shadow buffer - ?

Support Basics & Interface
1

Can’t find any info on a button called shadow buffer. Can someone explain what this does. Thanks in advance.

2

http://mediawiki.blender.org/index.php/Manual/PartV/Buffer_Shadows

3

Hello.

I suggest this article from the Wiki Manual.

I hope this helps.

Edit: It seems I was posting at the same time as someone else.