I'm new to blender and I'm trying to use the Volumetric light, I have watched some tutorials and none serves me, this for example
https://www.youtube.com/watch?v=67N7778WjLk
I use the version 2.72 b but when the boy tutorial, enter the node editor does not appear to me like I needed as indicated in the photo, someone can recommend me someone who can help me.
https://youtu.be/67N7778WjLk?t=3m36s
and me neither, not shown me the same components in the menu "add" in the node editor.
Thanks and sorry for my bad English.