Eclipse 蝕

/*

Eclipse

Refresh to get a new output :)

#WCCChallenge topic "Eclipse 🌑" 2024.4.14 by TKt | 陳建中 Tân Kiàn-tiong（rainsr7235）

*/

​

let y

function setup() {

  describe(`A grayscale generative art image featuring a total solar eclipse in the sky,

  with a desert-like texture below and glowing particle bands generated based on Perlin Noise graphics.`)

  createCanvas(500, 700);

  background(30);

  // pixelDensity(10)

  y = random(300,400)

  let sunX = random(100,width-100)

  let sunY = random(50,150)

  let sunD = random(30,50)

  push()

  translate(sunX,sunY)

  for(let i=0;i<4000;i++){

    let r = sunD+random(random())*15

    let theta = random(2*PI)

    let x = cos(theta)*r

    let y = sin(theta)*r

    fill(255,30)

    noStroke()

    circle(x,y,random(2))

  }

  pop()

}

​

function draw() {

  for(let x=0;x<width;x++){

    let n1 = noise(x*0.002, y*0.008)

    let n2 = noise(x*0.01+1000000, y*0.01+1000000)

    let n3 = noise(x*0.002+10000, y*0.01+10000)

    let h = 10 + n1 * 150

    noStroke()

    fill(n1*255 + random(-5,5))

    rect(x,y,3,-h)

    if(random()<0.01 && n2<0.4){

      fill(0,5)

      rect(x,y-h,randomGaussian(5,3),-randomGaussian(300,10))

    }

    if(n3>0.5 && n3<0.51){

      // fill("red")

      // circle(x,y-h,2)

      for(let j=0;j<100;j++){

        let dotX = x

        let dotY = y-h - (random(random())*200)

        fill(255,5)

        circle(dotX,dotY,random(2))

      }

    }

  }

  y++

  if(y>height+200){

    noLoop()

  }

}