February 2019
Intermediate to advanced
292 pages
6h 55m
English
Content preview from The Ray Tracer Challenge
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Lighting in Shadows
Given some point, you can know that it lies in shadow if there is another object sitting between it and the light source, as shown in the following figure.
The light source is unable to contribute anything to that point. Take a moment and recall how your lighting function works, from The Phong Reflection Model. The diffuse component relies on the vector to the light source, and the specular component depends on the reflection vector. Since both components have a dependency on the light source, the lighting function should ignore them when the point is in shadow and use only the ambient component.
Add the following test to ...
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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.