Keywords: Graphics, Rendering, Shadow Mapping

Overview

Shadow mapping or shadowing projection is a process by which shadows are added to 3D computer graphics. This concept was introduced by Lance Williams in 1978, in a paper entitled “Casting curved shadows on curved surfaces.” Since then, it has been used both in pre-rendered and realtime scenes in many console and PC games.

Shadows are created by testing whether a pixel is visible from the light source, by comparing the pixel to a z-buffer or depth image of the light source’s view, stored in the form of a texture.

Quoted from: Shadow mapping
https://en.wikipedia.org/wiki/Shadow_mapping

Documents

Shadow mapping
https://en.wikipedia.org/wiki/Shadow_mapping

Shadow volume
https://en.wikipedia.org/wiki/Shadow_volume

Tutorials

Tutorial 16 : Shadow mapping
http://www.opengl-tutorial.org/intermediate-tutorials/tutorial-16-shadow-mapping/

Research Papers

Simpler Soft Shadow Mapping
http://sauerbraten.org/lee/sssm.pdf

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