- the presentation provides an in-depth overview of shadow techniques for real-time applications
- discusses what shadow maps are, how they are rendered, stored and used
- provides an overview of common problems and solutions
- additionally provides an overview of more advanced techniques such as filtering and cascaded shadow maps
- the article presents the definition of a physically-based material that is energy conservation and reciprocity
- reciprocity is essential to be able to use bi-directional path tracing techniques
- looks at common methods such as Pre-Filtered Environment Maps, several Dielectric Material implementations presenting if they are reciprocal …