An Efficient Denoising Algorithm for Global Illumination
Michael Mara Morgan McGuire Benedikt Bitterli Wojciech Jarosz
In Proceedings of High Performance Graphics, 2017
Abstract
We propose a hybrid ray-tracing/rasterization strategy for real- time rendering enabled by a fast new denoising method. We factor global illumination into direct light at rasterized primary surfaces and two indirect lighting terms, each estimated with one path- traced sample per pixel. Our factorization enables efficient (biased) reconstruction by denoising light without blurring materials. We demonstrate denoising in under 10 ms per 1280×720 frame, compare results against the leading offline denoising methods, and include a supplement with source code, video, and data.
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