RL - it could be called a "Bloom Texture", where more than just say selecting a grain/filter amount, you could have the UI allow the option to add/select an image for a Bloom filter. 
You could give the user several presets, but then the user could add in any image of their own too....  
Could potentially be an interesting added art tool element 

Tony - Very nice - The artifacting in the glow is clearly eliminated. Nice job, thanks, keep those cards & letters coming!  ~V~ 

       Val RogueAnanda

PS -
100 iClone Coins to the party that gets this done.

In online threads about Photoshop, the phenomenon is known as "banding".
one such way to disguise is to add a noise-filter, which can wholesale 'buff' out the gradient transition issue.

If there was a grain/noise filter that could be optionally applied to the bloom, say in the ADVANCED settings, it could perhaps give us better gradient blending for the HDR Bloom when used against a monochrome background, such as black.  If there were an option to control the degree of noise (either darkness, resolution, etc.) This would be very interesting as it could artistically be used for simulating dust, say in a lighted bloom area.  

Here are 2 examples, a before and after:

.iClone 7.2 Render - Bloom Rings visible


Photoshop noise filter added - Bloom Rings are 'buffed' out.  If I added more I could likewise buff out further.



Incoming message alert:
-ADD A NOISE FILTER OPTION TO THE NEW HDR BLOOM ADVANCED SETTINGS....
-NOW

It is easy to produce an issue I am seeing where non-smooth light to dark blending occurs:

1) Open new scene
2) Create primitive cube
DONE

Look at blending between light and dark.  There are visible rings.  This was not there in previous iteration of the Bloom effect.


More pronounced with Tone Map' checked (On)


 
Here is a portion of the image zoomed in for clearer view of the "bloom rings".


Here is an even further zoom.  For some reason there are dark lines separating the gradient light. 
If they weren't there, the effect would be less visible!

 



These bloom rings are visible during this entire video :



NEW MISSION-
Get rid of those dark lines.

Snoke said it best:
"Darkness rises...and Light to meet it..."

May the force be with us all

The more you get the more you want. Now I wish to have those Global Glow settings to be available on per object base (not necessary on a timeline).

wow! Downloading now!!!


ALEMAR GAMES MARKETPLACE STORE

This is also great for all kinds of displays or lights for example where things to be illuminated are part of a larger texture, so self illumination can not be used.

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Thanks for the breakdown Look forward to testing the updates out they look great

yeah!
i can now use all them emissive textures i leave out.