Dear colleagues,

One of my students wants to model a swimming pool in Radiance. She is looking for a Radiance material model for the water surface (something similar to what Jack de Valpine has done for the rendering on the Radiance online web site). Has anybody modeled water in the past and is willing to share the model with us?

Christoph
Christoph Reinhart, Ph.D.
Associate Research Officer National Research Council Canada Institute for Research in Construction
Adjunct Professor McGill University School of Architecture
tel: (613) 993-9703 fax: (613) 954 3733
e-mail: <blocked::mailto:christoph.reinhart@nrc-cnrc.gc.ca> christoph.reinhart@nrc-cnrc.gc.ca

The Lightswitch Wizard (initial design) <blocked::http://www.buildwiz.com/> www.buildwiz.com
DAYSIM (expert software) <blocked::http://www.daysim.com/> www.daysim.com

Hi Christoph,

I found this in the radiance-general archives, perhaps this would be of
some help:

···

On Tue, April 5, 2005 3:47 pm, Reinhart, Christoph said:

Dear colleagues,

--
Rob Guglielmetti
www.rumblestrip.org

The info in this thread is what I used to model a wavy water surface in
the Basic Tutorial which is linked in here:
http://luminance.londonmet.ac.uk/learnix/index.php?module=phatfile&FILE_MAN_OP=Main&MMN_position=4:4
See page 13.
The primitives are listed in the appendix.

Axel

Hi Christoph,

I used 'wave.cal' (material below) to model the pools for the "Foggo Atrium".

-John

···

==========================================

void texfunc wavy
6 wave_x wave_y wave_z wave.cal -s .05
0
1 .25

wavy glass water
0
3 0.51 0.62 0.68

=========wave.cal==========================

{
Ripples for water, whatever

04Mar90

A1 = degreee of waviness
}
wave_x = wave_mag * noise3a(Px, Py, Pz);
wave_y = wave_mag * noise3b(Px, Py, Pz);
wave_z = wave_mag * noise3c(Px, Py, Pz);

wave_mag = min(A1, .5*Rdot);

==========================================

-----------------------------------------------
Dr. John Mardaljevic
Senior Research Fellow
Institute of Energy and Sustainable Development
De Montfort University
The Gateway
Leicester
LE1 9BH, UK
+44 (0) 116 257 7972
+44 (0) 116 257 7981 (fax)

Hi Chistoph,

Just to pitch in, I think that what we used for the image at Radiance online was the wave.cal in a texfunc applied to a glass surface (as John M. already suggested). The point was not so much about physical accuracy but to get something that "looked" like water.

-Jack

Reinhart, Christoph wrote:

···

Dear colleagues,
One of my students wants to model a swimming pool in Radiance. She is looking for a Radiance material model for the water surface (something similar to what Jack de Valpine has done for the rendering on the Radiance online web site). Has anybody modeled water in the past and is willing to share the model with us?
Christoph
Christoph Reinhart, Ph.D. Associate Research Officer National Research Council Canada Institute for Research in Construction
Adjunct Professor McGill University School of Architecture
tel: (613) 993-9703 fax: (613) 954 3733 e-mail: christoph.reinhart@nrc-cnrc.gc.ca <blocked::mailto:christoph.reinhart@nrc-cnrc.gc.ca>
The Lightswitch Wizard (initial design) www.buildwiz.com <blocked::http://www.buildwiz.com/> DAYSIM (expert software) www.daysim.com <blocked::http://www.daysim.com/> Radiance Workshop 2005 http://irc.nrc-cnrc.gc.ca/ie/light/RadianceWorkshop2005 <blocked::http://irc.nrc-cnrc.gc.ca/ie/light/RadianceWorkshop2005>

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