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Welcome to Fractal Forums > Fractal Software > Fractal Programs > Windows Fractal Software > Kalles Fraktaler > Strange Blurriness
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Author Topic: Strange Blurriness  (Read 486 times)
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Chillheimer
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« on: October 10, 2014, 02:58:06 PM »
hi kalle!

please take a look at the attached images and the kfr file.
do you have any idea where the blurriness comes from?
there seems to be something wrong - when zooming deeper you can find no more details, just blur..

it happens reproducably when you open the kfr and change the image size to e.g. 2048
happens in 2.7 and 2.63

I'm about to do some parallel-zooms, where just one decision ist different in the beginning to explore what consequences that one decision has when zooming in deeper.
 
In the first picture you see the different locations
the second shows the zoom into area "1"
the third shows the zoom into area "2"

* 0_decision_1.jpg (44.07 KB, 2048x1152 - viewed 146 times.)

* strange1.jpg (43.07 KB, 1024x576 - viewed 136 times.)

* strange2.jpg (35.91 KB, 1024x576 - viewed 145 times.)
* parallel.zip (0.36 KB - downloaded 50 times.)
« Last Edit: October 10, 2014, 03:01:06 PM by Chillheimer » Logged
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Kalles Fraktaler
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« Reply #1 on: October 10, 2014, 03:11:44 PM »
I think it may be a precision issue.
Mandelbrot fractals fail to be rendered at about e13 when only double precision is used, but it often get distorted earlier, depending on the location, e11-e12.
Kalles Fraktaler uses reference point <0,0i> until e10, so the effect is that only double precision is used up to that zoom level.
But with the very large image size you are using, it might be that the precision issue appears already at e7, because it is still the perturbation formula that is used, so it is not the plain z=z^2+c
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Chillheimer
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Just another fractal being floating by..


chilli.chillheimer chillheimer
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« Reply #2 on: October 10, 2014, 08:37:45 PM »
didn't understand a lot of what you said.. wink
but checking "special/no approximation" worked to give a clear image.. smiley
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--- Fractals - add some Chaos to your life and put the world in order. ---
Kalles Fraktaler
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kallesfraktaler
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« Reply #3 on: October 10, 2014, 09:13:27 PM »
Quote from: Chillheimer on October 10, 2014, 08:37:45 PM
didn't understand a lot of what you said.. wink
but checking "special/no approximation" worked to give a clear image.. smiley
Thanks. My assumption was wrong but now I know how to solve it smiley
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Want to create DEEP Mandelbrot fractals 100 times faster than the commercial programs, for FREE? One hour or one minute? Three months or one day? Try Kalles Fraktaler http://www.chillheimer.de/kallesfraktaler
http://www.facebook.com/kallesfraktaler
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