[Radiance-general] optics2rad

Mike Martinez mmartinez at integralgroup.com
Fri Aug 1 14:19:34 PDT 2014


Hi folks,

I'm having trouble with an optics2rad conversion. When I run the conversion
script, it simply spits back the glass description instead of nice cleaned
up BRTDfunc. It works fine with other glass assemblies, so I think it's
specific to this description (copied below).

If the front and back reflectance values are close, as in this example,
does optics2rad simply say "don't worry about it, the RGB glass default is
close enough"?

Thanks for any insights - here's the export from Optics 6:

#
# FileName= GlzSys.usr
# Product Name=
# NFRC ID= 30000
# Manufacturer Name= User
# Glazing Type= Glazing system
# Coated Side= Neither
# Transmittance= 0.592
# Front Reflectance= 0.160
# Back Reflectance= 0.162
# Thickness(mm)= 23.715
# Appearance=
#


void  glass       CLEX_glass
0
0
3     0.571     0.677     0.628

void  BRTDfunc    CLEX_front
10
      0.134     0.168     0.174
      0.524     0.621     0.576
      0 0 0
      .
0
9 0 0 0 0 0 0 0 0 0

void  BRTDfunc    CLEX_back
10
      0.136     0.168     0.206
      0.524     0.621     0.576
      0 0 0
      .
0
9 0 0 0 0 0 0 0 0 0
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