import javafx.application.Application;
import javafx.application.Launcher;
import javafx.scene.Group;
import javafx.scene.PerspectiveCamera;
import javafx.scene.Scene;
import javafx.scene.effect.DropShadow;
import javafx.scene.paint.Color;
import javafx.scene.shape.Rectangle;
import javafx.scene.transform.Rotate;
import javafx.scene.transform.Translate;
import javafx.stage.Stage;

/**
 * @author cyang
 */

public class EffectOnGroup extends Application {

    @Override public void start(Stage stage) {
        stage.setTitle("Effect On Group with Z-Buffer On");
        Scene scene = new Scene(new Group(), 500, 500);
        scene.setFill(Color.GRAY);
        scene.setCamera(new PerspectiveCamera());

        System.out.println("Draw order (back to front): RED, GREEN, BLUE");        
	System.out.println("Z order (back to front): BLUE, RED, GREEN");
        DropShadow dropshadow = new DropShadow();
        dropshadow.setOffsetY(1.0);

        Rectangle red = new Rectangle(10, 10, 100, 100);
        red.setFill(Color.RED);
        red.setTranslateZ(2);

        Rectangle green = new Rectangle(50, 20, 100, 100);
        green.setFill(Color.GREEN);
        green.setTranslateZ(1);

        Rectangle blue = new Rectangle(20, 50, 100, 100);
        blue.setFill(Color.BLUE);
        blue.setTranslateZ(3);
	Group group = new Group();
	group.getChildren().addAll(red, green, blue);
        group.setEffect(dropshadow);

        // To reproduce the bug comment out the 2 lines below:
	// group.setRotationAxis(Rotate.Y_AXIS);
        // group.setRotate(-20);

        ((Group)scene.getRoot()).getChildren().addAll(group);

        stage.setScene(scene);
        stage.setVisible(true);

    }

    public static void main(String[] args) {
        Launcher.launch(EffectOnGroup.class, args);
    }
    static {
        // TODO: temp until Z-buffer API is available
	System.setProperty("prism.depthtest", "true");
    }

}