Going In Circles.

Many interesting circles and swirls.
Many interesting circles and swirls that was created with creative coding..

Description of this work.

A generative art made with Processing on Java programming language.

It's a revised work of 'Beyond the Universe'.
When I changed the calculation formula to this.

 xCurr += plotDiv * cos((atan2(yPrev * vfldFactorX, yPrev) + TWO_PI * yPrev) * plotMult);
 yCurr += plotDiv * sin((atan2(xPrev * vfldFactorY, xPrev) + TWO_PI * xPrev) * plotMult);


It drew many beautiful circles and I got an interest in this.
I tuned shape and color, it became a good piece of work.

This code does not display any images on the screen but generates image files in frames directory.


Processing code example (Java)

Please feel free to use it, if you like it.
To see other works based on my code is my pleasure. And my honor.



/**
 * Going In Circles.
 * draw many circles with vector field using no noise.
 * 
 * @author @deconbatch
 * @version 0.1
 * Processing 3.2.1
 * created 2019.11.
 */

void setup() {

  size(980, 980);
  colorMode(HSB, 360, 100, 100, 100);
  rectMode(CENTER);
  smooth();
  noStroke();
  noLoop();

}

void draw() {

  int   frmMax   = 3; // draw 3 images
  int   plotMax  = 1000;
  float plotDiv  = 0.001;
  float plotMult = random(0.0, 5.0);
  float initDiv  = 0.02;
  float initHue  = random(360.0);
  float baseBri  = 5.0;
  translate(width * 0.5, height * 0.5);

  for (int frmCnt = 1; frmCnt <= frmMax; frmCnt++) {

    // for different looks
    plotMult %= 5.0;
    plotMult += 1.5;
    initHue += 90.0;

    float frmRatio    = map(frmCnt, 1, frmMax, 0.0, 1.0);
    float vfldFactorX = random(0.5, 2.0);
    float vfldFactorY = random(0.5, 2.0);
    float baseSiz     = random(1.0, 1.5);
    float baseHue     = initHue;

    background(0.0, 0.0, 90.0, 100);
    blendMode(DIFFERENCE);

    pushMatrix();
    rotate(random(TWO_PI));
    for (float xInit = -0.5; xInit <= 0.5; xInit += initDiv) {
      for (float yInit = -0.5; yInit <= 0.5; yInit += initDiv) {
        float xCurr = xInit;
        float yCurr = yInit;
        for (int plotCnt = 0; plotCnt < plotMax; plotCnt++) {
          float plotRatio = map(plotCnt, 0, plotMax, 0.0, 1.0);
          float eHue      = baseHue + plotRatio * 60.0 + floor(((xInit + yInit) * 10000.0) % 4.0) * 10.0;
          float eSat      = map(sin(PI * plotRatio), 0.0, 1.0, 40.0, 80.0);
          float eBri      = baseBri * (1.0 + sin(PI * plotRatio));
          float eSiz      = baseSiz * (1.0 + sin(PI * plotRatio));

          float xPrev = xCurr;
          float yPrev = yCurr;
          xCurr += plotDiv * cos((atan2(yPrev * vfldFactorX, yPrev) + TWO_PI * yPrev) * plotMult);
          yCurr += plotDiv * sin((atan2(xPrev * vfldFactorY, xPrev) + TWO_PI * xPrev) * plotMult);

          fill(eHue % 360.0, eSat, eBri, 100.0);
          ellipse(xCurr * width, yCurr * height, eSiz, eSiz);
        }
      }
    }
    popMatrix();

    casing();
    saveFrame("frames/" + String.format("%04d", frmCnt) + ".png");
  }
  exit();
}

/**
 * casing : draw fancy casing
 */
private void casing() {
  blendMode(BLEND);
  fill(0.0, 0.0, 0.0, 0.0);
  strokeWeight(54.0);
  stroke(0.0, 0.0, 0.0, 100.0);
  rect(0.0, 0.0, width, height);
  strokeWeight(50.0);
  stroke(0.0, 0.0, 100.0, 100.0);
  rect(0.0, 0.0, width, height);
  noStroke();
  noFill();
}


/*
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 <http://www.gnu.org/licenses/>
*/






Many interesting and beautiful circles and swirls.

Many interesting and beautiful circles and swirls.

Many interesting and beautiful circles and swirls.



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