March 2013
Intermediate to advanced
984 pages
26h 18m
English
book
OpenGL Programming Guide: The Official Guide to Learning OpenGL, Version 4.3, Eighth Edition
by Dave Shreiner, Graham Sellers, John M. Kessenich, Bill M. Licea-Kane
Content preview from OpenGL Programming Guide: The Official Guide to Learning OpenGL, Version 4.3, Eighth Edition
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Shadow Mapping
Recent advances in computer graphics have produced a plethora of techniques for rendering realistic lighting and shadows. OpenGL can be used to implement almost any of them. In this section, we will cover one technique known as shadow mapping, which uses a depth texture to determine whether a point is lit or not.
Shadow mapping is a multipass technique that uses depth textures to provide a solution to rendering shadows. A key pass is to view the scene from the shadow-casting light source rather than from the final viewpoint. By moving the viewpoint to the position of the light source, you will notice that everything seen from that location is lit—there are no shadows from the perspective of the light. By rendering the scene’s ...
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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.