Chapter 9
A Practical Viewing System
Objectives
By the end of this chapter, you should:
- understand how a practical perspective viewing system works;
- understand the differences between virtual and real cameras;
- have implemented a virtual pinhole camera.
The axis-aligned perspective viewing I discussed in Chapter 8 is too restrictive to use in a practical ray tracer. I’ll remove the restrictions in this chapter by discussing a virtual pinhole camera with all of the degrees of freedom we’ll need for the following chapters.
9.1 Description
The virtual pinhole camera implements perspective viewing with the following features:
- an arbitrary eye ...
Get Ray Tracing from the Ground Up now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
