[yt-users] export_obj function for Blender3D

Nathan Goldbaum nathan12343 at gmail.com
Wed Dec 17 15:30:54 PST 2014


On Wed Dec 17 2014 at 3:29:49 PM Naiman, Jill <jill.naiman at cfa.harvard.edu>
wrote:

> Hi Kyriaki,
>
> The export_obj needs to be updated, I've got a fixed copy I've been
> meaning to push to the repository, so maybe I should just get on that!
>
> Other folks - let me know if someone should first file a bug report, or if
> I should just fix & push.
>

If you will get the fix out in the next couple of days, there's probably no
need to file an issue.  If it will take a while, it's nice to have a bug
that we can reference if people ask questions about it in the future.


>
> Cheers,
> -Jill
>
> On Wed, Dec 17, 2014 at 6:01 PM, Dionysopoulou K. <
> K.Dionysopoulou at soton.ac.uk> wrote:
>>
>> Dear all,
>>
>> I am trying to use the yt export_obj function in order to be able to use
>> yt in conjunction with Blender3D. I am very new to yt, so I tried the
>> simple example you have here:
>>
>> http://yt-project.org/doc/visualizing/sketchfab.html
>>
>> and here
>>
>> http://blog.yt-project.org
>>
>> My problem is that even when using the data suggested in the webpage the
>> code snippet provided fails to produce the mtl and obj files. After taking
>> a quick look at the code I noticed the initial problem was caused by
>> inconsistent units for the emissivity (maybe a typo in the docs?). I also
>> changed ‘mpc’ to ‘Mpc’ as yt was complaining that the domain was too small.
>> Even after these minor changes the export_obj function does not seem to
>> work for me. The error messages are attached in the python notebook below
>> (the notebook is basically just a copy and paste from the provided ones in
>> the websites above).
>>
>> The similar (but different) export_sketchfab function seems to work fine
>> for the same data. I cannot really figure out what goes wrong with the
>> export_obj function and any help would be very much appreciated.
>>
>>
>>
>> Thanks in advance,
>>
>>
>> Kyriaki Dionysopoulou
>> =======================================================
>> Mathematical Sciences
>> University of Southampton
>> Southampton, SO17 1BJ, UK
>> K.Dionysopoulou at soton.ac.uk<mailto:K.Dionysopoulou at soton.ac.uk>
>>
>>
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