G
Gregory J. Ward
Researcher at Lawrence Berkeley National Laboratory
Publications - 19
Citations - 3325
Gregory J. Ward is an academic researcher from Lawrence Berkeley National Laboratory. The author has contributed to research in topics: Rendering (computer graphics) & Global illumination. The author has an hindex of 11, co-authored 18 publications receiving 3186 citations.
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Proceedings ArticleDOI
Measuring and modeling anisotropic reflection
TL;DR: A new device for measuring the spatial reflectancedistributions of surfaces is introduced, along with a new mathematical model of sniaorropic reflectance, which is both simple and accurate, permitting efficient reflectance data reduction in production.
Proceedings ArticleDOI
The RADIANCE lighting simulation and rendering system
TL;DR: A physically-based rendering system tailored to the demands of lighting design and architecture using a light-backwards ray-tracing method with extensions to efficiently solve the rendering equation under most conditions.
Proceedings ArticleDOI
A ray tracing solution for diffuse interreflection
TL;DR: A Monte Carlo technique computes the indirect contributions to illuminance at locations chosen by the rendering process, which speeds the process and provides a natural limit to recursion.
Book ChapterDOI
Comparing Real and Synthetic Images: Some Ideas About Metrics
TL;DR: Numerical techniques for comparing real and synthetic luminance images are explored and components of a perceptually based metric using ideas from the image compression literature are introduced.
Book ChapterDOI
Adaptive Shadow Testing for Ray Tracing
TL;DR: This work presents a simple technique for improving the efficiency of ray tracing in scenes with many light sources, which requires very littie storage, and produces no visible artifacts.