Background Image

/**
 * Background Image. 
 * 
 * This example presents the fastest way to load a background image
 * into Processing. To load an image as the background, it must be
 * the same width and height as the program.
 */

PImage* bg;
int y = 0;

void setup() {
    size(640, 360);

    // The background image must be the same size as the parameters
    // into the size() method. In this program, the size of the image
    // is 640 x 360 pixels.
    bg = loadImage("moonwalk.jpg");
}

void draw() {
    background(bg);   // needs pointer overload

    stroke(226, 204, 0);
    line(0, y, width, y);

    y++;
    if (y > height) {
        y = 0;
    }
}