Processing transition

int l, n; float t;

ArrayList points;

public void setup() { size(800, 800, P3D); background(255);

noStroke();

l = 6; //Spacing between points
n = 51; //Number of points

}

public void draw() { t = millis()/500;

background(200);

camera(width/2, height-100, 200, width/2, height/2, 0, 0, 1, 0);
lights();

points = new ArrayList();

translate(width/2, height/2, 0);
rotateX(((float)mouseY/(float)height));
rotateZ(TWO_PI-(((float)mouseX/(float)width)*TWO_PI+PI));

for (int i = 0; i < n; i++) {
    for (int j = 0; j < n; j++) {
        int x2 = (l*i+l/2-l*n/2);
        int y2 = (l*j+l/2-l*n/2);

        float distance = dist(0, 0, x2, y2);
        float z = exp(-distance/50)*sin(((distance)/10)-t)*25;

        points.add(new PVector(x2, y2, z));
    }
}

noFill();
stroke(100);

for (int i = 0; i < n-1; i++) {
    beginShape(QUAD_STRIP);
    PVector v;
    for (int j = 0; j < n-1; j++) {
        v = points.get(j+n*i);
        stroke(127+v.z*10, 127+v.z*5, 127);
        vertex(v.x, v.y, v.z);
        v = points.get(j+n*(i+1));
        vertex(v.x, v.y, v.z);
    }
    endShape();
}

fill(255, 0, 0);
noStroke();

}