// Some light is added to the scene here.
public void addLight(SimpleUniverse su) {
BranchGroup bgLight = new BranchGroup();
BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), Double.MAX_VALUE);
// Directional light.
Color3f lightColour = new Color3f(1.0f, 1.0f, 1.0f);
Vector3f lightDir = new Vector3f(1.0f, -1.0f, -1.0f);
DirectionalLight light = new DirectionalLight(lightColour, lightDir);
light.setInfluencingBounds(bounds);
bgLight.addChild(light);
// Ambient light.
Color3f ambientLightColour = new Color3f(0.5f, 0.5f, 0.5f);
AmbientLight ambLight = new AmbientLight(ambientLightColour);
ambLight.setInfluencingBounds(bounds);
bgLight.addChild(ambLight);
su.addBranchGraph(bgLight);
}
//
// Handle checkboxes and menu choices
//
public void itemStateChanged(ItemEvent event) {
Object src = event.getSource();
if (src == light1OnOffMenu) {
light1OnOff = light1OnOffMenu.getState();
light1.setEnable(light1OnOff);
return;
}
if (src == light2OnOffMenu) {
light2OnOff = light2OnOffMenu.getState();
light2.setEnable(light2OnOff);
return;
}
if (src == light3OnOffMenu) {
light3OnOff = light3OnOffMenu.getState();
light3.setEnable(light3OnOff);
return;
}
// Handle all other checkboxes
super.itemStateChanged(event);
}
// Directional light rotating around the scene and some ambient light.
public void addLight(SimpleUniverse su) {
BranchGroup bgLight = new BranchGroup();
BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), Double.MAX_VALUE);
// Directional light (to be rotated).
Color3f lightColour = new Color3f(1.0f, 1.0f, 1.0f);
Vector3f lightDir = new Vector3f(0.0f, 0.0f, -1.0f);
DirectionalLight light = new DirectionalLight(lightColour, lightDir);
light.setInfluencingBounds(bounds);
// The transformation group for the directional light and its rotation.
TransformGroup tfmLight = new TransformGroup();
tfmLight.addChild(light);
// The Alpha for the rotation.
Alpha alphaLight = new Alpha(-1, 4000);
// The rotation
RotationInterpolator rot =
new RotationInterpolator(
alphaLight, tfmLight, new Transform3D(), 0.0f, (float) Math.PI * 2);
rot.setSchedulingBounds(bounds);
tfmLight.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
tfmLight.addChild(rot);
bgLight.addChild(tfmLight);
// Ambient light.
Color3f ambientLightColour = new Color3f(0.5f, 0.5f, 0.5f);
AmbientLight ambLight = new AmbientLight(ambientLightColour);
ambLight.setInfluencingBounds(bounds);
bgLight.addChild(ambLight);
su.addBranchGraph(bgLight);
}
//
// Build scene
//
public Group buildScene() {
// Turn off the example headlight
setHeadlightEnable(false);
// Build the scene group
Group scene = new Group();
// Build foreground geometry into two groups. We'll
// create three directional lights below, one each with
// scope to cover the first geometry group only, the
// second geometry group only, or both geometry groups.
content1 =
new SphereGroup(
0.25f, // radius of spheres
1.5f, // x spacing
0.75f, // y spacing
3, // number of spheres in X
5, // number of spheres in Y
null); // appearance
scene.addChild(content1);
content2 =
new SphereGroup(
0.25f, // radius of spheres
1.5f, // x spacing
0.75f, // y spacing
2, // number of spheres in X
5, // number of spheres in Y
null); // appearance
scene.addChild(content2);
// BEGIN EXAMPLE TOPIC
// Create influencing bounds
BoundingSphere worldBounds =
new BoundingSphere(
new Point3d(0.0, 0.0, 0.0), // Center
1000.0); // Extent
// Add three directional lights whose scopes are set
// to cover one, the other, or both of the shape groups
// above. Also set the lights' color and aim direction.
// Light #1 with content1 scope
light1 = new DirectionalLight();
light1.setEnable(light1OnOff);
light1.setColor(Red);
light1.setDirection(new Vector3f(1.0f, 0.0f, -1.0f));
light1.setInfluencingBounds(worldBounds);
light1.addScope(content1);
light1.setCapability(Light.ALLOW_STATE_WRITE);
scene.addChild(light1);
// Light #2 with content2 scope
light2 = new DirectionalLight();
light2.setEnable(light2OnOff);
light2.setColor(Blue);
light2.setDirection(new Vector3f(1.0f, 0.0f, -1.0f));
light2.setInfluencingBounds(worldBounds);
light2.addScope(content2);
light2.setCapability(Light.ALLOW_STATE_WRITE);
scene.addChild(light2);
// Light #3 with universal scope (the default)
light3 = new DirectionalLight();
light3.setEnable(light3OnOff);
light3.setColor(White);
light3.setDirection(new Vector3f(1.0f, 0.0f, -1.0f));
light3.setInfluencingBounds(worldBounds);
light3.setCapability(Light.ALLOW_STATE_WRITE);
scene.addChild(light3);
// Add an ambient light to dimly illuminate the rest of
// the shapes in the scene to help illustrate that the
// directional lights are being scoped... otherwise it looks
// like we're just removing shapes from the scene
AmbientLight ambient = new AmbientLight();
ambient.setEnable(true);
ambient.setColor(White);
ambient.setInfluencingBounds(worldBounds);
scene.addChild(ambient);
// END EXAMPLE TOPIC
return scene;
}
public DirectionalLight getLight() {
if (light == null) {
light = new DirectionalLight(visible, color, direction);
BoundingSphere bounds = new BoundingSphere(location, Double.POSITIVE_INFINITY);
light.setCapability(DirectionalLight.ALLOW_DIRECTION_READ);
light.setCapability(DirectionalLight.ALLOW_DIRECTION_WRITE);
light.setCapability(Light.ALLOW_COLOR_READ);
light.setCapability(Light.ALLOW_COLOR_WRITE);
light.setCapability(Light.ALLOW_INFLUENCING_BOUNDS_READ);
light.setCapability(Light.ALLOW_INFLUENCING_BOUNDS_WRITE);
light.setCapability(Light.ALLOW_SCOPE_READ);
light.setCapability(Light.ALLOW_SCOPE_WRITE);
light.setCapability(Light.ALLOW_STATE_READ);
light.setCapability(Light.ALLOW_STATE_WRITE);
light.setInfluencingBounds(bounds);
}
return light;
}
