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Chillheimer
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« Reply #1 on: August 16, 2014, 06:56:49 PM » |
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wow! very very cool!!   what program did you use to do this? |
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--- Fractals - add some Chaos to your life and put the world in order. ---
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David Makin
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« Reply #2 on: August 16, 2014, 10:40:22 PM » |
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Nice way to get the brightness to show the error in the distance estimation  |
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tit_toinou
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« Reply #3 on: August 17, 2014, 04:25:39 AM » |
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Thanks.
@Chillheimer : I use my own Processing program. Sad thing is Processing can't handle double, it only has float..
@David Makin : I don't think theses are error artefacts.
It gets whiter where the distance does not stay constant : near the border (along spines) and far away.
But at the middle between two spines the derivative of the distance is near 0, so that's why it gets darker.
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laser blaster
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« Reply #4 on: August 18, 2014, 12:06:19 AM » |
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Very cool! Is the gradient the derivative of the DE function? And do you calculate it analytically or with finite differencing?
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tit_toinou
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« Reply #5 on: August 18, 2014, 02:27:58 AM » |
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Very cool! Is the gradient the derivative of the DE function? And do you calculate it analytically or with finite differencing?
Yes, DE gives me a matrix of distance, I then differentiate this matrix with a Sobel operator (on the X axis and Y axis separately) and take the modulus of the two numbers. Talking about gradient was maybe wrong  .. Anyway it also works with others filters and gives pretty much the same thing ! Looking at the angle (of the two numbers from the filter) is also very interesting I'll post images soon. |
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Adam Majewski
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« Reply #6 on: April 18, 2015, 06:54:19 PM » |
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"I use my own Processing program. Sad thing is Processing can't handle double, it only has float.."
Can you post the code with description ?
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DarkBeam
Global Moderator
Fractal Senior
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Fragments of the fractal -like the tip of it
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« Reply #7 on: April 18, 2015, 07:35:31 PM » |
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It looks like a great work, so sharing will be appreciated.
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No sweat, guardian of wisdom!
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tit_toinou
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« Reply #8 on: April 18, 2015, 09:49:40 PM » |
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Of course, give me a few days to clean the code from useless littles tweaks and release it on the internet. The second image was made thanks to photoshop by merging (the formulae -fusion mode- should be pretty simple to find though) two output images from the same sketch (it outputs as many images as we want). By the way I've begun to code After Effects plugins. I've ported this Mandelbrot DE generator, here are the first images :     |
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« Last Edit: April 26, 2015, 02:05:42 PM by tit_toinou »
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tit_toinou
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« Reply #9 on: April 26, 2015, 02:07:45 PM » |
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@Adam Majewski & DarkBeam : I've uploaded the code on github : https://github.com/ttoinou/MandelbrotDE. Here's an image with the angle :  I'm sure we can find nice coloring algorithms using the angle  . Please post here the fractals you've created with my sketch ! |
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Adam Majewski
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« Reply #11 on: May 13, 2017, 10:40:47 PM » |
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Hi,
I have
* ubuntu 16.04 LTS
* processing 3.3.3
* cloned your repo
After opening files and run command
there is an error :
size of the sketch can not be determined from your code.
?
Adam
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tit_toinou
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« Reply #13 on: May 20, 2017, 09:27:17 PM » |
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Hi Adam, My code is public domain. If you could add this kind of images to Wikipedia's mandelbrot article that would be great ! The images from the AE plugin are even better I think . |
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Adam Majewski
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« Reply #14 on: May 21, 2017, 08:26:28 AM » |
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Hi Adam, My code is public domain. If you could add this kind of images to Wikipedia's mandelbrot article that would be great ! The images from the AE plugin are even better I think . OK but the images with source code and good description of the algorithm are more educational (:-) |
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