PBR In Practice

By Joe “EarthQuake” WilsonThis tutorial will cover the basics of art content creation, some of the reasoning behind various PBR standards (without getting too technical), and squash some common misconceptions. Jeff Russell wrote an excellent tutorial on the Theory of Physically Based Rendering, which I highly recommend reading first. Additional help from Jeff Russell, Teddy Bergsman, and Ryan Hawkins. Special thanks to Wojciech Klimas and Joeri Vromman for the extra insight and awesome art. Contents A New Standard Fast becoming a standard in the games industry due to increased computing power and the universal need for art content standardization, physically based rendering aims to redefine how we create and render art. Physically based rendering (PBR) refers to the concept of using realistic shading/lighting models along with measured surface values to accurately represent real-world materials. Beyond rendering quality, consistency is the biggest reason to use measured values. PBR FAQs

Unreal Engine | Physically Based Materials This document is designed to help those who need to quickly get up to speed in Unreal Engine 4's physically based Materials system. It assumes that you are at least somewhat familiar with Material creation in the Unreal Engine, at least with Unreal Engine 3 or later. If you are completely new to Materials in Unreal, you may prefer to start with the Essential Material Concepts page. Our goal here is to give you just the "plain-language essentials" on how to make standard Materials using this system, as it can be confusing even for those with experience in previous Unreal Engine iterations. We will only be focusing on those aspects of Materials that are involved with our physically based approach. What Does Physically Based Mean? Physically based shading means we approximate what light actually does as opposed to approximating what we intuitively think it should do. For these reasons and more, Unreal Engine 4 has adopted a new physically based Material and shading model. Base Color Specular

Physically Based Rendering: From Theory to Implementation - Matt Pharr, Greg Humphreys Physically Based Rendering, Second Edition describes both the mathematical theory behind a modern photorealistic rendering system as well as its practical implementation. A method known as "literate programming" combines human-readable documentation and source code into a single reference that is specifically designed to aid comprehension. The result is a stunning achievement in graphics education. Through the ideas and software in this book, you will learn to design and employ a full-featured rendering system for creating stunning imagery. This new edition greatly refines its best-selling predecessor by streamlining all obsolete code as well as adding sections on parallel rendering and system design; animating transformations; multispectral rendering; realistic lens systems; blue noise and adaptive sampling patterns and reconstruction; measured BRDFs; and instant global illumination, as well as subsurface and multiple-scattering integrators.