[Radiance-general] optics2glazedb program

Tue Dec 14 10:30:13 PST 2010

Hi Jack,

I think I managed to solve the problem concerning the processing of some monolithic glass from Optics (i.e. Starphire Ultra Clear from PPG Industries - NFRC ID= 5004).

When exporting a glazing system including only one layer of clear glass instead of exporting a single layer in Optics, the resulting output can then be processed correctly by Optics2glazedb.
However, as shown below, both outputs (layer vs glazing system) are identical, except for the headers and the material identifier:

Layer export:
#
# FileName= STRPH_6.PPG
# Product Name= Starphire®
# NFRC ID= 5004
# Manufacturer Name= PPG Industries
# Glazing Type= Monolithic
# Coated Side= Neither
# Transmittance= 0.911
# Front Reflectance= 0.082
# Back Reflectance= 0.083
# Thickness(mm)= 5.664
# Appearance=
#

void  glass       STRPH_6_glass
0
0
3     0.989     0.993     0.989

void  BRTDfunc    STRPH_6_front
10
      0.081     0.082     0.084
      0.908     0.912     0.908
      0 0 0
      .
0
9 0 0 0 0 0 0 0 0 0

void  BRTDfunc    STRPH_6_back
10
      0.082     0.083     0.085
      0.908     0.912     0.908
      0 0 0
      .
0
9 0 0 0 0 0 0 0 0 0

Glazing system export (one clear glass layer):
#
# FileName= GlzSys.usr
# Product Name=
# NFRC ID= 30005
# Manufacturer Name= User
# Glazing Type= Glazing system
# Coated Side= Neither
# Transmittance= 0.911
# Front Reflectance= 0.082
# Back Reflectance= 0.083
# Thickness(mm)= 5.664
# Appearance=
#

void  glass       GlzSys_glass
0
0
3     0.989     0.993     0.989

void  BRTDfunc    GlzSys_front
10
      0.081     0.082     0.084
      0.908     0.912     0.908
      0 0 0
      .
0
9 0 0 0 0 0 0 0 0 0

void  BRTDfunc    GlzSys_back
10
      0.082     0.083     0.085
      0.908     0.912     0.908
      0 0 0
      .
0
9 0 0 0 0 0 0 0 0 0

In short, it seems to work, but I don't know why. However, it is much better than: it doesn't work and I don't know why... ;)

Regards,

François

From: François Cantin [mailto:FCantin at hudonjulien.com]<mailto:[mailto:FCantin at hudonjulien.com]>
Sent: Wednesday, December 08, 2010 6:51 PM
To: Radiance general discussion
Subject: Re: [Radiance-general] optics2glazedb program

Hi Jack,

When I pass a set of files (Radiance output from Optics 5) to Optics2glazedb, the script doesn't seem to be able to ''compute'' all the uncoated glass (Monolithic type in Optics 5).

Following the example taken from your presentation at the 2009 Radiance Workshop, I try to process a Starphire Ultra Clear from PPG Industries (NFRC ID= 5004) as the glass that will serve as the clear glass for my set. However, despite using a clean output from Optics, I can't get a complete output from Optics2glazedb (all I get is an header with no value):

Surface Tr Tg Tb Rcr Rcg Rcb Rgr Rgg Rgb Part

On the other hand, when I pass a LowE on clear from Viracon (The other glass taken from your example - NFRC ID= 6046) the script return a good output.

Do you have any idea of what is going on ? (In fact, I should probably ask: what am I doing wrong ?)
I'm working on Cygwin, this may be the cause of the problem...

Also, you mentioned that the first glass material description must be for an uncoated ''clear'' glass. Can you give more explanation about that ? Is this a limitation of the Glaze script ?

Once again, thanks for your help, I very appreciate it !

François

From: radiance-general-bounces at radiance-online.org<mailto:radiance-general-bounces at radiance-online.org> [mailto:radiance-general-bounces at radiance-online.org]<mailto:[mailto:radiance-general-bounces at radiance-online.org]> On Behalf Of Jack de Valpine
Sent: Tuesday, December 07, 2010 12:29 PM
To: Radiance general discussion
Subject: Re: [Radiance-general] optics2glazedb program

Hi Francois,

Great, let me know if you have any questions.

-Jack

--

# Jack de Valpine

# president

#

# visarc incorporated

# http://www.visarc.com

#

# channeling technology for superior design and construction

On 12/7/2010 11:56 AM, François Cantin wrote:
Hi Jack,

Thanks for your fast reply. Indeed, it works...

Regards,

François

From: radiance-general-bounces at radiance-online.org<mailto:radiance-general-bounces at radiance-online.org> [mailto:radiance-general-bounces at radiance-online.org] On Behalf Of Jack de Valpine
Sent: Tuesday, December 07, 2010 11:40 AM
To: Radiance general discussion
Subject: Re: [Radiance-general] optics2glazedb program

Hi Francois,

The script is still available at the site. Please give it a try again and let me know if it works. As for "official" this is it, as I am the one who put the script together.

Regards,

-Jack de Valpine

--

# Jack de Valpine

# president

#

# visarc incorporated

# http://www.visarc.com

#

# channeling technology for superior design and construction

On 12/7/2010 10:51 AM, François Cantin wrote:
Hi everyone,

I'm looking for the optics2glazedb program.

Since the link provided by Jack de Valpine more than one year ago doesn't seem to be valid anymore, is there another ''official'' link to download this gem ? ;)

Thanks in advance,
______________________________________________________________
François Cantin, M Arch, MSc Arch

Hudon Julien associes,
1175 Lavigerie, suite 400, Ste-Foy(Québec) G1V 4P1
Tél: (418) 653-8484 #224, Fax:(418) 653-6189
E-mail: fcantin at hudonjulien.com<mailto:fcantin at hudonjulien.com>
Site web: www.hudonjulien.com<http://www.hudonjulien.com/>

      Hi Anne,

      This is not in the standard distribution it is something that I put
      together. I have placed a copy up on our ftp site. You can download it
      as follows:
            go to: ftp://ftp.visarc.com
            username: u36117396-rw2009
            passwd: rw20094vis

      The usage is as follows:
      optics2glazedb glass_1.mat .... glass_n.mat

      NOTE that the first glass material description should be for a "clear"
      glass.

      Please let me know if you have any questions.

      Regards,

      -Jack de Valpine

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

            Anne Iversen wrote:

            Inspired by the presentation of Jack I want to generate a
            new database for the glaze script by running optics2glazedb.
            As far as I can see, the program is not included in the latest version
            (HEAD)? Where can I find optics2glazedb?

            Anne

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