Making of some creative coding : A swirl of dust.
Vertex example.
Swirl of dust example.
First idea.
When I drew a line with this recurrence formula,x += div * cos(TWO_PI * noise(sin(TWO_PI * n)) * amp); y += div * sin(TWO_PI * noise(sin(TWO_PI * n)) * amp); // div = 0.002; // amp = 50.0; // n : 0.0 to 1.0
It looks like something decoration of paper wallpaper.
— deconbatch (@deconbatch) August 18, 2019
Add Vector Field essence.
I tried to add individuality in each shape.So I use the Vector Field method to determine the shapes.
Drawing vector field | GenerateMe
https://generateme.wordpress.com/2016/04/24/drawing-vector-field/
ns = noise(sin(TWO_PI * n), x, y) x += div * cos(TWO_PI * ns * amp); y += div * sin(TWO_PI * ns * amp); // div = 0.002; // amp = 50.0; // n : 0.0 to 1.0
Got a personality!
Make it cyclic.
And I animate these shapes.— deconbatch (@deconbatch) September 1, 2019
And I wanted to make this animation cyclic.
Place them in a circle, move the right value of radian, then you can make these shape cyclic automatically with the Vector Field magic!
x[i] = r * cos(a[i] + TWO_PI * a / n); y[i] = r * sin(a[i] + TWO_PI * a / n); // i : 1 to n // r : radius // a : animate parameter 0.0 to 1.0 // n : shape number
If you draw shapes in individual colors, locations are correct but you can't see it cyclic animation.
— deconbatch (@deconbatch) September 4, 2019
If all shapes were in same color, it looks eternal cycle!
— deconbatch (@deconbatch) September 4, 2019
The Vector Field essence meets cyclic animation.
— deconbatch (@deconbatch) September 2, 2019
And more fun.
Make a circle to Archimedes' helicoid, then it looks like a eternal inlet (or outlet) port of dust.ただの円だったのを形を複雑にして、その形の変化も周期的にしてやれば永遠に動き続ける埃の出来上がり。🌬️#processing #creativecoding pic.twitter.com/UN7sJpAyN5— deconbatch (@deconbatch) September 4, 2019
Please feel free to use it, if you like it.
To see other works based on my code is my pleasure. And my honor.
/**
* A swirl of dust.
* This code does not display any images on screen but generates image files in frames directory.
* You can make an animation with these files.
*
* @author @deconbatch
* @version 0.1
* Processing 3.2.1
* created 2019.09.04
*
*/
void setup() {
size(720, 720);
colorMode(HSB, 360, 100, 100, 100);
smooth();
noStroke();
noLoop();
}
void draw() {
int frmMax = 24 * 6; // 24fps x 6s frames
int ptnCnt = 13;
float plotDiv = 0.002;
float plotMult = 2.0;
float baseHue = random(360.0);
float baseSat = 80.0;
float baseBri = 60.0;
float baseSiz = 1.0;
translate(width * 0.5, height * 0.5);
for (int frmCnt = 1; frmCnt <= frmMax; ++frmCnt) {
float frmRatio = map(frmCnt, 1, frmMax, 0.0, 1.0);
float rDiv = TWO_PI / ptnCnt;
background(baseHue, 0.0, 90.0, 100);
for (float rInit = 0.0; rInit < TWO_PI * 3.0; rInit += rDiv) {
float rRatio = map(rInit, 0.0, TWO_PI * 3.0, 0.0, 1.0);
fill(baseHue, baseSat * rRatio, baseBri * (1.0 - rRatio), 100.0);
// make it cyclic
float radius = (rInit - rDiv * frmRatio) * 0.03;
float xInit = radius * cos(rInit - rDiv * frmRatio);
float yInit = radius * sin(rInit - rDiv * frmRatio);
// The Vector Field essence
float nInit = sin(xInit * 3.0 + yInit * 3.0);
float xPoint = xInit;
float yPoint = yInit;
int plotMax = floor(1000 * radius);
for (int plotCnt = 0; plotCnt < plotMax; ++plotCnt) {
float pRatio = map(plotCnt, 0, plotMax, 0.0, 1.0);
float eSiz = baseSiz * sin(PI * pRatio);
float xPrev = xPoint;
float yPrev = yPoint;
float dInit = dist(0.0, 0.0, xPrev, yPrev);
float dNoise = customNoise(nInit, TWO_PI * pRatio) + customNoise(TWO_PI * pRatio, nInit);
xPoint += plotDiv * cos(TWO_PI * dNoise * plotMult);
yPoint += plotDiv * sin(TWO_PI * dNoise * plotMult);
ellipse(xPoint * width, yPoint * height, eSiz, eSiz);
}
}
saveFrame("frames/" + String.format("%04d", frmCnt) + ".png");
}
exit();
}
/**
* customNoise : returns -1.0 .. 1.0 almost random but interesting value
*/
float customNoise(float _x, float _y) {
return pow(sin(_x), 3) * cos(pow(_y, 2));
}
/*
Copyright (C) 2019- deconbatch
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see
*/
deconbatch
To make something is my pleasure. Having fun in endless trial-and-error. Now, I'm loving creative coding and showing some example code in my blog. Mainly creating Processing code examples.
