. We demonstrate how this can be used to handle transparent geometry, frequently a problem when using deferred shading.

Demo source code is available online at the address provided at the end of this paper.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Information Technology and Electrical Engineering Publications
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Created: Thu, 28 Apr 2016, 15:23:37 EST by Ola Olsson on behalf of School of Information Technol and Elec Engineering