February 2019
Intermediate to advanced
292 pages
6h 55m
English
Content preview from The Ray Tracer Challenge
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Making a Gradient Pattern
A gradient pattern is like stripes, but instead of discrete steps from one color to the next, the function returns a blend of the two colors, linearly interpolating from one to the other as the x coordinate changes. If the first color is red, and the second is blue, the resulting gradient will look like this:
Add the following test to show how a basic linear gradient pattern ought to work.
| | Scenario: A gradient linearly interpolates between colors |
| | Given pattern ← gradient_pattern(white, black) |
| | Then pattern_at(pattern, point(0, 0, 0)) = white |
| | And pattern_at(pattern, point(0.25, 0, ... |
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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.
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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.