[Bf-funboard] Feature proposal: Cycles Shader "Phosphorescent"

[Karl Kühberger]

Hi!

For a little animation I was looking for a kind of phosphorescent effect.
I mean this effect of phosphor color (normally green), which keeps the
light energy when it is hit by a light source and emits it until continuously
over a certain time.

I now how to obtain this effect in Cycles using animated nodes, but for
the desired effect it should work automatically because there are too
many light-sources and moving objects throwing shadows.

I think of a „simple“ shader similar to the already existing „Emission“, 
but with no fixed strength. The strength sould be 0.000 at the beginning
(or alternatively have a minimum to be set) and which loads up light energy
until a maximum (max. slider to be set by the user). The collected energy
should be emitted continuously until the „battery“ is empty. Another slider
for the speed of discharge would be the icing on the cake.

Is this kind of shader interesting for other people too?
For me as a non-coder it sounds quite easy to be made (hopefully it is),
but I know that things often are much more complicated as it seems to
a noob.

Best regards,
Karl