PBR Basics - a ten minute Guide for Qt developers
Sean Harmer
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Physically based rendering (PBR) emulates the interaction between light and materials and is a trend in real-time rendering. It offers developers more realistic computer generated imagery and is fast becoming a standard in the gaming world.
This paper, written in 2016 by Dr Sean Harmer, offers an exhilarating ten-minute guide to the essentials.