Infor Radiance

Hi,

I'm Valeria,I'm an italian student. I'm using Radiance (with Ecotect software) for the frist time for my thesis and I've very short time to resolve my problem because I did, during last months, experimental texts but now I need to compare theese tests with the software in 3 weeks maximum . I'm studying different types of light shelves but when I do the simulations on Radiance I can't see the reflection of the rays (of the sun) on surface and on walls too. I'm using "mirror" like material of the light shelf. I tried all things that I could find on internet and on forum too, but nothing! I'm really in trouble. Please help me ! Thanks

Hi Valeria,

How are you assigning material in radiance through Ecotect? I hope you have
checked the rad file to ensure that the mirror properties are assigned to
the light shelf. It would be good if you can share the model or the rad
file so that I can try to debug the issue.

Regards

···

On Sat, Mar 10, 2018 at 6:33 PM, Valeria Portaluri < [email protected]> wrote:

Hi,

I'm Valeria,I'm an italian student. I'm using Radiance (with Ecotect
software) for the frist time for my thesis and I've very short time to
resolve my problem because I did, during last months, experimental texts
but now I need to compare theese tests with the software in 3 weeks
maximum . I'm studying different types of light shelves but when I do the
simulations on Radiance I can't see the reflection of the rays (of the sun)
on surface and on walls too. I'm using "mirror" like material of the light
shelf. I tried all things that I could find on internet and on forum too,
but nothing! I'm really in trouble. Please help me ! Thanks

_______________________________________________
Radiance-general mailing list
[email protected]
https://www.radiance-online.org/mailman/listinfo/radiance-general

--
Gurneet Singh
Energy Analyst-Architect
M: 9899-240140

I'm attaching both Radiance files. The image RCP_c1.jpg is my case study. This room reproduces the 1: 5 scale model of the real room that I'm studying. The jpg Esempio is what I need to see on my render.

1 1.rad (34 KB)

1_sky 1.rad (331 Bytes)

1 1.rif (485 Bytes)

···

Inviato da Outlook<http://aka.ms/weboutlook>

________________________________
Da: Gurneet <[email protected]>
Inviato: sabato 10 marzo 2018 14:53
A: Radiance general discussion
Oggetto: Re: [Radiance-general] Infor Radiance

Hi Valeria,

How are you assigning material in radiance through Ecotect? I hope you have checked the rad file to ensure that the mirror properties are assigned to the light shelf. It would be good if you can share the model or the rad file so that I can try to debug the issue.

Regards

On Sat, Mar 10, 2018 at 6:33 PM, Valeria Portaluri <[email protected]<mailto:[email protected]>> wrote:

Hi,

I'm Valeria,I'm an italian student. I'm using Radiance (with Ecotect software) for the frist time for my thesis and I've very short time to resolve my problem because I did, during last months, experimental texts but now I need to compare theese tests with the software in 3 weeks maximum . I'm studying different types of light shelves but when I do the simulations on Radiance I can't see the reflection of the rays (of the sun) on surface and on walls too. I'm using "mirror" like material of the light shelf. I tried all things that I could find on internet and on forum too, but nothing! I'm really in trouble. Please help me ! Thanks

_______________________________________________
Radiance-general mailing list
[email protected]<mailto:[email protected]>
https://www.radiance-online.org/mailman/listinfo/radiance-general

--
Gurneet Singh
Energy Analyst-Architect
M: 9899-240140

Hi Valeria -

From your rad file, the material "Mirror" is actually defined as a plastic within Radiance. You will need to use sometime like this in place of that material definition (as defined in http://radsite.lbl.gov/radiance/refer/usman2.pdf):

Void mirror Mirror
0
0
3 .992 .992 .992
One thing to note, you will need to be sure that the surface normal for the mirror is facing the right direction in your scene (up assuming it is the top of the light shelf). The reflection should then render assuming the sun arrives on the surface.

Chris Coulter
Associate
BuroHappold Engineering | Lighting Design
T: +1 212 334 2025
M: +1 646 574 2791
www.burohappold.com<http://www.burohappold.com/> | @burohappold<http://www.twitter.com/burohappold>

···

From: Valeria Portaluri [mailto:[email protected]]
Sent: Saturday, March 10, 2018 10:16 AM
To: Radiance general discussion <[email protected]>
Subject: Re: [Radiance-general] Infor Radiance

** External E-Mail **

I'm attaching both Radiance files. The image RCP_c1.jpg is my case study. This room reproduces the 1: 5 scale model of the real room that I'm studying. The jpg Esempio is what I need to see on my render.

Inviato da Outlook<https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Faka.ms%2Fweboutlook&data=02|01|chris.coulter%40burohappold.com|5340863162e24a6f8c0308d5869a2c04|50ee6418869e48f5a9823607fcee1e1d|0|1|636562919116251909&sdata=lKa6AiZ3OBesOUue08wgKnkWseL8Xdj1Nzybnd%2BGDPE%3D&reserved=0>

________________________________
Da: Gurneet <[email protected]<mailto:[email protected]>>
Inviato: sabato 10 marzo 2018 14:53
A: Radiance general discussion
Oggetto: Re: [Radiance-general] Infor Radiance

Hi Valeria,

How are you assigning material in radiance through Ecotect? I hope you have checked the rad file to ensure that the mirror properties are assigned to the light shelf. It would be good if you can share the model or the rad file so that I can try to debug the issue.

Regards

On Sat, Mar 10, 2018 at 6:33 PM, Valeria Portaluri <[email protected]<mailto:[email protected]>> wrote:

Hi,

I'm Valeria,I'm an italian student. I'm using Radiance (with Ecotect software) for the frist time for my thesis and I've very short time to resolve my problem because I did, during last months, experimental texts but now I need to compare theese tests with the software in 3 weeks maximum . I'm studying different types of light shelves but when I do the simulations on Radiance I can't see the reflection of the rays (of the sun) on surface and on walls too. I'm using "mirror" like material of the light shelf. I tried all things that I could find on internet and on forum too, but nothing! I'm really in trouble. Please help me ! Thanks

_______________________________________________
Radiance-general mailing list
[email protected]<mailto:[email protected]>
https://www.radiance-online.org/mailman/listinfo/radiance-general<https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.radiance-online.org%2Fmailman%2Flistinfo%2Fradiance-general&data=02|01|chris.coulter%40burohappold.com|5340863162e24a6f8c0308d5869a2c04|50ee6418869e48f5a9823607fcee1e1d|0|1|636562919116251909&sdata=7rgLnc1bSpydWbrcFHqspw6PDgkKLWfScaI4e%2BylWkQ%3D&reserved=0>

--
Gurneet Singh
Energy Analyst-Architect
M: 9899-240140

Also, make sure you render with -dr 1 or greater. I think the default in rvu is -dr 0, which turns off virtual sources.

Cheers,
-Greg

···

From: Chris Coulter <[email protected]>
Date: March 10, 2018 7:31:05 AM PST

Hi Valeria –

From your rad file, the material “Mirror” is actually defined as a plastic within Radiance. You will need to use sometime like this in place of that material definition (as defined in http://radsite.lbl.gov/radiance/refer/usman2.pdf):
Void mirror Mirror
0
0
3 .992 .992 .992
One thing to note, you will need to be sure that the surface normal for the mirror is facing the right direction in your scene (up assuming it is the top of the light shelf). The reflection should then render assuming the sun arrives on the surface.

Chris Coulter

From: Valeria Portaluri [mailto:[email protected]]
Sent: Saturday, March 10, 2018 10:16 AM
To: Radiance general discussion <[email protected]>
Subject: Re: [Radiance-general] Infor Radiance

** External E-Mail **

I'm attaching both Radiance files. The image RCP_c1.jpg is my case study. This room reproduces the 1: 5 scale model of the real room that I'm studying. The jpg Esempio is what I need to see on my render.

Inviato da Outlook

Da: Gurneet <[email protected]>
Inviato: sabato 10 marzo 2018 14:53
A: Radiance general discussion
Oggetto: Re: [Radiance-general] Infor Radiance

Hi Valeria,

How are you assigning material in radiance through Ecotect? I hope you have checked the rad file to ensure that the mirror properties are assigned to the light shelf. It would be good if you can share the model or the rad file so that I can try to debug the issue.

Regards

On Sat, Mar 10, 2018 at 6:33 PM, Valeria Portaluri <[email protected]> wrote:
Hi,
I'm Valeria,I'm an italian student. I'm using Radiance (with Ecotect software) for the frist time for my thesis and I've very short time to resolve my problem because I did, during last months, experimental texts but now I need to compare theese tests with the software in 3 weeks maximum . I'm studying different types of light shelves but when I do the simulations on Radiance I can't see the reflection of the rays (of the sun) on surface and on walls too. I'm using "mirror" like material of the light shelf. I tried all things that I could find on internet and on forum too, but nothing! I'm really in trouble. Please help me ! Thanks

Hi

You may find some useful explanations in my rather old tutorial document available on:
http://radsite.lbl.gov/radiance/refer/rc97tut.zip

Pages 25 and 26 may be the more relevant for your case.

Raphaël

Hi,

While exporting from Ecotect it is taking Ecotect materials and exporting
them as plastic with the color properties specified in Ecotect. There is a
way to use RADIANCE materials from within ECOTECT. Please see the below
link for short tutorial on how to achieve the same.

http://wiki.naturalfrequency.com/archive/ecotect/tutorials/lighting-rad-mats.htm

Regards

···

On Sun, Mar 11, 2018 at 12:34 PM Compagnon Raphaël < [email protected]> wrote:

Hi

You may find some useful explanations in my rather old tutorial document
available on:
http://radsite.lbl.gov/radiance/refer/rc97tut.zip

Pages 25 and 26 may be the more relevant for your case.

Raphaël

_______________________________________________
Radiance-general mailing list
[email protected]
https://www.radiance-online.org/mailman/listinfo/radiance-general

--
Gurneet Singh
Energy Analyst-Architect
M: 9899-240140