Glass Block wall
Arpan Bakshi
We are working on an existing building with a glass block wall and the owner would like us to simulate it!
Anyone have experience w/ setting up a glass block wall simulation in DIVA/Radiance/DaySim?
Arpan Bakshi
J. Alstan Jakubiec
The website http://arch.xtr.jp/radiance/mat_database.htm has a glass block
material. I copy it below with a slight modification that should make it
work in DIVA,
void texfunc ripply
6 xwrink ywrink zwrink wrinkle.cal -s 2.2
0
4 1 1 1 0.25
ripply dielectric Glass_Block
0
0
5 0.99 0.99 0.99 1.5 0
Most likely you will have to calibrate such a material with some basic
measurements from your existing building to establish feasibility. Getting
an illuminance that matches your building's on a bright day with a
Radiance simulation should be a reasonably good test for that. You should
also check that the ripply-ness of the surface will be correct (change the
parameters in the line "4 1 1 1 0.25").
In this case, I would actually model the blocks as cubes (or at least a
pair of surfaces).
Let us know how it works out!
Best,
Alstan
On Thu, 08 Mar 2012 17:18:33 -0500, Arpan Bakshi <arpan...@gmail.com>
wrote:
Max D
Another thing, though- I assume that the blocks are grouted in place? In that case, the visual transmittance of the whole wall would change if the light angle is steeper, since then the opaque grout inbetween the blocks would become more apparent. You'd see that as a shadow pattern. Hence, I would model that, too- it can be done with simple, infinitely thin surfaces, but do check in a little test how much accuracy you would lose as opposed to modeling a "volumetric" grout seam.
Good luck & yes, let us know how it goes!
Max
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Brendon
Thank you for the glass block material definition. I noticed that
Axel Jacobs has a very similar definition for water in his Radiance
Tutorial. I modified my material.rad file but then DIVA only shows
"ripply" as the material not "Glass_Block." This material definition
works in native UNIX, so do you know why it is not working in DIVA?
Has anybody gotten this to work in DIVA?
Thanks -
Brendon
> The websitehttp://arch.xtr.jp/radiance/mat_database.htmhas a glass block
> work in DIVA,
>
> voidtexfuncripply
> 6 xwrink ywrink zwrink wrinkle.cal -s 2.2
> 0
> 4 1 1 1 0.25
>
> ripply dielectric Glass_Block
> 0
> 0
> 5 0.99 0.99 0.99 1.5 0
>
> Most likely you will have to calibrate such a material with some basic
> measurements from your existing building to establish feasibility. Getting
> an illuminance that matches your building's on a bright day with a
> Radiance simulation should be a reasonably good test for that. You should
> also check that the ripply-ness of the surface will be correct (change the
> parameters in the line "4 1 1 1 0.25").
>
> In this case, I would actually model the blocks as cubes (or at least a
> pair of surfaces).
>
> Let us know how it works out!
>
> Best,
> Alstan
>
J. Alstan Jakubiec
Is it possible that you have version 1.2 of DIVA installed? Prior to
version 1.9, only materials prefixed with "void" were accepted, but in the
most recent versions this should not be the case.
Best,
Alstan
On Wed, 28 Mar 2012 22:31:02 -0400, Brendon <brendo...@gmail.com>
wrote:
Brendon
Thanks for the quick response. I do, in fact, have V1.2 (because I
have Rhino SR8). That explains why I've just been banging my head
against the wall without getting results. I guess I'll have to
upgrade or go back to Unix.
Best -
Brendon
On Mar 28, 9:20 pm, "J. Alstan Jakubiec" <als...@jakubiec.net> wrote:
> Hi Brendon,
>
> Is it possible that you have version 1.2 of DIVA installed? Prior to
> version 1.9, only materials prefixed with "void" were accepted, but in the
> most recent versions this should not be the case.
>
> Best,
> Alstan
>
>
>
>
>
>
>
>
> > Hi Alston -
> > Thank you for the glass block material definition. I noticed that
> > Axel Jacobs has a very similar definition for water in his Radiance
> > Tutorial. I modified my material.rad file but then DIVA only shows
> > "ripply" as the material not "Glass_Block." This material definition
> > works in native UNIX, so do you know why it is not working in DIVA?
>
> > Has anybody gotten this to work in DIVA?
>
> > Thanks -
> > Brendon
>
> > On Mar 8, 9:45 pm, "J. Alstan Jakubiec" <als...@jakubiec.net> wrote:
> >> Hi Arpan,
>