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Author Topic: New sky textures Part 3  (Read 6702 times)

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Uufflakke

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Re: New sky textures Part 3
« Reply #12 on: March 27, 2015, 02:02:40 PM »


A long time ago, I have tried to do colored skies with personal pictures.
The results were absolutely disastrous.
With a lot of experimentations I finally found how to do for exactly connect the sides
of the textures two by two: up and down, right and left, and the corners...
(However it is not as easy as it seems and it takes a lot of time, work and tests ...)

If I understand correctly you are talking about making textures seamless so you don't see where one texture ends and the next one begins?
There are a couple of options of how to do this in GIMP for instance.
Here is how I did it by using normal images.
http://www.sas1946.com/main/index.php/topic,39601.0.html
(original post and reply #7 and #9)

My 1st attempt in creating high clouds.



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SAS~Tom2

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Re: New sky textures Part 3
« Reply #13 on: March 27, 2015, 03:16:57 PM »

Many thanks, Thierry!

 :P
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farang65

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Re: New sky textures Part 3
« Reply #14 on: March 27, 2015, 06:24:30 PM »

If we take pictures of interest sky/cloud settings can we send the pictures to you for possible future development ;D
The other day since we hadn't had any rain for quite some time I saw an awesome sky cloud formation.A distance away  grey rain with an awesome dark cloud formation it wasn't moving too much just hanging there.
Lamphun, Thailand.
Kirby
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tbauchot

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Re: New sky textures Part 3
« Reply #15 on: March 28, 2015, 02:39:27 PM »

If I understand correctly you are talking about making textures seamless so you don't see where one texture ends and the next one begins?
There are a couple of options of how to do this in GIMP for instance.
Here is how I did it by using normal images.
http://www.sas1946.com/main/index.php/topic,39601.0.html
(original post and reply #7 and #9)
[/quote]
Hi Uufflakke,

I do not think that we are talking about exactly the same thing.
My English is pretty basic and it is quite difficult for me to express myself in technical language ...
Sorry for that ! ;)
Thank you very much for the links and I will have a look to GIMP.
The functions that you describe are probably very useful for simple and regular textures but probably
not for more elaborate compositions.
Personally I use Photoshop since a long time.

However I do not think that any graphics program can do this work of composition for me :
( surely some pictures will talk better than me !  ;)  )

starting image :

assembled starting image : (up-down , left-right )

initial image assembled corrected and reconstructed :
(With parts of over similar pictures of the same sky )

the final image resized in square :

the alpha channel of the same image :
(Black = transparent portions that leave see the beautiful sky background level of IL-2.
White = not transparent parts letting see my sky texture.
Gray = All intermediate transparencies. )

And now the rendering of the sky in the game :

Obviously I'm not talking about the contrasts adjustments, color and density, both in alpha channel that in RGB levels and the countless tests that this implies...
Your sky is very "Wagnerian" very impressive, Bravo !!!
I really appreciate !
But it reopens the debate of skies randomly selected by a software ... I rest on the idea that we should be able to choose a sky just like the clouds in the FMB ... For he will not be suitable for a mission planned for clear skies ! Smiles ... ;)

This little explanation about the creation of a sky is very basic and many steps are not shown, but I think it will inform interested persons...

Regards, Thierry :)


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tbauchot

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Re: New sky textures Part 3
« Reply #16 on: March 28, 2015, 03:18:33 PM »

If we take pictures of interest sky/cloud settings can we send the pictures to you for possible future development ;D
The other day since we hadn't had any rain for quite some time I saw an awesome sky cloud formation.A distance away  grey rain with an awesome dark cloud formation it wasn't moving too much just hanging there.
Lamphun, Thailand.
Kirby

Hi farang65,

Thank you very much for your interest in the topic, but at the risk of disappointing you I will answer as Cyberolas when he said: "I do not choose the map is the map that chooses me ..."
It's the same for me for the skies :
I do not call the sky, it is he who calls me and inspires me especially ...
This has always been my approach over 20 years of professional photography when I made artistic landscape photography.
So I remain in this state of mind. The only difference is that today I generously share with others who have the same approach. But I would not want to impose me constraints that I could not getting out ...
In the hope to have not offended you, I hope you will understand me... ;)

Best regards, Thierry.   :)
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Uufflakke

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Re: New sky textures Part 3
« Reply #17 on: March 29, 2015, 04:17:53 AM »

Interesting to see how you do it.
Beside the method of making textures seamless by using the OFFSET option in GIMP there are other methods also.
In this short tutorial 2 different ways of making textures seamless are explained. 2nd one is quite similar to the way you do it.
Maybe it is helpful in some way.

https://www.youtube.com/watch?v=r-i2gU_LMK4
(GIMP is mentioned many times at SAS1946 because it is freeware.)

For me it is just a humble experiment.
Besides 'Wagnerian' sky my humble experiment reminds me of the paintings by Caspar David Friedrich.  :)


photos upload


free upload


Thanks for sharing the information about the way you create sky textures.
Your new high clouds add so much to the immersion of the game.  8)
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tbauchot

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Re: New sky textures Part 3
« Reply #18 on: March 29, 2015, 08:24:44 AM »

Interesting to see how you do it.
Beside the method of making textures seamless by using the OFFSET option in GIMP there are other methods also.
In this short tutorial 2 different ways of making textures seamless are explained. 2nd one is quite similar to the way you do it.
Maybe it is helpful in some way.

https://www.youtube.com/watch?v=r-i2gU_LMK4
(GIMP is mentioned many times at SAS1946 because it is freeware.)

Thank you very much Uufflakke,

I think that the first tool explained in the tutorial could be very useful for simple textures.

The second method (vertical and horizontal flip.) was the first method that I tried, logically, by myself, at first, in order to harmonize textures together.
But this  textures symmetry could not provide satisfactory results. So I continued my research by the method previously described in my previous reply. ;)

I have downloaded GIMP, thank you for sharing and for your help.   :)

Painters are a great source of inspiration, but what we must remember above all, it is not so much their work, but how they can influence us in the way we see, perceive and look at nature around us ...

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farang65

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Re: New sky textures Part 3
« Reply #19 on: March 29, 2015, 11:41:02 PM »

No worries  :D
With your recent info on making sky textures it is very valuable  :D
I have not dealt with alpha layers before so it could be a new experience.
At the moment I do have a number of your skies in current WIPS  ;)

Cheers
Kirby
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