float t=0; float r=10; float x1; float y1; float x2; float y2; float x3; float y3; float x4; float y4; float x; float y; float g; float st; void setup(){ background(20); frameRate(90); size(800,400); stroke(random(50,200),random(30,100)); strokeWeight(0.01); g=0; t=0; } void draw(){ //background(20); for (int i=0 ; i<100;i++ ) { x4=(1-t)*(1-t)*x1+g*t*(1-t)*x2+t*t*x3; y4=(1-t)*(1-t)*y1+g*t*(1-t)*y2+t*t*y3; x = x4 ; y = y4 ; //speed t+=0.001; float linewidth=5-t*3; strokeWeight(linewidth); smooth(); stroke(st,100-t*50); line(x,y,x4,y4); //println(linewidth); if(x>width || y<0 ||x<0 || y>height || linewidth<1){ x1=0; y1=height/2; x2=(x1+x3)/2; y2=(y1+y3)/2; x3=random(width); y3=random(height); g=random(-10,10); t=0; st=random(50,200); strokeWeight(0); } } //fadeToWhite(); } void fadeToWhite(){ rectMode(CORNER); fill(20,0); noStroke(); rect(0,0,width,height); }