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1. Light and Color in the Outdoors
Sunday, Half Day, 8:30 am - 12:15 pm
Room 15 A-B
Level: Advanced

Simple and practical methods for daytime and night-time skylight illumination and the appearance of clouds, including approximate and practical methods for outdoor global illumination. Special focus: practical methods appropriate for real-time applications.

Prerequisites
A good understanding of basic physics. Familiarity with illumination models and light-surface interactions. Familiarity with modern graphics hardware.

Topics
Fundamentals of scattering, scattering in the atmosphere, appearance and modeling of daytime and night-time sky, aerial perspective, practical cloud illumination models, interactive methods for rendering sky and clouds, approximate methods for outdoor global illumination.

Organizer
Simon Premoze
University of Utah

Lecturers
Mark J. Harris
University of North Carolina at Chapel Hill

Nathaniel Hoffman
Naughty Dog, Inc.

AJ Preetham
ATI Research

Simon Premoze
University of Utah

Schedule

8:30 Introduction
Premoze
8:35 Background and Overview
Premoze
8:50 Global Illumination in Outdoors
Premoze
9:15 Skylight Modeling and Aerial Perspective
Preetham
10:05 Night Sky Illumination
Premoze
10:15 Break
10:30 Practical Global Illumination
Hoffman
11:20 Real-Time Rendering of Clouds
Harris
12:10 Summary, Questions and Answers
Harris, Hoffman, Preetham, and Premoze



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