[Radiance-general] Antimatter

[Giovanni Betti]

Thanks All,

 

I think it might be because of the version a(I definitely use an older
version of Radiance)

I have pretty much the same results as Rob.

I'll try on a new version on Monday, I guess...

 

Best,

 

Giovanni

 

________________________________

From: radiance-general-bounces at radiance-online.org
[mailto:radiance-general-bounces at radiance-online.org] On Behalf Of Jack
de Valpine
Sent: 30 October 2009 17:38
To: Radiance general discussion
Subject: Re: [Radiance-general] Antimatter

 

Hi Rob,

Looks like I missed the point of the question. I see what you mean about
the shadow.....

-Jack

Jack de Valpine wrote: 

Hi Rob,

If you do the following it should work with a material at the cut:

void antimatter cutter
2 sketchup_default_material sketchup_default_material
0
0

-Jack




-- 
# Jack de Valpine
# president
#
# visarc incorporated
# http://www.visarc.com
#
# channeling technology for superior design and construction


Fitzsimmons, Rob wrote: 

As a test, I did this in sketchup, and got curious results...
The light goes through, but only on the edge. All the grey boxes are
antimatter, cutting through the wall.

http://rastermon.com/images/antimatter.jpg
http://rastermon.com/images/antisketchup.gif

my materials:
## material conversion from Sketchup rgb color
void plastic sketchup_default_material
0
0
5 0.1400 0.3400 0.3400 0.000 0.000

void antimatter cutter
2 void sketchup_default_material
0
0


Rob Fitz


-----Original Message-----
From: radiance-general-bounces at radiance-online.org on behalf of Giovanni
Betti
Sent: Fri 10/30/2009 9:40 AM
To: Radiance general discussion
Subject: [Radiance-general] Antimatter


Dear All,

It has been a real pleasure to have the chance to be at the radiance
workshop in Cambridge and to meet all the great guys there and to listen
to so many inspiring presentations (btw, really looking forward to see
them on line!)

Now back to the office and again fighting with day to day issues. I am
trying to model a series of openings in a screen using antimatter and I
am getting really confused.
The screen is modelled as a single surface intersected by a number of
cubes. As in the antimatter description I read:
"The viewpoint must be outside all volumes concerned for a correct
rendering." I assume that means that the camera should not be inside one
of the cubes and that (I guess) the cube normals should point outward.
Done that, I am able to see through the cubes but I do not see the
pattern of light coming through the antimatter holes, I just have a big
solid shadow...

Is that how it is supposed to behave? Does anybody have any clue about
what I am doing wrong?

Thanks in advance,
Best,

Giovanni

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________________________________



 
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-- 
# Jack de Valpine
# president
#
# visarc incorporated
# http://www.visarc.com
#
# channeling technology for superior design and construction
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