[Radiance-general] Illuminance calculation on a virtual surface?

[Greg Ward]

No good.  Trans gets ignored by the rpict -i option.  Just use pfilt to 
scale the illuminance map if it's not big enough.  (John M's suggestion 
-- he's sitting next to me in Leicester.)

-Greg

> From: Rob Guglielmetti <rpg at rumblestrip.org>
> Date: June 28, 2004 3:12:13 PM GMT+01:00
>
> Raphael Compagnon wrote:
>> Hello Jim,
>> You can simply slightly change your script by specifying rtrace 
>> option -fac that will directly generate a Radiance picture on its 
>> output. Of course, you will surely have to increase the density of 
>> the calculation points piped to rtrace in order to have a picture 
>> with reasonable size.
>
> How about making the plane out of a trans material with zero 
> reflectance and 100% transmission?  Martin (Moeck), didn't you mention 
> that technique once?  Or am I confused again? =8-)
>
> ----
>
>      Rob Guglielmetti
>
> e. rpg at rumblestrip.org
> w. www.rumblestrip.org