Colouring shadows

Dear All,

I am trying to complete some overshadowing comparisons between an existing
and proposed buildings. I would like to generate a single set of time based
images to show the extent of any additional shading from the proposed
compared to the existing situation.

I would like to be able to highlight the shadows from each building in a
different colour. I could run the simulations twice, for each building with
a bias on the rgb of the sun and combine the images, but I am not sure
whether this would work.

Can anyone provide me with some guidance.

Many thanks

Nickd

Nick,
Is Radiance really the right tool to accomplish what you are trying to
do? There is a program www.squ1.com called EcoTect that allows you to
conduct overshadowing studies and select shadow colors for different
objects. A demo is available for download at www.squ1.com. Also, EcoTect
models can be exported to Radiance.

Email me offline if you'd like to discuss further.

Best,
John

···

----------------------------------------------------------------------

Message: 1
Date: Thu, 8 Feb 2007 08:15:41 -0000
From: "Nick Devlin" <[email protected]>
Subject: [Radiance-general] Colouring shadows
To: <[email protected]>
Message-ID:
  
<[email protected]>
Content-Type: text/plain; charset="us-ascii"

Dear All,

I am trying to complete some overshadowing comparisons between an
existing and proposed buildings. I would like to generate a single set
of time based images to show the extent of any additional shading from
the proposed compared to the existing situation.

I would like to be able to highlight the shadows from each building in a
different colour. I could run the simulations twice, for each building
with a bias on the rgb of the sun and combine the images, but I am not
sure whether this would work.

Can anyone provide me with some guidance.

Many thanks

Nickd

------------------------------

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End of Radiance-general Digest, Vol 36, Issue 5
***********************************************

Building on John's comment. If you want to learn how to use
Ectoect/Radiance/Daysim you might want to check out the Getting Started
document that we put together for our sutdents at McGill:
http://www.arch.mcgill.ca/prof/reinhart/software/GettingStarted.pdf

Christoph

···

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of John
An
Sent: Thursday, February 08, 2007 8:06 AM
To: [email protected]
Cc: [email protected]
Subject: [Radiance-general] RE:Colouring shadows

Nick,
Is Radiance really the right tool to accomplish what you are trying to
do? There is a program www.squ1.com called EcoTect that allows you to
conduct overshadowing studies and select shadow colors for different
objects. A demo is available for download at www.squ1.com. Also, EcoTect
models can be exported to Radiance.

Email me offline if you'd like to discuss further.

Best,
John

----------------------------------------------------------------------

Message: 1
Date: Thu, 8 Feb 2007 08:15:41 -0000
From: "Nick Devlin" <[email protected]>
Subject: [Radiance-general] Colouring shadows
To: <[email protected]>
Message-ID:
  
<[email protected]>
Content-Type: text/plain; charset="us-ascii"

Dear All,

I am trying to complete some overshadowing comparisons between an
existing and proposed buildings. I would like to generate a single set
of time based images to show the extent of any additional shading from
the proposed compared to the existing situation.

I would like to be able to highlight the shadows from each building in a
different colour. I could run the simulations twice, for each building
with a bias on the rgb of the sun and combine the images, but I am not
sure whether this would work.

Can anyone provide me with some guidance.

Many thanks

Nickd

------------------------------

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

End of Radiance-general Digest, Vol 36, Issue 5
***********************************************

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Hi Nick,

If you want to do this in Radiance, you can use the "picdiff.cal" definitions in ray/src/cal/cal like so:

  pcomb -f picdiff.cal -o sceneA.pic -o sceneB.pic > sceneCmp.pic

This should give you more or less what you're after.

-Greg

···

From: "Nick Devlin" <[email protected]>
Date: February 8, 2007 12:15:41 AM PST

Dear All,

I am trying to complete some overshadowing comparisons between an existing
and proposed buildings. I would like to generate a single set of time based
images to show the extent of any additional shading from the proposed
compared to the existing situation.

I would like to be able to highlight the shadows from each building in a
different colour. I could run the simulations twice, for each building with
a bias on the rgb of the sun and combine the images, but I am not sure
whether this would work.

Can anyone provide me with some guidance.

Many thanks

Nickd