Ammar Hassonjee – Project 09 – Computational Portrait

Ammar’s Portrait

/* Ammar Hassonjee
    ahassonj@andrew.cmu.edu
    Section C
    Project 09
  */

var underlyingImage;
var theColorAtLocationXY;
// Variable for adjusting the frame rate
var frames = 100;

function preload() {
    var myImageURL = "https://i.imgur.com/o4lm5zF.jpg";
    underlyingImage = loadImage(myImageURL);
}

function setup() {
    createCanvas(480, 480);
    background(0);
    underlyingImage.loadPixels();
}

function draw() {
    // Changing the frame rate each time draw is called
    frameRate(frames);
    // Initial variables declared to return pixel from image at random location
    var px = random(width);
    var py = random(height);
    var ix = constrain(floor(px), 0, width-1);
    var iy = constrain(floor(py), 0, height-1);
    // Getting the color from the specific pixel
    theColorAtLocationXY = underlyingImage.get(ix, iy);

    // Varying the triangle size and rotation for each frame based on
    //         the pixel distance from the mouse
    var triangleSize = map(dist(px, py, mouseX, mouseY), 0, 480 * sqrt(2), 1, 10);
    var triangleRotate = map(dist(px, py, mouseX, mouseY), 0, 480 * sqrt(2), 0, 180);
    noStroke();
    fill(theColorAtLocationXY);
    // rotating the triangle at each pixel
    push();
    translate(px, py);
    rotate(degrees(triangleRotate));
    triangle(0, 0, triangleSize * 2, 0, triangleSize, triangleSize);
}

function keyPressed() {
    // reducing the frame count each time a key is pressed
    frames = constrain(int(frames * .5), 1, 10);
}

function mousePressed() {
    // increasing the frame rate each time the mouse is pressed
    frames = constrain(int(frames * 2), 1, 1000);
}

I was inspired to make an interactive self portrait that is based from my favorite shape, the triangle! By using the mouse to generate values, my program allows users to make my portrait more realistic or more distorted depending on where they keep the mouse. I think the combinations of rotation and triangle size create really interesting renditions of my selfie.