glow effect using trail renderer

Hi guys,
m stuck wid a problem i have created a ring with the help of a trail renderer which i want to glow after a certain event by modifying the properties of the renderer,n again after a time i want da ring to be seen as before.
appreciate ne sort of help
thnk

 

If you have a specific object you would like to glow, I would create an ellipsoid particle emitter that does not simulate in worldspace. then parent the emitter to the object you would like to glow.
If you make the elipsoid size something like 0.1,0.1,0.1 and then set the particle scale to a fairly large number with a low lifespan, that should achieve the effect I think you want...

 

Perhaps this other thread will help:

Glow on trail renderer

 

thnk for the help i ll surely try dat n let u know the progress