Reflectance

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let noiseMax = 0.01;

let goal = 5;

​

let start = 0;

let z = 0;

​

let posM;

let lastM;

​

let x1=[]

let y1=[]

​

let a=0

let b=9

​

var ranges;

let seed = Math.random() * 12;

​

 // colors

let colors1 = "fef9fb-fafdff-ffffff-fcfbf4-f9f8f6".split("-").map((a) => "#" + a);

let colors2 = "8c75ff-c553d2-2dfd60-2788f5-23054f-f21252-8834f1-c4dd92-184fd3-f9fee2-2E294E-541388-F1E9DA-FFD400-D90368-e9baaa-ffa07a-164555-ffe1d0-acd9e7-4596c7-6d8370-e45240-21d3a4-3303f9-cd2220-173df6-244ca8-a00360-b31016".split("-").map((a) => "#" + a);

let color1, color2;

​

function setup() 

{

  pixelDensity(2);

  randomSeed(seed);

  createCanvas(windowWidth, windowHeight);

  background("#202020");

  ranges = 50;

  color1 = random(colors1);

  color2 = random(colors2);

​

  for (let y = 0; y < height; y++)

  {

      stroke(random(colors2));  

      line(0,y,width,y)

  }

  for(p=0;p<20;p++)

  {

    append(x1,random(width))

    append(y1,random(height))

  }

}

​

function draw() 

{

  if(b>=-52)

  {

    b=b-.15

    seed=100

    blendMode(DIFFERENCE);

    noFill();

    strokeWeight(5);

    a=a+.01 

    if(!lastM) lastM = createVector(0,0);

    else if(posM) lastM = posM;

    posM = createVector(0,0);

​

    let distance = sqrt( pow(posM.x-lastM.x, 2) + pow(posM.y - lastM.y,2)   ) / 10;

    if(distance > 5) goal = distance;

    distance = 0;

​

    if(noiseMax < goal) noiseMax *= 1.1;

    else 

    {

       goal = 5;

      noiseMax *= 0.99;

    }

    noFill();

    stroke(color2);

    drawingContext.shadowColor = random(colors1);

    drawingContext.shadowOffsetX = 1;

    drawingContext.shadowOffsetY = 1;

    drawingContext.shadowBlur = 0;

    for(p=0;p<20;p++)

    {

      strokeWeight(random(10))

      beginShape();

      for(let i = 0; i < TWO_PI; i += (PI/100)) 

      {

        xoff = map(cos(i+start),-1,1,0,noiseMax);

        yoff = map(sin(i),-1,1,0,noiseMax);

        let r = map(noise(xoff,yoff,z),p+0,5,-500,1000);

        let x = r * sin(i)/b ;

        let y = r * cos(i)/b ;

        vertex(x+x1[p],y+y1[p]);

      }  

      endShape(CLOSE);  

    }

    z += 0.01;

  }

}