The ray tracer challenge : a test-driven guide to your first 3D renderer / Jamis Buck.

Format:

Book

Author/Creator:

Buck, Jamis, author.

Language:

English

Subjects (All):

Computer graphics.

Ray tracing algorithms.

Three-dimensional imaging--Data processing.

Three-dimensional imaging.

Physical Description:

1 online resource (286 pages) : illustrations

Edition:

1st edition

Place of Publication:

Raleigh, North Carolina : Pragmatic Bookshelf, 2019.

System Details:

text file

Summary:

Brace yourself for a fun challenge: build a photorealistic 3D renderer from scratch! It's easier than you think. In just a couple of weeks, build a ray-tracer that renders beautiful scenes with shadows, reflections, brilliant refraction effects, and subjects composed of various graphics primitives: spheres, cubes, cylinders, triangles, and more. With each chapter, implement another piece of the puzzle and move the renderer that much further forward. Do all of this in whichever language and environment you prefer, and do it entirely test-first, so you know it's correct. Recharge yourself with this project's immense potential for personal exploration, experimentation, and discovery. The renderer is a ray tracer, which means it simulates the physics of light by tracing the path of light rays around your scene. Each exciting chapter presents a bite-sized piece of the puzzle, building on earlier chapters and setting the stage for later ones. Requirements are given in plain English, which you translate into tests and code. When the project is complete, look back and realize you've built an entire system test-first! There's no research necessary -- all the necessary formulas and algorithms are presented and illustrated right here. Dive into intriguing topics from fundamental concepts such as vectors and matrices; to the algorithms that simulate the intersection of light rays with spheres, planes, cubes, cylinders, and triangles; to geometric patterns such as checkers and rings. Lighting and shading effects, such as shadows and reflections, make your scenes come to life, and constructive solid geometry (CSG) enables you to combine your graphics primitives in simple ways to produce complex shapes. Play and experiment as you discover the fun of writing a ray tracer. Accept the challenge today! What You Need: Aside from a computer, operating system, and programming environment, you'll need a way to display PPM image files. On Windows, programs like Photoshop will work, or free programs like IrfanView. On Mac, no special software is needed, as Preview can open PPM files.

Contents:

Cover

Table of Contents

Acknowledgments

Foreword

Getting Started

Who This Book Is For

How to Read This Book

Things to Watch Out For

1. Tuples, Points, and Vectors

Tuples

Operations

Putting It Together

2. Drawing on a Canvas

Representing Colors

Implementing Color Operations

Creating a Canvas

Saving a Canvas

3. Matrices

Creating a Matrix

Multiplying Matrices

The Identity Matrix

Transposing Matrices

Inverting Matrices

4. Matrix Transformations

Translation

Scaling

Rotation

Shearing

Chaining Transformations

5. Ray-Sphere Intersections

Creating Rays

Intersecting Rays with Spheres

Tracking Intersections

Identifying Hits

Transforming Rays and Spheres

6. Light and Shading

Surface Normals

Reflecting Vectors

The Phong Reflection Model

7. Making a Scene

Building a World

Defining a View Transformation

Implementing a Camera

8. Shadows

Lighting in Shadows

Testing for Shadows

Rendering Shadows

9. Planes

Refactoring Shapes

Implementing a Plane

10. Patterns

Making a Striped Pattern

Transforming Patterns

Generalizing Patterns

Making a Gradient Pattern

Making a Ring Pattern

Making a 3D Checker Pattern

11. Reflection and Refraction

Reflection

Transparency and Refraction

Fresnel Effect

12. Cubes

Intersecting a Ray with a Cube

Finding the Normal on a Cube

13. Cylinders

Intersecting a Ray with a Cylinder

Finding the Normal on a Cylinder

Truncating Cylinders

Capped Cylinders

Cones

14. Groups.

Implementing Groups

Finding the Normal on a Child Object

Using Bounding Boxes to Optimize Large Scenes

15. Triangles

Triangles

Wavefront OBJ Files

Smooth Triangles

Smooth Triangles in OBJ Files

16. Constructive Solid Geometry (CSG)

Implementing CSG

Coloring CSG Shapes

17. Next Steps

Area Lights and Soft Shadows

Spotlights

Focal Blur

Motion Blur

Anti-aliasing

Texture Maps

Normal Perturbation

Torus Primitive

Wrapping It Up

A1. Rendering the Cover Image

Index

- SYMBOLS -

- DIGITS -

- A -

- B -

- C -

- D -

- E -

- F -

- G -

- H -

- I -

- J -

- L -

- M -

- N -

- O -

- P -

- Q -

- R -

- S -

- T -

- U -

- V -

- W -

- X -

- Y -

- Z -.

Notes:

Includes index.

Description based on print version record.

ISBN:

9781680506778

1680506773

9781680506792

168050679X

OCLC:

1099564740