Eisemann Elmar, Schwarz Michael, Assarsson Ulf, Wimmer Michael. Real-Time Shadows

CRC Press, Taylor & Francis Group, 2012.
ISBN: 978‑1‑56881‑438‑4 (alk. paper).Basic Shadow Techniques.
Shadow-Map Aliasing.
Shadow-Map Sampling.
Filtered Hard Shadows.
Image-Based Soft-Shadow Methods.
Geometry-Based Soft-Shadow Methods.
Image-Based Transparency.
Volumetric Shadows.
Advanced Shadow Topics.A Down the Graphics Pipeline.
B Brief Guide to Graphics APIs.
C A Word on Shading.
D Fast GPU Filtering Techniques.
E More For Less: Deferred Shading and Upsampling.
F Symbols.