Deep G-Buffers for Stable Global Illumination Approximation

Mara, Michael; McGuire, Morgan; Nowrouzezahrai, Derek; Luebke, David

Deep G-Buffers for Stable Global Illumination Approximation

Files

087-098.pdf (45.9 MB)

highergammapaper.pdf (49.38 MB)

highergammasupplemental.pdf (12.48 MB)

supplemental.pdf (13.98 MB)

mara2016deepgbuffer.mp4 (89.95 MB)

Date

2016

Authors

Mara, Michael
McGuire, Morgan
Nowrouzezahrai, Derek
Luebke, David

Publisher

The Eurographics Association

Abstract

We introduce a new hardware-accelerated method for constructing Deep G-buffers that is 2x-8x faster than the previous depthpeeling method and produces more stable results. We then build several high-performance shading algorithms atop our representation, including dynamic diffuse interreflection, ambient occlusion (AO), and screen-space mirror reflection effects. Our construction method is order-independent, guarantees a minimum separation between layers, operates in a (small) bounded memory footprint, and does not require per-pixel sorting. Moreover, addressing the increasingly expensive cost of pre-rasterization, our approach requires only a single pass over the scene geometry. We include the pseudocode for our Deep G-buffer construction in the paper and the full source code of our technique in our supplemental document.

        @inproceedings{10.2312:hpg.20161195
,
booktitle = {Eurographics/ ACM SIGGRAPH Symposium on High Performance Graphics
},
editor = {Ulf Assarsson and Warren Hunt
},
title = {{Deep G-Buffers for Stable Global Illumination Approximation
}},
author = {Mara, Michael and 
McGuire, Morgan and 
Nowrouzezahrai, Derek and 
Luebke, David
},
year = {2016
},
publisher = {The Eurographics Association
},
ISSN = {2079-8679
},
ISBN = {978-3-03868-008-6
},
DOI = {10.2312/hpg.20161195
}
}