.

function setup() {

  createCanvas(windowWidth, windowHeight, WEBGL)

}

​

function draw() {

  background(color(51, 51, 51))//color(255, 255, 255))

  rotateY(frameCount* -0.010)//(millis() / 1000)//frameCount* -0.025)

  orbitControl()

  //directionalLight定向光源

  let dirX = (mouseX / width - 0.5) * 2;

  let dirY = (mouseY / height - 0.5) * 2;

  directionalLight(color(220,248,255), -dirX, -dirY, -1);//directionalLight(color(255, 255, 255), 0, 0, -1)//定向灯rgb(222,199,143)

  noStroke();

  //pointLight点光源

  let locX = mouseX - width / 2;

  let locY = mouseY - height / 2;

  pointLight(color(166,50,240),locX, locY, 500)//(168, 0, 0), 0, 0, 1000)

  box(10, 2000, 10)

  translate(0, 450, 0)

  for (let i = 16; i--;) {

    push()

      translate(100, 0, 0)

      box(50, 10, 50)

      translate(350, 600, 0)

      noStroke()

      box(50, 1430, 50)

      translate(50, 0, 0)

      box(50, 1230, 50)//box(50, 1200, 50)

      translate(50, 0, 0)

      box(50, 1030, 50)

      translate(50, 0, 0)

      box(50, 830, 50)

      translate(50, 0, 0)

      box(50, 630, 50)

      translate(50, 0, 0)

    pop()

    translate(0, -40, 0)

    rotateY(PI / 5)

  }

}