I have a function say like so..


void update() {
 x = mouseX;
 y = mouseY;
 ellipse(x, y, 10, 10);
}

How do I incorporate perlin noise in it so that the ellipse start "swaying" from the starting point of (mouseX, mouseY)?

I tried the following but instead of starting at (mouseX, mouseY) it starts at another point. I know why, I just don't know how to do what I am wanting to do.

float inc = 0;
void update() {
 x = noise(inc) * mouseX;
 y = noise(inc+1) * mouseY;
 ellipse(x, y, 10, 10);
 inc += 0.01;
}