Official release: MareroQ & Pocholo "Cosmos" plugin

MareroQ · **Posted:** Sat Mar 19, 2022 3:17 pm **(#21)**

I didn't have much free time (the war in Europe changes priorities), but we publish another test version.
Some news and bug fixes (probably not all yet :oops:

).
We invite You to test again.

You can download a lot of gradients for the Ring from:
viewtopic.php?f=4&t=12737

Edit:The attachment has been removed as there is already a newer version available

ofnuts · **Joined:** Oct 25, 2010 **Posts:** 4812

Getting better but the shadow on the ring is too far (clockwise) given the position of the terminator on the planet. And since the sun is below the rings plane we should be seeing the dark side of the ring (thois could be just a matter of picking the adequate gradient for the ring).

racer-x · **Joined:** Apr 15, 2017 **Posts:** 1837

I like using it to make some components, then add my own.

Attachment:

Planet.jpg [ 330.13 KiB | Viewed 2265 times ]

Pocholo · **Posted:** Sun Mar 20, 2022 6:09 pm **(#24)**

Very nice, Racer. I'm glad like it. Thank you for the comment. :yes

MareroQ · **Posted:** Sun Mar 20, 2022 11:38 pm **(#25)**

@Ofnuts
I very much admire Your knowledge of astronomy.
It is difficult to include all cases, so we added the ability to manually adjust the shadow parameters on the disk.

@ Racer-x
And that's what it is all about (which we also encourage you to do in the "Help" tab).

Edit:The attachment has been removed as there is already a newer version available in post #44.

PixLab · **Posted:** Mon Mar 21, 2022 1:14 am **(#26)**

P&M I gave it a new try

A quick a first impression.
The auto shadow calculation is a bit off but the "Corect angle" option you gave to user can do the job, that's a cool option :coolthup

An orthographic suggestion, though: Corect should takes 2 r as "Correct"

In the end, that's like night and day compared to your first alpha, way better, you did a great job guys :clap

Attachment:

Untitled.jpg [ 252.7 KiB | Viewed 2237 times ]

MareroQ · **Posted:** Mon Mar 21, 2022 1:46 am **(#27)**

Thank You Patrice.
It was Your valuable comments that contributed to the corrections

We are waiting for new suggestions from all testers :yes

lylejk · **Joined:** Sep 24, 2010 **Posts:** 12822

Some pretty nice results from this one. Maybe Griatch might comment since he's our resident astronomer. lol

muffinn · **Joined:** Oct 04, 2016 **Posts:** 47

Sorry where is the Cosmos plugin download file

PixLab · **Posted:** Mon Mar 21, 2022 3:48 am **(#30)**

muffinn wrote:

Sorry where is the Cosmos plugin download file

There viewtopic.php?f=9&t=19849&start=20#p272503 just below the screenshot (or comment #25 on this page) :bigthup

muffinn · **Joined:** Oct 04, 2016 **Posts:** 47

Thanks for the link

MareroQ · **Posted:** Tue Mar 22, 2022 2:25 pm **(#32)**

Is it time for another trial version?
No new comments - so let's keep playing.
Mainly new tab "Strange" from Reptorian G'MIC filters.
The Flame filter has also been added (with interactive use, therefore it requires double acceptance: for the preview and the result).
Flame with a larger Windows preview can be downloaded from here:
https://www.gimpscripts.net/2020/11/fla ... 64bit.html

PixLab · **Posted:** Wed Mar 23, 2022 1:14 am **(#33)**

That's a great idea this new tab :coolthup

I got an idea, but... you might not like it, I see that in your "Strange" tab there is still some space, thus adding:

a magnetic field of a planet or even better the one of a magnetar? :mrgreen:

Attachment:

screenshot_20220323-140113.png [ 1.7 MiB | Viewed 2308 times ]

And / or the accretion disk of a black hole with lensing effect or/and without the lensing effect but with ejecta :hehe

Attachment:

screenshot_20220323-140938.png [ 1.18 MiB | Viewed 2308 times ]

Jokes aside I'm now going to try your new strange tab :bigthup

MareroQ · **Posted:** Wed Mar 23, 2022 1:34 am **(#34)**

Hi Patrice,

... it doesn't have to be just a good joke - just lead us (mini tut?) and we'll try to turn it into code and add it to the next version ...

PixLab · **Posted:** Wed Mar 23, 2022 8:57 am **(#35)**

MareroQ wrote:

Hi Patrice,

... it doesn't have to be just a good joke - just lead us (mini tut?) and we'll try to turn it into code and add it to the next version ...

I understood mate.
I already did some experiment (few things I'll like to speak about, but it's "tech" things if I can say that, in all case it's nice) :bigthup

In all cases you will have feedback from me, with the way I do it >> thus possible solution (maybe) in coming days, mark my word, I ill not let you down(might be a long post, though)

PixLab · **Posted:** Wed Mar 23, 2022 9:09 pm **(#36)**

Magnetic field / Magnetar

Attachment:

Untitled.jpg [ 256.66 KiB | Viewed 2250 times ]

I never did one before, so please bear with me as this is the way it came to my mind as a first draw, I started with a blue #0000FF, not so happy with the resulting color, in the end I did put a layer above with the "Incandescent" gradient in Mode "HSV Hue" (just personal taste).

Let's get started

First I use the Ellipse select tool with the planet as reference for the junction above and below planet symmetry mirror vertical activated to stroke the selection
Edit / Stroke Selection / Paint brush size 10 (only brushes works with symmetry, pencil, airbrush, etc...)

Attachment:

screenshot_20220324-083745.png [ 305.57 KiB | Viewed 2250 times ]

Then I did blur the strokes (Filters / Blur / Gaussian Blur...

Attachment:

screenshot_20220324-083955.png [ 349.41 KiB | Viewed 2250 times ]

Then I use the Recursive transform tool, moving each side toward center (inward) be sure the end result the central "cross" is in the center
Filters / Map / Recursive transform... Iteration > 3 "Paste Below" checked
DON'T click OK YET, but click the "+" button instead = A new controls appear pull them outward outside of the canvas, and like the first time be sure the end result the central "cross" is in the center

Then I just put the field below the planet and put Incandescent gradient HSV Hue above (just for my taste)

If you want to add thin lines inside the "vaporous" field, re-do all the very same steps, BUT this time without Gaussian blur (and a thinner brush)

ofnuts · **Joined:** Oct 25, 2010 **Posts:** 4812

PixLab wrote:

Magnetic field / Magnetar

Attachment:

Untitled.jpg

I never did one before, so please bear with me as this is the way it came to my mind as a first draw, I started with a blue #0000FF, not so happy with the resulting color, in the end I did put a layer above with the "Incandescent" gradient in Mode "HSV Hue" (just personal taste).

Let's get started

First I use the Ellipse select tool with the planet as reference for the junction above and below planet symmetry mirror vertical activated to stroke the selection
Edit / Stroke Selection / Paint brush size 10 (only brushes works with symmetry, pencil, airbrush, etc...)

Attachment:

screenshot_20220324-083745.png

Then I did blur the strokes (Filters / Blur / Gaussian Blur...

Attachment:

screenshot_20220324-083955.png

Then I use the Recursive transform tool, moving each side toward center (inward) be sure the end result the central "cross" is in the center
Filters / Map / Recursive transform... Iteration > 3 "Paste Below" checked
DON'T click OK YET, but click the "+" button instead = A new controls appear pull them outward outside of the canvas, and like the first time be sure the end result the central "cross" is in the center
[ Image ]

Then I just put the field below the planet and put Incandescent gradient HSV Hue above (just for my taste)
[ Image ]

If you want to add thin lines inside the "vaporous" field, re-do all the very same steps, BUT this time without Gaussian blur (and a thinner brush)

Artistically nice but in the real world this would be more like a sphere around the planet (the famous magnetic field shape we are all familiar with is really the intersection of the field for the magnet with the sheet of paper).

PixLab · **Posted:** Thu Mar 24, 2022 3:34 am **(#38)**

ofnuts wrote:

Artistically nice but in the real world this would be more like a sphere around the planet (the famous magnetic field shape we are all familiar with is really the intersection of the field for the magnet with the sheet of paper).

Thanks ofnuts for your kind word, :tyspin

indeed this magnetic field is from a another dimension, the coming blackhole with ejecta is also something from another universe :hehe

(I did try hard to make it as very simple as possible, though, but still I'm not satisfied)

Attachment:

black hole accretion disc with ejecta_1_1.jpg [ 75.03 KiB | Viewed 2233 times ]

ofnuts · **Joined:** Oct 25, 2010 **Posts:** 4812

PixLab wrote:

ofnuts wrote:

Artistically nice but in the real world this would be more like a sphere around the planet (the famous magnetic field shape we are all familiar with is really the intersection of the field for the magnet with the sheet of paper).

Thanks ofnuts for your kind word, :tyspin

indeed this magnetic field is from a another dimension, the coming blackhole with ejecta is also something from another universe :hehe

(I did try hard to make it as very simple as possible, though, but still I'm not satisfied)

Attachment:

black hole accretion disc with ejecta_1_1.jpg

The black hole is from another universe too because it doesn't bend the light of the accretion disk behind it. They computed what a black hole would look like and it turns out they were basically right.

PixLab · **Posted:** Thu Mar 24, 2022 11:58 am **(#40)**

ofnuts wrote:

PixLab wrote:

ofnuts wrote:

Artistically nice but in the real world this would be more like a sphere around the planet (the famous magnetic field shape we are all familiar with is really the intersection of the field for the magnet with the sheet of paper).

Thanks ofnuts for your kind word, :tyspin

indeed this magnetic field is from a another dimension, the coming blackhole with ejecta is also something from another universe :hehe

(I did try hard to make it as very simple as possible, though, but still I'm not satisfied)

Attachment:

The attachment black hole accretion disc with ejecta_1_1.jpg is no longer available

The black hole is from another universe too because it doesn't bend the light of the accretion disk behind it. They computed what a black hole would look like and it turns out they were basically right.

Indeed, you're right (and I did started)

Attachment:

screenshot_20220324-154053.png [ 326.44 KiB | Viewed 2193 times ]

but a black hole like in Interstellar(or your link) that's when you're watching it edge on or slightly angled edge-on (and close to it?), but not face on https://www.youtube.com/watch?v=zUyH3XhpLTo

Anyway I am in a more "artistico-not-so-real" interpretation, if I can say that, a bit like this > https://www.youtube.com/watch?v=fu3645D4ZlI&t=84s or a one with lensing effect.
And I have a good excuse for that as it should go in the "Strange" tab of P&M plugin, if they can adapt it :hehe