Shadows in Video Games | Hidden Secrets of Light and Darkness That Bring Game Worlds to Life

Shadows enhance realism, create visual depth, and strengthen the game's atmosphere. They also impact gameplay, especially in stealth or horror games.

Static shadows are pre-rendered and do not change, while dynamic shadows update in real-time with moving lights and objects, providing a more realistic experience.

Popular techniques include Shadow Mapping, Shadow Volumes, Cascaded Shadow Maps (CSM), and Ray-Traced Shadows, each with its own advantages and limitations.

Shadows require heavy GPU processing and memory usage. Adjusting shadow resolution, using LOD, and optimization techniques are essential for maintaining performance.

Unreal Engine with Lumen and Virtual Shadow Maps, Unity with simpler and optimized tools, and CryEngine with high realism are among the top engines for shadow rendering.