[yt-users] Stars on volume rendering

[John Wise]

Hi Libby,

I'm afraid that there isn't a good solution for rendering stars, at 
least to my knowledge!

You can add them as pixels after you've determined the pixel numbers (as 
in Andrew's email) of the particles with the splat_points() routine in 
the image_writer module.

I wrote my own stand-alone splatter to put Gaussian splats for 
particles, but I never incorporated it into yt.  I meant to a few months 
back when I wrote it but never did!  It will produce these types of splats

http://www.astro.princeton.edu/~jwise/research/GalaxyBirth_files/combine.png

I had to manually blend the gas volume rendering and star splats 
afterwards to produce that image.

I hope I can make something that looks as good as partiview soon.  This 
is the same dataset but with partiview.

http://www.astro.princeton.edu/~jwise/research/GalaxyBirth_files/stars_only.png

I'll see if I can make time (first I have to find the code!) to 
incorporate my splatter into yt.

John

On 01/06/2011 09:15 AM, Elizabeth Harper-Clark wrote:
> Hi all,
>
> Thanks for all your help over the last couple of days. One more question:
>      -  Can I plot particles on a volume rendered image?
> I have stars and I want to show where they are!
>
> Thanks,
>
> Libby
>
> --
> Elizabeth Harper-Clark MA MSci
> PhD Candidate, Canadian Institute for Theoretical Astrophysics, UofT
> Sciences and Engineering Coordinator, Teaching Assistants' Training
> Program, UofT
>
> www.astro.utoronto.ca/~h-clark <http://www.astro.utoronto.ca/%7Eh-clark>
> h-clark at cita.utoronto.ca <mailto:h-clark at cita.utoronto.ca>
> Astronomy office phone: +1-416-978-5759
>
>
>
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