The problem it doesn't work on non illuminated 3D faces as you can see.
Because it's just the HDR effect taking on illuminated parts, not a real bloom
The "problem" is that the sunlight is adding even more brightness to the "glowing" parts which makes them bright enough to affect the bloom shader.
If you want to I can create an object shader with all the stuff you need (also lighting / normalmapping).
Let me know if you're interested.
