If you are using Digital Fusion for making VFX and quickly need some god rays, fake volume light etc. I have made a macro to do the trick for you instead of having to spend way too much on buying a plugin. It has some nice features like flickering and noise but also a couple of bugs when trying to make an instance copy of it. So I advice not to do that until I make a new version.
It has been used in production at Gungho VFX and at Wil Film for LEGO Ninjago.
Download here God Rays Macro for Fusion v11
If you make something cool with it I would love to see it! :-) thomas@thomasbanner.dk
A framegrab from youtube shows the use of the macro on top of several layers of particles for the Lord Garmaddon FX.