Hi Kyriaki, On Wed, Dec 17, 2014 at 7:00 PM, Dionysopoulou K. < K.Dionysopoulou@soton.ac.uk> wrote:

Hi Nathan and Jill,

thanks for your very quick response. I will wait for the modifications to the export_obj function then. On another matter, how easy would it be to pass volume renderings to sketchfab instead of the isosurfaces? What I have in mind is something similar to this

http://vimeo.com/104706172

but for uniform_grid data. This would be very useful when producing movies of volume renderings.

As far as I know, sketchfab only renders surfaces, while volume renderings would be a different rendering process in WebGL. It would be cool if they started though!

Thanks once again,

Kyriaki Dionysopoulou ======================================================= Mathematical Sciences University of Southampton Southampton, SO17 1BJ, UK K.Dionysopoulou@soton.ac.uk<mailto:K.Dionysopoulou@soton.ac.uk>

On 17 Dec 2014, at 23:30, Nathan Goldbaum <nathan12343@gmail.com<mailto: nathan12343@gmail.com>> wrote:

On Wed Dec 17 2014 at 3:29:49 PM Naiman, Jill <jill.naiman@cfa.harvard.edu <mailto:jill.naiman@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@soton.ac.uk<mailto:K.Dionysopoulou@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<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@soton.ac.uk<mailto:K.Dionysopoulou@soton.ac.uk><mailto: K.Dionysopoulou@soton.ac.uk<mailto:K.Dionysopoulou@soton.ac.uk>>

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