It is currently Wed Jun 03, 2026 11:30 pm


All times are UTC - 5 hours [ DST ]



Post new topic Reply to topic  [ 14 posts ] 
Author Message
 Post subject: Fantasy fjord
PostPosted: Wed Nov 22, 2017 12:25 pm  (#1) 
Offline
GimpChat Member
User avatar

Joined: Apr 09, 2016
Posts: 580
Location: Sheffield UK
Attachment:
Fantasy_fjord.jpg
Fantasy_fjord.jpg [ 99.83 KiB | Viewed 2909 times ]

_________________
Image


Share on Facebook Share on Twitter Share on Orkut Share on Digg Share on MySpace Share on Delicious Share on Technorati
Top
 Post subject: Re: Fantasy fjord
PostPosted: Wed Nov 22, 2017 1:48 pm  (#2) 
Offline
Administrator
User avatar

Joined: Aug 10, 2012
Posts: 14011
Location: Native to NYC living in Arizona, Gimp 2.8 - 3.0, Win 11 PC.
...Image...

_________________
Image
"A wise man learns more from a foolish question than a fool can learn from a wise answer"
Image


Top
 Post subject: Re: Fantasy fjord
PostPosted: Wed Nov 22, 2017 5:46 pm  (#3) 
Offline
Script Coder
User avatar

Joined: Oct 25, 2010
Posts: 4812
Nice, but why is the sun not reflecting in the water? There is also a bit of sun halo sticking out under the mountain and there is a rather poor job to hide it under a rectangle. And why is the kayak's bow out of the very calm water?

_________________
Image


Top
 Post subject: Re: Fantasy fjord
PostPosted: Thu Nov 23, 2017 7:22 am  (#4) 
Offline
GimpChat Member
User avatar

Joined: Apr 09, 2016
Posts: 580
Location: Sheffield UK
Thankyou Wallace and ofnuts. I have tried to address your feedback, here's my attempt.
Attachment:
Fantasy_fjord2.jpg
Fantasy_fjord2.jpg [ 103.5 KiB | Viewed 2815 times ]

here's my xcf
Attachment:
Fantasy_fjord.zip [1.95 MiB]
Downloaded 153 times

_________________
Image


Top
 Post subject: Re: Fantasy fjord
PostPosted: Thu Nov 23, 2017 8:20 am  (#5) 
Offline
GimpChat Member
User avatar

Joined: Apr 15, 2017
Posts: 1837
Perhaps a little ripple on the water surface?

Attachment:
Fantasy_fjord.jpg
Fantasy_fjord.jpg [ 111.75 KiB | Viewed 2811 times ]


Top
 Post subject: Re: Fantasy fjord
PostPosted: Thu Nov 23, 2017 10:14 am  (#6) 
Offline
GimpChat Member
User avatar

Joined: Mar 23, 2012
Posts: 7388
Location: Göteborg at last!
That's nice RJKD. Very serene.


Top
 Post subject: Re: Fantasy fjord
PostPosted: Thu Nov 23, 2017 2:12 pm  (#7) 
Offline
Script Coder
User avatar

Joined: Oct 25, 2010
Posts: 4812
RJKD wrote:
Thankyou Wallace and ofnuts. I have tried to address your feedback, here's my attempt.
Attachment:
Fantasy_fjord2.jpg

here's my xcf
Attachment:
Fantasy_fjord.zip

definitely better, but the weird rectangle is even more visible, and the kayak could have a reflection.

_________________
Image


Top
 Post subject: Re: Fantasy fjord
PostPosted: Thu Nov 23, 2017 2:14 pm  (#8) 
Offline
Script Coder
User avatar

Joined: Oct 25, 2010
Posts: 4812
racer-x wrote:
Perhaps a little ripple on the water surface?

Given the perspective, it's a little ripple at the bottom of the picture, but a tsunami in the back :)

_________________
Image


Top
 Post subject: Re: Fantasy fjord
PostPosted: Thu Nov 23, 2017 9:10 pm  (#9) 
Offline
GimpChat Member

Joined: Sep 20, 2016
Posts: 293
I like RJKD's original version best. As a composition it was perfect.
The image creates a very powerful mood.
It looks almost vector-drawn and reminds me for some reason of the movie Tron.

What ofnuts calls the sun, is a moon in my opinion and im not sure, the lightsource would be visible in the lake.

I think the added ripples make it too busy and steal the attention from the serene mood it had in its original state.


Top
 Post subject: Re: Fantasy fjord
PostPosted: Fri Nov 24, 2017 3:53 am  (#10) 
Offline
GimpChat Member
User avatar

Joined: Mar 23, 2012
Posts: 7388
Location: Göteborg at last!
Konstantin wrote:
im not sure, the lightsource would be visible in the lake.

I'm with you. When you look at a reflection in a lake, you are looking down at the scene as if you were looking up at the real scene. The angle is a lot different to the angle you view the real scene so the details you see will be different. In this case the moon may be hidden. There should however be some indication of it's light at the edge of the mountain.


Top
 Post subject: Re: Fantasy fjord
PostPosted: Fri Nov 24, 2017 5:58 am  (#11) 
Offline
Script Coder
User avatar

Joined: Oct 25, 2010
Posts: 4812
Erisian wrote:
Konstantin wrote:
im not sure, the lightsource would be visible in the lake.

I'm with you. When you look at a reflection in a lake, you are looking down at the scene as if you were looking up at the real scene. The angle is a lot different to the angle you view the real scene so the details you see will be different.


True for close objects, but not for the ones far away(*). Clue: the reflections of the mountains at the back of the fjord are exactly symmetrical. Why should the moon be different?

(*) more accurately, the difference is too small to be seen. Assuming the end of the fjord is 10km away, the reflection of the moon shows the moon as sen from there, but the difference of angle for 10km over the moon's 300.000km orbit is well under the eye separation power.

_________________
Image


Top
 Post subject: Re: Fantasy fjord
PostPosted: Sun Nov 26, 2017 7:00 am  (#12) 
Offline
GimpChat Member
User avatar

Joined: Mar 23, 2012
Posts: 7388
Location: Göteborg at last!
ofnuts wrote:
True for close objects, but not for the ones far away(*). Clue: the reflections of the mountains at the back of the fjord are exactly symmetrical. Why should the moon be different?

(*) more accurately, the difference is too small to be seen. Assuming the end of the fjord is 10km away, the reflection of the moon shows the moon as sen from there, but the difference of angle for 10km over the moon's 300.000km orbit is well under the eye separation power.

Hmmm, my observation skills have been dampened by too much dishwashing! :gaah I don't think the mountains are that far away otherwise we would not see a reflection due to the curve of the Earth. I'm trying to imagine this from the perspective of my eye level. I'm about six foot tall (you'll have to do your own metric conversion) If my eyes were nearly six foot under the ground looking up at the real mountain, would I still see the moon? :(


Top
 Post subject: Re: Fantasy fjord
PostPosted: Sun Nov 26, 2017 9:02 am  (#13) 
Offline
Script Coder
User avatar

Joined: Oct 25, 2010
Posts: 4812
Question of distance of the obstacle. Assume the moon is roughly 45° above the horizon. If you are near your garden hedge, you can see the moon over the hedge, but in the puddle at your feet all you will see is the hedge. Move back 12 feet (twice your height), in the puddle which is half-way between you and the hedge you'll see half the moon. For something which is D=1km away, and an individual who is h=1.8m tall, the difference of angle is:
Δθ=atan(2*h/D)=atan(.00360)=0.21°

Compare to the moon's angle with is roughly .5° (in the art, it appears much bigger than this... but then it could be a picture assuming a telescope). So assuming the closer rocks in the back are 1km away (which I find awfully close, especially with the telescope hypothesis), the moon would disappear in the reflection only if its top third was showing. And if these rocks in the back are that close, then the reflection of the mountains behind them wouldn't be so symmetrical either. And if the reflection of the moon isn't showing, it's because the part of the water that could reflect the moon is in the shadow of the rocks, but the drawing doesn't show any shadow on the water...

To get an idea of how big the moon really is: https://petapixel.com/2013/08/22/this-e ... t-shopped/

_________________
Image


Top
 Post subject: Re: Fantasy fjord
PostPosted: Mon Nov 27, 2017 7:00 am  (#14) 
Offline
GimpChat Member
User avatar

Joined: Mar 23, 2012
Posts: 7388
Location: Göteborg at last!
I'll take your word for it. You seem to know the mathematics well. :)


Top
Post new topic Reply to topic  [ 14 posts ] 

All times are UTC - 5 hours [ DST ]



* Login  



Powered by phpBB3 © phpBB Group