April 2016
Intermediate to advanced
784 pages
18h 25m
English
Content preview from Ray Tracing from the Ground Up
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Chapter 3
Bare-Bones Ray Tracing
Objectives
By the end of this chapter, you should:
- understand how ray casting works;
- know how rays are defined;
- know how to intersect a ray with a plane and a sphere;
- understand the structure of a simple ray tracer;
- have implemented a ray tracer that can render orthographic views of an arbitrary number of planes and spheres.
The purpose of this chapter is to explain how a number of ray-tracing processes work in a simplified context. I’ll discuss here how ray tracing generates images, how rays are defined, how ray-object intersections work, the classes required for a simple ray tracer, and how to ray trace an ...
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