//
// Build scene
//
public Group buildScene() {
// Get the current color
Color3f color = (Color3f) colors[currentColor].value;
float front = ((Float) fronts[currentFront].value).floatValue();
float back = ((Float) backs[currentBack].value).floatValue();
// Turn off the example headlight
setHeadlightEnable(false);
// Default to walk navigation
setNavigationType(Walk);
// Create the scene group
Group scene = new Group();
// BEGIN EXAMPLE TOPIC
// Create influencing bounds
BoundingSphere worldBounds =
new BoundingSphere(
new Point3d(0.0, 0.0, 0.0), // Center
1000.0); // Extent
// Set the fog color, front & back distances, and
// its influencing bounds
fog = new LinearFog();
fog.setColor(color);
fog.setFrontDistance(front);
fog.setBackDistance(back);
fog.setCapability(Fog.ALLOW_COLOR_WRITE);
fog.setCapability(LinearFog.ALLOW_DISTANCE_WRITE);
fog.setInfluencingBounds(worldBounds);
scene.addChild(fog);
// END EXAMPLE TOPIC
// Set the background color and its application bounds
// Usually, the background color should match the fog color
// or the results look odd.
background = new Background();
background.setColor(color);
background.setApplicationBounds(worldBounds);
background.setCapability(Background.ALLOW_COLOR_WRITE);
scene.addChild(background);
// Build foreground geometry
scene.addChild(new ColumnScene(this));
return scene;
}
/** Setup the basic scene which consists of a quad and a viewpoint */
private void setupSceneGraph() {
// View group
Viewpoint vp = new Viewpoint();
Vector3f trans = new Vector3f(0, 0, 1);
Matrix4f mat = new Matrix4f();
mat.setIdentity();
mat.setTranslation(trans);
TransformGroup tx = new TransformGroup();
tx.addChild(vp);
tx.setTransform(mat);
Group scene_root = new Group();
scene_root.addChild(tx);
// Flat panel that has the viewable object as the demo
float[] coord = {0, 0, -1, 0.25f, 0, -1, 0, 0.25f, -1};
float[] normal = {0, 0, 1, 0, 0, 1, 0, 0, 1};
TriangleArray geom = new TriangleArray();
geom.setValidVertexCount(3);
geom.setVertices(TriangleArray.COORDINATE_3, coord);
geom.setNormals(normal);
Material material = new Material();
material.setDiffuseColor(new float[] {0, 0, 1});
material.setEmissiveColor(new float[] {0, 0, 1});
material.setSpecularColor(new float[] {1, 1, 1});
material.setTransparency(0.5f);
Appearance app = new Appearance();
app.setMaterial(material);
Shape3D shape = new Shape3D();
shape.setGeometry(geom);
shape.setAppearance(app);
TransformGroup tg = new TransformGroup();
Matrix4f transform = new Matrix4f();
transform.setIdentity();
transform.setTranslation(new Vector3f(0.15f, 0, -1));
tg.setTransform(transform);
Shape3D backShape = new Shape3D();
Material material2 = new Material();
material2.setDiffuseColor(new float[] {1, 0, 0});
material2.setEmissiveColor(new float[] {1, 0, 0});
material2.setSpecularColor(new float[] {1, 1, 1});
Appearance app2 = new Appearance();
app2.setMaterial(material2);
backShape.setGeometry(geom);
backShape.setAppearance(app2);
tg.addChild(backShape);
scene_root.addChild(tg);
scene_root.addChild(shape);
SimpleScene scene = new SimpleScene();
scene.setRenderedGeometry(scene_root);
scene.setActiveView(vp);
// Then the basic layer and viewport at the top:
SimpleViewport view = new SimpleViewport();
view.setDimensions(0, 0, 500, 500);
view.setScene(scene);
SimpleLayer layer = new SimpleLayer();
layer.setViewport(view);
Layer[] layers = {layer};
displayManager.setLayers(layers, 1);
}
//
// 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;
}
