JavaFX Light.Spot Effect

by Online Tutorials Library July 14, 2022

JavaFX Light.Spot Effect

This effect lighten the node by a spot light source. The spot light source is the one whose light attenuates in all the directions. The intensity of the light source depends upon the distance between the light source and the node. The class javafx.scene.effect.Light.Spot represents this effect. We just need to instantiate this class to generate the appropriate light on the node.

Properties

The properties of the class along with the setter methods are described in the following table.

Property	Description	Setter Methods
pointsAtX	This is a double type property. It represents the X coordinate of the direction vector of light	setPointsAtX(double value)
pointsAtY	This is a double type property. It represents the Y coordinate of the direction vector of light	setPointsAtY(double value)
pointsAtZ	This is a double type property. It represents the Z coordinate of the direction vector of light.	setPointsAtZ(double value)
specularExponent	This is a double type property. It represents the specularexponent. This is used to alter the focus of the light source.	setSpecularExponent(double value)

Constructors

The class contains two constructors

Light.Spot(): Creates a new instance with the default parameters.
Light.Spot(double x, double y, double z, double specularexponent, color color): Creates a new instance with the specified parameters.

Example:

  package application;  import javafx.application.Application;  import javafx.geometry.VPos;  import javafx.scene.Group;   import javafx.scene.Scene;  import javafx.scene.effect.Light;  import javafx.scene.effect.Lighting;  import javafx.scene.paint.Color;  import javafx.scene.shape.Rectangle;  import javafx.stage.Stage;   import javafx.scene.text.Font;   import javafx.scene.text.FontWeight;   import javafx.scene.text.Text;     public class LightingExample1 extends Application {   @Override  public void start(Stage stage) {    Text text = new Text();         text.setFont(Font.font(null, FontWeight.BOLD, 35));          text.setX(20);   text.setY(50);   text.setTextOrigin(VPos.TOP);  text.setText(“Welcome to Tutor Aspire”);          text.setFill(Color.RED);     Light.Spot light = new Light.Spot();  light.setPointsAtX(0);  light.setPointsAtY(0);  light.setPointsAtZ(-50);  light.setSpecularExponent(5);  Lighting lighting = new Lighting();   text.setEffect(lighting);         Group root = new Group();  root.getChildren().add(text);  Scene scene = new Scene(root, 500, 200);    stage.setTitle(“light.Spot example”);    stage.setScene(scene);  stage.show();           }   public static void main(String args[]){   launch(args);   }   }  

JavaFX Light.Spot Effect

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Properties

Constructors

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