[Radiance-general] mist

[Roland Schregle]

matan wrote:
> hallo to u all!!!
> im a graduate student dealing with agricultural eng. and i found radiance
> very usefull in determining optimal tree prunning.
> my problem is such. i found from field experiments extinction of light into
> the canopy (avocado in my case) and i was told using the "mist" material i
> could model it on radiance.

Hi Matan,

You're using RADIANCE to model *avocados*? Now that's resourceful!
I'll bet a lotta fellas around here would rather model veggies and fruit 
than some bloody big buildings... :^)

> does any one have experince or know how to turn an extinction formula
>  ( i.e. I=Io*exp(-0.5x)    x being the distance) into mist parameters?

In this case 0.5 would correspond to the coefficient of extinction 
specified with the MIST primitive or with the -me option.

See ya!

--Roland


-- 
Roland Schregle
PhD candidate, Fraunhofer Institute for Solar Energy Systems
RADIANCE Photon Map page: www.ise.fhg.de/radiance/photon-map

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