Last active
May 17, 2019 17:36
-
-
Save Bleuje/002387abaa071f762f5df8db05079f3e to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| // by Etienne JACOB | |
| // uses a formula inspired by @ozachou_g (on twitter) | |
| //click on canvas to generate a new one | |
| //press key to save | |
| float x,y,z,t; | |
| float[] A = new float[12]; | |
| float[] f = new float[12]; | |
| float[] ph = new float[12]; | |
| int N; | |
| float rot0,v; | |
| int frame = 0; | |
| void initialize(){ | |
| frame = 0; | |
| for(int i=0;i<12;i++){ | |
| A[i] = random(-3.0,3.0); | |
| f[i] = random(-1.2,1.2); | |
| ph[i] = random(TWO_PI); | |
| } | |
| x = random(-1,1); | |
| y = random(-1,1); | |
| z = random(-1,1); | |
| t = 0; | |
| v = 0.0000001*pow(10,random(5)); | |
| background(235); | |
| rot0 = random(TWO_PI); | |
| N = floor(random(5,15)); | |
| } | |
| void setup() { | |
| //createCanvas(windowWidth, windowHeight); | |
| size(1000, 1000, P2D); | |
| initialize(); | |
| } | |
| void move(){ | |
| float xx = A[0]*sin(f[0]*x+ph[0]) + A[1]*cos(f[1]*y+ph[1]) + 2*A[2]*sin(f[2]*t+ph[2]) + A[3]*sin(f[3]*z+ph[3]); | |
| float yy = A[4]*cos(f[4]*x+ph[4]) + A[5]*sin(f[5]*y+ph[5]) + 2*A[6]*cos(f[6]*t+ph[6]) + A[7]*sin(f[7]*z+ph[7]); | |
| float zz = A[8]*sin(f[8]*x+ph[8]) + A[9]*cos(f[9]*y+ph[9]) + 2*A[10]*sin(f[10]*t+ph[10]) + A[11]*cos(f[11]*z+ph[11]); | |
| float tt = t + v; | |
| x = xx; | |
| y = yy; | |
| z = zz; | |
| t = tt; | |
| } | |
| void step(){ | |
| move(); | |
| float scale = 0.2; | |
| float F = 0.5; | |
| float xx = scale*sin(F*x); | |
| float yy = scale*sin(F*y); | |
| float zz = scale*sin(F*z); | |
| stroke(0,4); | |
| if(-zz+zdist>0){ | |
| PVector proj = projection(xx,yy,zz); | |
| for(int r=0;r<N;r++){ | |
| pushMatrix(); | |
| translate(width/2,height/2); | |
| rotate(TWO_PI*r/N + 0*rot0); | |
| strokeWeight(1+random(0,0.35)*proj.z); | |
| float std = 0.25; | |
| point(proj.x+std*randomGaussian(),proj.y+std*randomGaussian()); | |
| popMatrix(); | |
| } | |
| } | |
| } | |
| float zdist = 0.4; | |
| PVector projection(float xx,float yy,float zz){ | |
| float inv = 1.0/(-zz+zdist); | |
| float xxx = 300*xx*inv; | |
| float yyy = 300*yy*inv; | |
| return new PVector(xxx,yyy,inv); | |
| } | |
| void saveF(){ | |
| println("saving"); | |
| saveFrame("res"+floor(random(1000000))+".png"); | |
| //stop(); | |
| } | |
| void keyPressed() { | |
| saveF(); | |
| } | |
| void mousePressed(){ | |
| initialize(); | |
| } | |
| int numFrames = 50; | |
| int K = 8500; | |
| void draw() { | |
| frame++; | |
| for(int k=0;k<K;k++){ | |
| step(); | |
| } | |
| println(frame,'/',numFrames); | |
| if(frame==numFrames){ | |
| saveF(); | |
| } | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment