Space Fan

let f=0;

let W=400;

let h=100;

setup=_=>{

  createCanvas(W,W,WEBGL);

  noStroke();

}

draw=_=> {

  background(0);

  rotateX(-PI/2);

  for(x=-PI;x<PI;x+=PI/64){ // Change 64 to 32 to speed up the render

    for(z=-PI;z<PI;z+=PI/64){ // Change 64 to 32 to speed up the render

      push();

      rotateY(f+x+z);

      let Y=tan(x+z-f/1.3)*h;

      translate(sin(x)*h,Y,cos(z)*h);

      if(Y>0) sphere(Y/200);

      pop();

    }

  }

  sphere(30);

  f+=PI/512;

}

// Minimized

// f=0,w=100,draw=a=>{for(f||createCanvas(W=400,W,WEBGL),background(0),rotateX(-PI/2),x=-PI;x<PI;x+=PI/64)for(z=-PI;z<PI;z+=PI/64)push(),rotateY(f+x+z),translate(sin(x)*w,Y=tan(x+z-f/1.3)*w,cos(z)*w),Y>0&&sphere(Y/200,W),pop();sphere(30,W),f+=PI/512};//#つぶやきProcessing