Animation batFlight;

void setup() {
  size(256, 256, P3D);
  noStroke();
  hint(DISABLE_TEXTURE_MIPMAPS);
  PGraphicsOpenGL pogl = (PGraphicsOpenGL)g;
  pogl.textureSampling(3);
  textureMode(NORMAL);
  textureWrap(REPEAT);

  batFlight = new Animation(
    width * 0.5, height * 0.5, 0,
    width, height, 0,
    0.3, 0.666, 0,
    5, "data/batFlight/");
}

void draw() {
  background(0xff007fff);
  batFlight.draw();
  batFlight.position.sub(0, 0.1, 0.1);
  batFlight.angle.y = map(mouseX, 0, width, 0, TWO_PI);
  batFlight.angle.z = map(mouseY, 0, height, 0, TWO_PI);
}

/* ... */