shadow maps vs shadow volumes

The question is :

What’s faster? Shadow maps or shadow volumes. It’s not fast neither read light z-buffer nor build geometry for each edge of casting objects, so, what choose?


For the time being, shadow volumes are probably the best choice. They tend to be faster, more universally supported, and better quality. Shadow maps really are a more elegant technique and they scale to high geometry scenes better, but right now (for good quality) they typically require REALLY large textures.


Does anyone have some good bookmarks/links/info about shadow volumes? Thanks!

Punchey, here are some good URL for shadow volumes casting :