Right Blue Cloth.

glassを表現したかったけど、布っぽいな〜〜。

https://such-funiki.com/processing-cloth

void setup(){
  smooth();
  pixelDensity(2);
  size(800, 800);
  colorMode(HSB,360,100,100,100);
}

void draw(){
  background(0,0,100);
  glass();
}

void glass(){
  
  float j=1;
  float leftx, lefty, rightx, righty;
  float radian=0;
  
  for(float i=0; i<400; i+=0.1){
    stroke(200, 70, 95, j*noise(1));
    radian=radians(i);
    leftx = 20*sin(4*radian/5)+width/4;
    lefty = 20*cos(4*radian/5)+3*height/4-i;
    rightx = 20*sin(4*radian/5)+3*width/4;
    righty = 20*cos(4*radian/5)+3*height/4-i;
    beginShape();
    vertex(leftx, lefty);
    vertex(rightx, righty);
    endShape();
    j+=0.004;
  }
}

void keyPressed(){
  if(key == 's'){saveFrame("###.jpg");
  }
}