Dear All,
I am a fairly new user. I need to know how to import a 3D autocad mesh into radiance,
and after importing it, will the geometry files be automatically updated so i can easily assign the materials ?
Please help me out on this one as i need to start using radiance for my thesis.
regards,
Ali.
Hi Ali,
I will try to give you a few hints on this topic. To get geometry into Radiance one needs to export the geometry from their modeling application of choice into a format that can be readily converted to Radiance's format. From Autocad, one solution is to use radout which can be found on Georg Mischler's site:
http://www.schorsch.com/download/radout/
Note though that this will only work up through Autocad 2000 as far as I know. However one of the nice things about this application is that it exports directly to Radiances file format.
Now if your mesh needs to have "mesh" type properties such as local U,V coordinates you will need to use an intermediate application such as Rhino or PolyTrans which can read in Autocad .dwg format files and export to .obj. This can then be converted with Radiance's obj2rad or obj2mesh command.
Now I am not clear on what you mean about the files being "automatically" updated. Material assignment is done based on the geometry groupings (such as by layer name or layer color are the two conventions available from radout). You will need to create a material file that defines materials for each element of geometry that has been exported.
Note, if you are going to use Radiance as part of your Thesis work, I would strongly urge you to get a copy of "Rendering with Radiance" which is loaded with a great deal of very useful information.
Regards,
-Jack de Valpine
sasa mj wrote:
Dear All,
I am a fairly new user. I need to know how to import a 3D autocad mesh into radiance,
and after importing it, will the geometry files be automatically updated so i can easily assign the materials ?Please help me out on this one as i need to start using radiance for my thesis.
regards,
Ali._______________________________________________
Radiance-general mailing list
[email protected]
http://www.radiance-online.org/mailman/listinfo/radiance-general
--
# Jack de Valpine
# president
#
# visarc incorporated
# http://www.visarc.com
#
# channeling technology for superior design and construction
These two commands will help you in the task.
3ds3mgf
mgf2rad
Optionally you may use
torad or dxf2rad.
I use obj (obj2rad and obj2mesh) as an exchange file format but I do not
think that autocad has this option. You may investigate blender and brad
or an alternative commercial solution (maya, cinema, max, rhino...).
Additionally there is a script that eliminates the material descriptions
from 3ds converted files and allows you to use a custom file for them
(this would facilitate updating the model if using 3ds). Look for it on
this email list, it's somewhere.
Anyway the strategy is almost the same with all of them: you create a 3d
file within your favourite software, save as an exchange format, run the
conversion command, compile the scene and generate the results.
Every time you change the model in a 3d software you need to import it
again (this can be automated with a script).
hope this is useful.
ciao
G.
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of sasa
mj
Sent: 13 June 2006 18:27
To: [email protected]
Subject: [Radiance-general] How can I...
Dear All,
I am a fairly new user. I need to know how to import a 3D autocad mesh
into
radiance,
and after importing it, will the geometry files be automatically updated
so
i can easily assign the materials ?
Please help me out on this one as i need to start using radiance for my
thesis.
regards,
Ali.
_______________________________________________
Radiance-general mailing list
[email protected]
http://www.radiance-online.org/mailman/listinfo/radiance-general
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