[Bf-funboard] New Physics feature "Phosphorescence"

[Robert Wenzlaff (AB8TD)]

On Monday 10 November 2008 14:50, Karl Kühberger wrote:
> If a material which is enabled as phosphorescent, receives light, it
> not only reflects the light but preserves it too. Then it reflects a  
> continually
> diminishing amount of the light over a certain number of frames.

In addition to that it should be able to color shift.  Then you get  
fluorescence too.   

Ie; if it's hit with 6 units of white light (2 R, 2 B, 2 G), it could convert 
it to up to 6 units of red light.  That's why "day-glo" fluorescent colors 
appear to glow.  They give off more red than the ambient light contains, so 
the eye assumes they are a net emitter of light, when really they are giving 
off less total light than a white surface would reflect, just more red than 
it would.

For true "black-light" fluorescents, you would need to define an invisible 
channel in the light, or add a No Fluor. button to the No Diffuse, No 
Specular, stuff.  
-- 
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Robert Wenzlaff  rwenzlaff at soylent-green.com