Glow

For more Information about this phenomenon in real life and how to do it in 3ds max I couldn't find any any better than Neil Blevins's Article about this Issue its good read
http://www.neilblevins.com/cg_education/specular_bloom/specular_bloom.htm

about my way which using Combustion 4 to achieve the Specular Bloom

1- when you done every thing and you are ready to render just hit F10 and chose to make your render output in RPF Format

2- for the RPF format save Options I keep every thing checked every layer give me more control over my renders so why not keeping every thing checked that's maybe you will need this layers in future so you don't have to render all you renders again

3-go to Combustion chose Open menu -> Open -> Open your File then you have dialog asking you about lots of stuff we will chose for now 2D Composite it will serve our demonstration well for now

4- from the workspace chose your footage the Right click -> add new operator -> 3d Post -> 3D Glow Look to the next Picture

5-Tweak your 3d Glow operator Until you get you desired result Just play with the controls its very easy as you can see

6- Glow source Option is very Important its the way the program knows which object/layer it will work on so keep this in mind if you don't get any result doing all that then maybe because Glow source in not closed in the right way the help in Combustion got some useful information about this subject please check it for more information