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 Post subject: GEGL Starfield - Partially Inspired by David Wood's fireworks guide
PostPosted: Thu Jul 21, 2022 4:07 pm  (#1) 
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We have a new GEGL starfield filter that I made. It is partially based around David Wood's firework tutorial and the classic Windows XP screensaver.

https://github.com/LinuxBeaver/GEGL-Starfield

Image


Image


Also the raw GEGL graph to making the filter is
color-overlay value=#ffffff

noise-hsv saturation-distance=0.000 value-distance=4  holdness=4.5 seed=4

invert

levels   out-high=4.10 in-high=0.3

gamma value=55

gaussian-blur std-dev-x=1.0 std-dev-y=1.0
crop
softglow


Enjoy!


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 Post subject: Re: GEGL Starfield - Partially Inspired by David Wood's fireworks guid
PostPosted: Thu Jul 21, 2022 4:30 pm  (#2) 
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Update, Filter now has a zoom motion blur slider!


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 Post subject: Re: GEGL Starfield - Partially Inspired by David Wood's fireworks guid
PostPosted: Thu Jul 21, 2022 5:06 pm  (#3) 
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Looking good man. My two most used filters when I want to create effects are HSV Noise and Solid Noise so seeing more uses for them is always good.

Maybe add a precompiled version so it's more easily accessible, I've never gotten into coding. ;)

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 Post subject: Re: GEGL Starfield - Partially Inspired by David Wood's fireworks guid
PostPosted: Thu Jul 21, 2022 8:33 pm  (#4) 
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There you go!

For GIMP 2.10:
Version for Gimp-2.10.32 Win 64 Bit attached.
Place the file in Gegl plugins in a directory: C:\Users\YourName\AppData\Local\gegl-0.4\plug-ins
If you're missing the plugin-ins folder, create one.

In menu Tools➤ GEGL Operation➤ Starfield


Attachments:
Gegl_Starfield.zip [38.22 KiB]
Downloaded 85 times

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 Post subject: Re: GEGL Starfield - Partially Inspired by David Wood's fireworks guid
PostPosted: Thu Jul 21, 2022 10:14 pm  (#5) 
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I am so amazed by what all of you can do! Thank you, many times!


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 Post subject: Re: GEGL Starfield - Partially Inspired by David Wood's fireworks guid
PostPosted: Fri Jul 22, 2022 12:43 am  (#6) 
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It works great... thanks


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 Post subject: Re: GEGL Starfield - Partially Inspired by David Wood's fireworks guid
PostPosted: Fri Jul 22, 2022 1:30 am  (#7) 
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Thanks Pocholo! Wilber ( and GIMP), will always be a star. :)

Attachment:
wilbers_a_STAR.png
wilbers_a_STAR.png [ 43.06 KiB | Viewed 3765 times ]


I was just thinking if i would have moved those two larger stars to become Wilbers eyes he would be a constellation. :)

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 Post subject: Re: GEGL Starfield - Partially Inspired by David Wood's fireworks guid
PostPosted: Fri Jul 22, 2022 2:03 am  (#8) 
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Wow @contrast_ your filter is very nice and simplifies the way I do stars BG in just one filter. Thank you very much :tyspin

Attachment:
star fight.jpg
star fight.jpg [ 1.2 MiB | Viewed 3743 times ]

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 Post subject: Re: GEGL Starfield - Partially Inspired by David Wood's fireworks guid
PostPosted: Sat Jul 23, 2022 6:56 pm  (#9) 
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That picture feels so early 2000s Windows XP-ish I love it

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 Post subject: Re: GEGL Starfield - Partially Inspired by David Wood's fireworks guid
PostPosted: Sat Jul 23, 2022 8:00 pm  (#10) 
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Hey Rod! The credit really goes to contrast_ :clap who created the Gegl filter, I just only compiled it for Windows users.

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 Post subject: Re: GEGL Starfield - Partially Inspired by David Wood's fireworks guid
PostPosted: Sat Jul 23, 2022 10:10 pm  (#11) 
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For various reasons, the best for me (taking into account Ofnuts' comments) is
Create a starfield plugin.

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 Post subject: Re: GEGL Starfield - Partially Inspired by David Wood's fireworks guid
PostPosted: Sat Jul 23, 2022 11:55 pm  (#12) 
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David Wood wrote:
That picture feels so early 2000s Windows XP-ish I love it


I would have said "from a sick brain of the ~90s", though :hehe
Thanks David for the kind word. :bigthup

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 Post subject: Re: GEGL Starfield - Partially Inspired by David Wood's fireworks guid
PostPosted: Sun Jul 24, 2022 12:26 am  (#13) 
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Pocholo wrote:
Hey Rod! The credit really goes to contrast_ :clap who created the Gegl filter, I just only compiled it for Windows users.

Yes a big thanks to contrast_ as well.

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Edmund Burke nailed it when he said, "The only thing necessary for the triumph of evil is for good men to do nothing."


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 Post subject: Re: GEGL Starfield - Partially Inspired by David Wood's fireworks guid
PostPosted: Sun Jul 24, 2022 8:46 am  (#14) 
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MareroQ wrote:
.../..(taking into account Ofnuts' comments) .../....


On that note, @contrast_ is possible to limit the stars colors within the Plank's law? To not have green nor pink or other strange colors.
The color range a bit something like below (Ok, the "white" part in the gradient is too big :mrgreen: )
Attachment:
Untitled.jpg
Untitled.jpg [ 22.62 KiB | Viewed 3455 times ]


As for an example, Albireo A and B in the Cygnus constellation shows well the difference in temperature (A is ~4000k and B is ~13000k)
Image

Or the Antares system
Image

Stars images are from Wikipedia
https://en.wikipedia.org/wiki/Albireo#/ ... lbireo.jpg
https://en.wikipedia.org/wiki/Green_star_(astronomy)#/media/File:Antares_System.jpg

On a side note, plumbers got it wrong with their marking on the faucet, colors for hot and cold water should have been the opposite as the whole universe shows us :hehe

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 Post subject: Re: GEGL Starfield - Partially Inspired by David Wood's fireworks guid
PostPosted: Sun Jul 24, 2022 4:40 pm  (#15) 
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no. The filter is based on hsv noise and can only do what hsv noise can do.


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 Post subject: Re: GEGL Starfield - Partially Inspired by David Wood's fireworks guid
PostPosted: Mon Jul 25, 2022 10:50 am  (#16) 
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That's OK :bigthup

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 Post subject: Re: GEGL Starfield - Partially Inspired by David Wood's fireworks guid
PostPosted: Sat Jan 14, 2023 10:18 pm  (#17) 
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Starfield got an update that makes it work regardless if the background is opaque or not. It works on normal transparent backgrounds.


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