Shadow casting

Advantages

• Moderately easy to implement
• Efficient
• Existing library

Disadvantages

• Some counter-intuitive results

How do I implement it?

• Computing LOS for Large Areas
• FOV using recursive shadowcasting
• FOV using recursive shadowcasting - improved
• Spiral Path FOV

What games use it?

Most modern games use shadow casting.

What libraries implement it?

• libfov is a C++ library which implements recursive shadow casting.