April 2016
Intermediate to advanced
784 pages
18h 25m
English
Content preview from Ray Tracing from the Ground Up
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Chapter 4
Antialiasing
Image courtesy of Peter Brownlow
Objectives
By the end of this chapter you should:
- understand what aliasing is and what causes it in ray tracing;
- understand why you can’t completely eliminate aliasing in all ray-traced images;
- have implemented antialiasing in the bare-bones ray tracer with uniform, random, and jittered sampling patterns.
Computers are discrete devices that display a finite number of pixels, work with a finite number of colors, and in the case of ray tracing, sample scenes at a finite number of discrete points. As such, most ray-traced images are subject to aliasing, where an alias means a substitute ...
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