JavaFX | Light.Spot Class

Light.Spot class is a part of JavaFX. Light.Spot class is used to create a spot light with configurable values of direction vector of light, focus and Color in 3D space. Light.Spot class inherits Light.Point class.

Constructors of the class:

1. Spot(): Creates a spot light with default values
2. Spot(double x, double y, double z, double s, Color c): Creates a spot light with specified values of x, y, z, specularExponent and color of light

Commonly Used Methods:

Below programs illustrate the use of Light.Spot class:

1. Java Program to create a Spot light and add it to a rectangle: In this program we will create a Rectangle named rectangle with specified height and width. We will also create a Light.Spot object named light. We will set the x, y, z values using setX(), setY() and setZ() function. Now create a lighting object and add the light object to lighting using setLight() function. We will set the Lighting effect to the Rectangle and add it to the scene and add the scene to the stage and call the show function to display the results.

   
   

   
   
   

   // Java Program to create a Spot light // and add it to a rectangle import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.shape.Rectangle; import javafx.scene.control.*; import javafx.stage.Stage; import javafx.scene.Group; import javafx.scene.effect.Light.*; import javafx.scene.effect.*; import javafx.scene.paint.Color;    public class Spot_1 extends Application {        // launch the application     public void start(Stage stage)     {            // set title for the stage         stage.setTitle("creating Light.Spot");            // create Spot Light object         Light.Spot light = new Light.Spot();            // set coordinates         light.setX(100);         light.setY(100);         light.setZ(100);            // create a lighting         Lighting lighting = new Lighting();            // set Light of lighting         lighting.setLight(light);            // create a rectangle         Rectangle rect = new Rectangle(250, 250);            // set fill         rect.setFill(Color.WHITE);            // set effect         rect.setEffect(lighting);            // create a Group         Group group = new Group(rect);            // create a scene         Scene scene = new Scene(group, 500, 300);            // set the scene         stage.setScene(scene);            stage.show();     }        // Main Method     public static void main(String args[])     {            // launch the application         launch(args);     } }

   Output:

   

2. Java Program to create a Spotlight and add it to a rectangle and set the coordinates of the direction vector of light and color of light: In this program we will create a Rectangle named rectangle with specified height and width. We will also create a Light.Spot object named light. We will set the x, y, z values using setX(), setY() and setZ() function. The coordinate of the direction vector of light is set using setPointsAtX(), setPointsAtY() and setPointsAtX(), and specify the value of color using setColor() function Now create a lighting object and add the light object to lighting using setLight() function. We will set the Lighting effect to the Rectangle and add it to the scene and add the scene to the stage and call the show function to display the results.

   
   

   
   
   

   // Java Program to create a Spot light // and add it to a rectangle and set the // coordinates of direction vector of  // light and color of light import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.shape.Rectangle; import javafx.scene.control.*; import javafx.stage.Stage; import javafx.scene.Group; import javafx.scene.effect.Light.*; import javafx.scene.effect.*; import javafx.scene.paint.Color;    public class Spot_2 extends Application {        // launch the application     public void start(Stage stage)     {            // set title for the stage         stage.setTitle("creating Light.Spot");            // create Spot Light object         Light.Spot light = new Light.Spot();            // set coordinate of direction         // the vector of this light         light.setPointsAtX(0);         light.setPointsAtY(0);         light.setPointsAtZ(-60);            // set specular exponent         light.setSpecularExponent(2);            // set color of light         light.setColor(Color.RED);            // set coordinates         light.setX(100);         light.setY(100);         light.setZ(200);            // create a lighting         Lighting lighting = new Lighting();            // set Light of lighting         lighting.setLight(light);            // create a rectangle         Rectangle rect = new Rectangle(250, 250);            // set fill         rect.setFill(Color.WHITE);            // set effect         rect.setEffect(lighting);            // create a Group         Group group = new Group(rect);            // create a scene         Scene scene = new Scene(group, 500, 300);            // set the scene         stage.setScene(scene);            stage.show();     }        // Main Method     public static void main(String args[])     {            // launch the application         launch(args);     } }

   Output:

   

Note: The above programs might not run in an online IDE. Please use an offline compiler.

Reference: https://docs.oracle.com/javase/8/javafx/api/javafx/scene/effect/Light.Spot.html