July 2012
Intermediate to advanced
712 pages
24h 57m
English
Content preview from OpenGL Insights
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Shadow Proxies
Jochem van der Spek
16.1 Introduction
For real-time rendering of the virtual painting machines that I regularly show in
exhibitions (see Figure 16.1), I needed a shadowing technique capable of rendering
soft shadows without any rendering artifacts such as banding or edge jitter no matter
how close the the camera came to the penumbra. I call such shadows infinitely s oft.In
addition, I wanted a method to render color bleeding so that the color and shadow of
one object could reflect onto others (see Figure 16.2). Searching through the existing
Figure 16.1. Stills from a virtual painting machine.
219
16
220 II Rendering Techniques
Figure 16.2. ...
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