February 2019
Intermediate to advanced
292 pages
6h 55m
English
Content preview from The Ray Tracer Challenge
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Torus Primitive
A torus is a ring or donut shape, like this:
They make really neat, versatile primitives, but they’re a bit more advanced than the primitives you’ve implemented so far. Spheres, cylinders, and cones are called quadric surfaces, which means they can be described by second-degree equations (those where no variable is raised to a power higher than 2). A torus, though, is a quartic surface, with variables raised to the fourth power. This means you need a quartic equation solver to find the intersection between a torus and a ray.
But that just means you get to dig deeper than you have before, right? If you don’t already have access ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.