​

//SoundFile file;

var fft;

var mic;

var bands = 512; // resolution of the FFT

var spectrum;

var terrain = [];

​

var lines = 60;

var scl = 8;

var w = 1024;

var h = 60;

var counter = 0;

var flying = 0;

​

var r = 255;

var g = 0;

var b = 0;

var angle = 0;

​

var rotZ;

var ext = 10;

​

function setup() {

  createCanvas(windowWidth, windowHeight, WEBGL);

  //frameRate(15);

  //file = new SoundFile(this, "03badnews.mp3");

​

  // file = new SoundFile(this, "popcorn.mp3");

  //terrain = new float [lines][bands];

  // create fft object

  fft = new p5.FFT(0.85, bands);

  // create audion in

  mic = new p5.AudioIn();

​

  //in = new AudioIn(this, 0);

​

  // start the Audio Input

  // file.play();

​

  // patch the AudioIn

  // fft.input(file);

  //// patch the AudioIn

  fft.setInput(mic);

​

  //// start the Audio Input

  mic.start();

​

​

​

  for (var y = 0; y < lines; y++) {

    terrain[y] = [];

    for (var x = 0; x < bands; x++) {

      terrain[y][x] = 0;

    }

  }

​

}

​

function draw() {

  background(255,255,0);

//  fill(255,0,0);

  rotZ = mouseX;

​

  flying -= 10;

  var yoff = flying;

​

  var c = color(255, 0, 255);

  stroke(c);

 // noFill();

  translate(-width / 2, 30,0);

 rotateX(radians(-60));

​

  translate(0, 0);

 // rotateX(radians(rotZ));

  //-translate(0, -600);

  var spectrum = fft.analyze();

​

  // update the terrain

  //terrain[counter] = spectrum;

​

​

​

  for (var y = 0; y < terrain.length; y++) {

    beginShape();

    // for (var x = ext; x > 0; x--) {

    //   if (y > 0) {

    //     vertex(-x * scl, y * scl, 0);

    //     if (y < lines-1) {

    //       vertex(-x * scl, (y + 1) * scl, 0);

    //     }

    //   }

    // }

    //float xoff =0;

    for (var x = 0; x < spectrum.length; x++) {

      //   terrain[x][y] = map(spectrum[x], 0, 10, -100, 8000);

      //   terrain [x][y]= map(noise(xoff, yoff), 0, 1, -scl*5, scl*5) ;

      //  xoff +=.1;

      if (y < lines - 1) {

        if (y > 0) {

          vertex(x * scl, y * scl, terrain[y - 1][x]);

        }

        if (x < bands - 1) {

          vertex(x * scl, (y + 1) * scl, terrain[y][x]);

        }

        if (x < bands - 2) {

          vertex((x + 1) * scl, (y + 1) * scl, terrain[y][x + 1]);

        }

        if (y > 0) {

          vertex(x * scl, y * scl, terrain[y - 1][x]);

        }

​

      } else {}

    }

    endShape();

    //  yoff+=.1;

  }

​

​

​

  for (let y = lines - 1; y >= 0; y--) {

    //for (var i = 0; i < bands; i++) {

    terrain[0] = spectrum;

    if (y > 0) {

      if (y < lines) {

        terrain[y] = terrain[y - 1];

      }

    }

    // }

  }

​

  //for (int i = 0; i < terrain.length; i++) {

  //  for (int j = 0; j < bands; j++) {

  //    terrain[i][j]=0; // reset lines at the end of scroll

  //  }

  //}

}