Efficient Adaptive Deferred Shading with Hardware Scatter Tiles
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Date
2020
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
ACM
Abstract
Adaptive shading is an effective mechanism for reducing the number of shaded pixels to a subset of the image resolution with minimal impact on final rendering quality. We present a new scheduling method based on on-chip tiles that, along with relatively minor modifications to the GPU architecture, provides efficient hardware support. As compared to software implementations on current hardware using compute shaders, our approach dramatically reduces memory bandwidth requirements, thereby significantly improving performance and energy use. We also introduce the concept of a fragment pre-shader for programmatically controlling when a fragment shader is invoked, and describe advanced techniques for utilizing our approach to further reduce the number of shaded pixels via temporal filtering, or to adjust rendering quality to maintain stable framerates.
Description
@inproceedings{10.1145:3406184,
booktitle = {Proceedings of the ACM on Computer Graphics and Interactive Techniques},
editor = {Yuksel, Cem and Membarth, Richard and Zordan, Victor},
title = {{Efficient Adaptive Deferred Shading with Hardware Scatter Tiles}},
author = {Mallett, Ian and Yuksel, Cem and Seiler, Larry},
year = {2020},
publisher = {ACM},
ISSN = {2577-6193},
ISBN = {},
DOI = {10.1145/3406184}
}