Modelling Water with Radiance

Hello there,

I am doing some Glare analysis for which it would be fundamental to model water properly.

I am having difficulties to input the materials definitions I have found in this Link in the honeybee library, I think I am formatting the string not properly,

Any suggestion?

Thanks!

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Permalink Reply by Mostapha Sadeghipour Roudsari on November 18, 2015 at 11:52am

Hi Amedeo,

You can do it as simple as adding the materials to the library and apply them to surfaces. Just make sure to create the wave.cal file and copy it inside c:\radiance\lib. Here is the results:

Check this Hydra for one of the approaches mentioned in the link: (http://hydrashare.github.io/hydra/viewer?owner=mostaphaRoudsari&...)

Permalink Reply by amedeo scofone on November 19, 2015 at 4:39am

Thanks A lot Mostapha!

Permalink Reply by Fazel Ganji on March 29, 2016 at 1:36am

Hi Mostapha,

Thank you for this post, We all proud of you.

For one educational project, I am trying to evaluate the effect of thick water wall on daylight distribution inside a room. (as you know it is not possible with glass material)

this water wall is oriented to the south with thickness about 25 cm.

I have defined a dielectric material in radiance for Water as this:

void dielectric Water

5 0.8695 0.8695 0.8695 1.33 0

#red_transmissivity green_transmissivity blue_transmissivity index_of_refraction 0

Therefore, I defined 2 surfaces for front and back and since there is just one layer of dielectric, I don't need using any interface material. But the direction of these surface is very tricky. both directions have to be toward outside (?)

should I rotate them inside in reverse ray tracing??? The resultant values are significantly different.

any comments would be really helpful for me.
thanks in advance.

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