February 2019
Intermediate to advanced
292 pages
6h 55m
English
Content preview from The Ray Tracer Challenge
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Texture Maps
In addition to the solid textures (checkers, rings, and so forth) that you’ve already implemented, it’s possible to apply an external image to an object as a texture map. Here’s an example using a planar mapping, a cylindrical mapping, and a spherical mapping:
For a planar mapping, you take an image and map an (x, y) pair in object space to a corresponding pixel on the image. You’ll usually need to do some interpolation as well, since the point in question will often lie between adjacent pixels.
The cylindrical mapping is a bit trickier, since you need to convert a point on the surface of a cylinder to an image, much like the label ...
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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.