Title
Real-time global illumination using precomputed light field probes.
Abstract
We introduce a new data structure and algorithms that employ it to compute real-time global illumination from static environments. Light field probes encode a scene's full light field and internal visibility. They extend current radiance and irradiance probe structures with per-texel visibility information similar to a G-buffer and variance shadow map. We apply ideas from screen-space and voxel cone tracing techniques to this data structure to efficiently sample radiance on world space rays, with correct visibility information, directly within pixel and compute shaders. From these primitives, we then design two GPU algorithms to efficiently gather real-time, viewer-dependent global illumination onto both static and dynamic objects. These algorithms make different tradeoffs between performance and accuracy. Supplemental GLSL source code is included.
Year
DOI
Venue
2017
10.1145/3023368.3023378
I3D
Field
DocType
Citations 
Data structure,Computer vision,Visibility,Computer graphics (images),Computer science,Cone tracing,Shadow mapping,Light field,Artificial intelligence,Global illumination,Shader,Radiance
Conference
6
PageRank 
References 
Authors
0.55
19
4
Name
Order
Citations
PageRank
Morgan Mcguire175254.30
Mike Mara260.55
Derek Nowrouzezahrai380154.49
David Luebke42196140.84