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Real-time atmospheric scattering using the OpenGL API

May 07, 2004

This paper and OpenGL API demo with source shows how to to real-time atmospheric scattering. It is based on the SIGGRAPH93 publication: “Display of The Earth Taking into Account Atmospheric Scattering”, which is a mathematically-heavy non-realtime algorithm. The demo focuses on optimizations that allow the algorithm to run in real-time without creating large lookup buffers, which allows almost all of the scattering coefficients to be changed quickly at run-time.