Background Image

bluestar

I'm trying to make a program that decays and image. I could figure out how delete the pixels but what I have is fine. But for some reason I can't get the picture to load.

float speed = 100;
float direction = 200;
void update(){

}
float x = 0;
float y = 0;
float x2 = 0;
float y2 = 0;
int a = int(x);
int b = int(y);
int steps = 0;

void setup() {
  PImage RD = loadImage("RD.jpg");
  image(RD, 0, 0);

  size(800, 600);

  x = width / 2;
  y = height / 2;
}

void draw() {
  update();
  takeStep();
}
void takeStep() {
  smooth();
  steps = steps + 1;
  strokeWeight((200 / (abs(speed) + 50)) * 3);

  x2 = x + ((speed / 5.0) * cos(radians(direction)));
  y2 = y + ((speed / 5.0) * sin(radians(direction)));

  line(x2, y2, x, y);
  if (x2 < 0) {
    float xDiff = x2 - x;
    x2 = (x2 % width) + width; 
    x = x2 - xDiff;
  }
  else if (width < x2) {
    float xDiff = x2 - x;
    x2 = x2 % width; 
    x = x2 - xDiff;
  }
  if (y2 < 0) {
    float yDiff = y2 - y;
    y2 = (y2 % height) + height; 
    y = y2 - yDiff;
  }   
  else if (height < y2) {
    float yDiff = y2 - y;
    y2 = y2 % height; 
    y = y2 - yDiff;
  }

  x = x2+1;
  y = y2;
}

hamoid

Hi! You should first set the size() and only then load the image :)