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Ray Tracing: A Tool for All

:	Jon Peddie
:	Ray Tracing: A Tool for All
:	Springer-Verlag
:	9783030174903
:	1
:	CHF 39.70
:

:	Anwendungs-Software
:	English

:	381
:	Wasserzeichen/DRM
:	PC/MAC/eReader/Tablet
:	PDF

This is the first book to offer a comprehensive overview for anyone wanting to understand the benefits and opportunities of ray tracing, as well as some of the challenges, without having to learn how to program or be an optics scientist.

It demystifies ray tracing and brings forward the need and benefit of using ray tracing throughout the development of a film, product, or building - from pitch to prototype to marketing.

Ray Tracing and Rendering clarifies the difference between conventional faked rendering and physically correct, photo-realistic ray traced rendering, and explains how programmer's time, and backend compositing time are saved while producing more accurate representations with 3D models that move.

Often considered an esoteric subject the author takes ray tracing out of the confines of the programmer's lair and shows how all levels of users from concept to construction and sales can benefit without being forced to be a practitioner.

It treats both theoretical and practical aspects of the subject as well as giving insights into all the major ray tracing programs and how many of them came about.

It will enrich the readers' understanding of what a difference an accurate high-fidelity image can make to the viewer - our eyes are incredibly sensitive to flaws and distortions and we quickly disregard things that look phony or unreal. Such dismissal by a potential user or customer can spell disaster for a supplier, producer, or developer. If it looks real it will sell, even if it is a fantasy animation.

Ray tracing is now within reach of every producer and marketeer, and at prices one can afford, and with production times that meet the demands of today's fast world.

Jon Peddie is a pioneer of the graphics industry and lectures around the world on topics pertaining to graphics technology, augmented reality and the emerging trends in digital media technology. Recently named one of the most influential analysts who regularly advises investors in the GLG network, he is frequently quoted in trade and business publications, was the former president of Siggraph Pioneers, and he is also the author of several books including The History of Visual Magic in Computers and < >Augmented Reality. Jon Peddie was recently honored by the CAD Society with a lifetime achievement award.

	Foreword I	5
	Foreword II	7
	Acknowledgements	9
	Contents	11
	List of Figures	16
	List of Tables	26
	1 Preface	27
	Abstract	27
	1.1 About the Cover	29
	1.2 Terminology and Definitions	30
	2 Introduction	32
	Abstract	32
	2.1 Who Needs It?	33
	2.2 Ray Tracing Isn’t New	34
	2.3 A Little History	36
	2.4 Ray Tracing not New	37
	2.4.1 From Humble Beginnings	39
	2.5 Realism, Accuracy, and Functionality	40
	2.5.1 Three Types of Realism in Computer Graphics	41
	2.5.1.1 Monte Carlo	43
	2.5.2 Stylistic Versus Photorealistic	44
	2.5.2.1 Sometimes You Can’t See It	45
	2.5.2.2 The Payoff of Ray Tracing	46
	2.5.2.3 The Need for Ray Tracing	46
	2.6 Technical Papers and Books	48
	2.7 Material Libraries Critical	49
	2.8 Rendering Becomes a Function of Price	49
	2.9 Shortcuts and Semiconductors—The Need for Speed	50
	2.10 Challenges	52
	References	52
	3 The Rendering Industry	53
	Abstract	53
	3.1 Leading Companies Rendering in AEC and Product Design	54
	3.2 The Future	55
	4 The Continuum	56
	Abstract	56
	4.1 The Rendering Equation	58
	4.2 Scanline Rendering	59
	4.2.1 Z-Buffering	60
	4.2.2 Painter’s Algorithm	61
	4.3 Ray Tracing	62
	4.3.1 Path Tracing	69
	4.3.2 The Difference Between Path Tracing and Ray Tracing	70
	4.3.3 Noise in Ray Tracing	70
	4.3.4 Global Illumination	72
	4.3.5 The Difference Between Ray Tracing and Ray Casting	72
	4.3.6 Recursive Ray Tracing	75
	4.4 Photon Mapping	76
	4.5 Brute Force	78
	4.6 Radiosity	79
	4.7 Light-Field Rendering	80
	4.7.1 Voxels	82
	4.8 Problems Ray Tracing Doesn’t Solve	84
	4.8.1 Photorealism	84
	4.8.2 Surface Complexity	85
	4.8.3 Scale	85
	4.9 Summary	86
	References	87
	5 Work Flow and Material Standards	88
	Abstract	88
	5.1 Biased Versus Unbiased	88
	5.1.1 Biased Versus Consistent	89
	5.1.2 Radiosity	89
	5.1.3 Rasterization	90
	5.2 Importance of Material Library	90
	5.2.1 Standards (USPs, OSL, Etc.)	92
	5.2.2 Physically Based Rendering	94
	5.2.2.1 Physically Accurate?	94
	5.2.2.2 Free PBR Sources	94
	5.2.2.3 CC0 Textures	94
	5.2.2.4 Cgbookcase	95
	5.2.2.5 Free PBR	95
	5.2.2.6 Khronos	96
	5.2.2.7 Textures.Com	96
	5.2.3 Allegorithmic’s Substance Designer	96
	5.2.4 Everyday Material Collection	98
	5.2.5 MaterialX	99
	5.2.6 Nvidia’s MDL	99
	5.2.7 X-Rite’s AxF	102
	5.3 Quality Issues	103
	5.3.1 Skin and Subsurface Scattering	104
	5.3.2 Variance-Based Adaptive Sampling	106
	5.3.3 Hybrid	107
	5.3.4 Summary	107
	5.4 Importance of HDR Monitors	108
	5.5 Importance of Full-Color Printers	112
	References	113
	6 Applications of Ray Tracing	114
	Abstract	11