How to use

setEnable

method

in

javax.media.j3d.DirectionalLight

public void setVisible(final boolean _visible) {
 l_.setEnable(_visible);
 visible_ = _visible;
}

/**
 * Adds a directional light of color col which shines in the direction vector (x, y, z)
 */
public static Light directionalLight (double x, double y, double z, Color col) {
  DirectionalLight light = new DirectionalLight();
  light.setColor(new Color3f(col));
  light.setInfluencingBounds(INFINITE_BOUNDS);
  light.setCapability(DirectionalLight.ALLOW_STATE_WRITE);
  light.setCapability(DirectionalLight.ALLOW_COLOR_WRITE);
  light.setEnable(true);
  BranchGroup bg = createBranchGroup();
  TransformGroup tg = createTransformGroup();
  tg.addChild(light);
  bg.addChild(tg);
  lightGroup.addChild(bg);
  Light l = new Light(bg, tg, light);
  l.setDirection(new Vector3D(x, y, z));
  return l;
}

/**
 * Adds a directional light of color col which shines in the direction vector (x, y, z)
 */
public static Light directionalLight (double x, double y, double z, Color col) {
  DirectionalLight light = new DirectionalLight();
  light.setColor(new Color3f(col));
  light.setInfluencingBounds(INFINITE_BOUNDS);
  light.setCapability(DirectionalLight.ALLOW_STATE_WRITE);
  light.setCapability(DirectionalLight.ALLOW_COLOR_WRITE);
  light.setEnable(true);
  BranchGroup bg = createBranchGroup();
  TransformGroup tg = createTransformGroup();
  tg.addChild(light);
  bg.addChild(tg);
  lightGroup.addChild(bg);
  Light l = new Light(bg, tg, light);
  l.setDirection(new Vector3D(x, y, z));
  return l;
}