Andyrew's profile - activity

Fan - the user that posted the question identified the best answer below. You can see it with the green check. If it do

Have you managed to do these steps: 1) Go to the shade layer library 2) Create a new shade layer 3) Change the type drop

The BSDF file has to be pretty complete for Window to successfully import it. Can you share your BSDF file?

Radiance commands not found on Mac OS (suggestions searched and tried) 1 I installed the latest Radiance 5.2 for Mac OS

Radiance commands not found on Mac OS (suggestions searched and tried) 1 I installed the latest Radiance 5.2 for Mac OS

Radiance commands not found on Mac OS (suggestions searched and tried) 1 I installed the latest Radiance 5.2 for Mac OS

Radiance commands not found on Mac OS (suggestions searched and tried) 1 I installed the latest Radiance 5.2 for Mac OS

Radiance commands not found on Mac OS (suggestions searched and tried) 1 I installed the latest Radiance 5.2 for Mac OS

Radiance commands not found on Mac OS (suggestions searched and tried) 1 I installed the latest Radiance 5.2 for Mac OS

Radiance commands not found on Mac OS (suggestions searched and tried) 1 I installed the latest Radiance 5.2 for Mac OS

Radiance commands not found on Mac OS (suggestions searched and tried) 1 I installed the latest Radiance 5.2 for Mac OS

Radiance commands not found on Mac OS (suggestions searched and tried) 1 I installed the latest Radiance 5.2 for Mac OS

Radiance commands not found on Mac OS (suggestions searched and tried) 1 I installed the latest Radiance 5.2 for Mac OS

Radiance commands not found on Mac OS (suggestions searched and tried) 1 I installed the latest Radiance 5.2 for Mac OS

Radiance commands not found on Mac OS (suggestions searched and tried) 1 I installed the latest Radiance 5.2 for Mac OS

Radiance commands not found on Mac OS (suggestions searched and tried) 1 I installed the latest Radiance 5.2 for Mac OS

Radiance commands not found on Mac OS (suggestions searched and tried) 1 I installed the latest Radiance 5.2 for Mac OS

Are you using Catalina? Apple switched default shells from bash to zsh with the release of catalina. If you started with

I just downloaded and tested. YES, IDF+ does work on mac! Steps to download and install: Download zip file from bitb

I just downloaded and tested. YES, IDF+ does work on mac! Steps to download and install: Download zip file from bitb

I just downloaded and tested. YES, IDF+ does work on mac! Steps to download and install: Download zip file from bitb

I just downloaded and tested. YES, IDF+ does work on mac!

As I understand the best process for getting a glazing system created in LBNL optics into Radiance is to export the Radiance file from optics, then run that file through optics2rad. This works for most systems, but I only get a header when I run the script on the following system:

#
# FileName= GlzSys.usr
# Product Name= 
# NFRC ID= 30000
# Manufacturer Name= User
# Glazing Type= Glazing system
# Coated Side= Neither
# Transmittance= 0.393
# Front Reflectance= 0.143
# Back Reflectance= 0.096
# Thickness(mm)= 3.251
# Appearance= 
#

void  glass       Existing_TruVue40_glass
0
0
3     0.398     0.440     0.430

void  BRTDfunc    Existing_TruVue40_front
10
      0.163     0.139     0.105
      0.365     0.404     0.394
      0 0 0
      .
0
9 0 0 0 0 0 0 0 0 0

void  BRTDfunc    Existing_TruVue40_back
10
      0.102     0.095     0.083
      0.365     0.404     0.394
      0 0 0
      .
0
9 0 0 0 0 0 0 0 0 0

When I run optics2rad on this file I get the following header output without the expected Radiance BRTDfunc definition:

# Output generated by /Applications/Radiance/current/bin/optics2rad from Existing_TruVue40.rad
#
# FileName= GlzSys.usr
# Product Name= 
# NFRC ID= 30000
# Manufacturer Name= User
# Glazing Type= Glazing system
# Coated Side= Neither
# Transmittance= 0.393
# Front Reflectance= 0.143
# Back Reflectance= 0.096
# Thickness(mm)= 3.251
# Appearance= 
#

Can you provide more information on why you are dividing the glass into 5 pieces? What are you trying to accomplish with

Those tactics have less potency in the case of rcontrib, which doesn't use the ambient cache. Personally I'd just run wi

-as, -dj, -dp, -dt, and -dc have no effect in a daylight coefficient simulation with rcontrib, so you can ignore those.

None that I know. Sorry.

you should probably delete this question since it is a duplicate (https://unmethours.com/question/39963/how-to-validate-

I'll start by saying you should be realistic about how close a daylight simulation model and reality can be. Funded vali

I'll start by saying you should be realistic about how close a daylight simulation model and reality can be. Funded vali

Are you certain that your windows are facing the inside? Both light and glow only emit light on one side of the surface,

Are you certain that your windows are facing the inside? Both light and glow only emit light on one side of the surface,

There are two common methods to perform annual glare analysis with a matrix method. The first is to use vertical illumi

The simplest method is to generate a Radiance material description for state of the electrochromic device, and run a sim

The simplest method is to generate a Radiance material description for state of the electrochromic device, and run a sim

Setting Radiance parameters is notoriously difficult to get right. When accuracy matters to me I use parametric sensitiv

There shouldn't be an issue with using surfaces instead of solids, assuming the surfaces touch at corners (which is true

Yeah, I wan't sure since there was no mention of editing the output. In Energy Plus you don't need to put holes in walls

Hi William, Thanks for posting your files, it makes it a lot easier to find problems. I think your issue stems from yo

Can you please share your model files, points files and commands? It’s hard to determine what happened without seeing ex

I'm wondering if there is a way to model electrochromic windows with more than two tint states in OpenStudio. I'm generating schedules for tint state using a separate program, so the windows would be controlled using a csv schedule. With energy plus I'd change the construction using the EMS, but not sure if/how to accomplish this with OpenStudio and more than two tint states.

If I create a measure that uses the EMS to control electrochromic in nine tint states using a csv schedule, can I apply

I'm only using EnergyPlus.

Electrochromic Windows in OpenStudio with more than two states. I'm wondering if there is a way to model electrochromic

I've used a range of different instance types for 5 and 3 phase calculations. The five-phase method is easily parralleli

I should also add that it's possible to create a radiance matrix file with these layer absorption coefficients. Then you

Hi Kostas, You can generate layer absorption coefficients by incident angle with window. In Window preferences turn on "

Including your scene files and commands really helps clear it up. Thanks!

Hi Basdav, I'm also confused by your question. Maybe you could include a sketch to illustrate your system and describe in detail how you're planning to simulate the system.

I can offer a response to your question in 2a: The statement regarding Radiance only using the transmission front data is only true for matrix multiplaction using rfluxmtx and dctimestep. The BSDF material (which didn't exist at the time the tutorial was written) uses front and back, transmission and reflection.