This example is for Processing 3+. If you have a previous version, use the examples included with your software. If you see any errors or have suggestions, please let us know.

Bezier.

The first two parameters for the bezier() function specify the first point in the curve and the last two parameters specify the last point. The middle parameters set the control points that define the shape of the curve.


void setup() {
  size(640, 360); 
  stroke(255);
  noFill();
}

void draw() {
  background(0);
  for (int i = 0; i < 200; i += 20) {
    bezier(mouseX-(i/2.0), 40+i, 410, 20, 440, 300, 240-(i/16.0), 300+(i/8.0));
  }
}