JavaFX Effects - Lighting(Default Source)

The lighting effect is used to simulate a light from a light source. There are different kinds of light sources which include − Point, Distant and Spot.

If we do not mention any source for lighting, it uses the default source of JavaFX.

The class named Lighting of the package javafx.scene.effect represents the lighting effect, this class contains ten properties, which are −

• bumpInput − This property is of the type Effect and it represents an optional bump map input to the lighting effect.

• contentInput − This property is of the type Effect and it represents a content input to the lighting effect.

• diffuseConstant − This property is of the type double and it represents the diffuse constant of the light.

• SpecularConstant − This property is of the type double and it represents the specular constant of the light.

• SpecularExponent − This property is of the type double and it represents the specular exponent of the light.

• SurfaceScale − This property is of the type double and it represents the surface scale factor of the light.

Example

The following program is an example demonstrating the lighting effect of JavaFX. In here we are drawing a text “Welcome to Tutorialspoint” and a circle in a scene.

To these, we are applying the lighting effect. In here, as we are not mentioning any source, JavaFX uses its default source.

Save this code in a file with the name LightingEffectExample.java.

import javafx.application.Application; 
import javafx.scene.Group; 
import javafx.scene.Scene; 
import javafx.scene.effect.Lighting; 
import javafx.scene.paint.Color; 
import javafx.scene.shape.Circle; 
import javafx.stage.Stage; 
import javafx.scene.text.Font; 
import javafx.scene.text.FontWeight; 
import javafx.scene.text.Text; 
         
public class LightingEffectExample extends Application { 
   @Override 
   public void start(Stage stage) {  
      //Creating a Text object 
      Text text = new Text();       
      
      //Setting font to the text 
      text.setFont(Font.font(null, FontWeight.BOLD, 40));       
      
      //setting the position of the text 
      text.setX(60); 
      text.setY(50); 
      
      //Setting the text to be embedded. 
      text.setText("Welcome to Tutorialspoint");       
      
      //Setting the color of the text 
      text.setFill(Color.RED);   
       
      //Drawing a Circle 
      Circle circle = new Circle();         
      
      //Setting the center of the circle
      circle.setCenterX(300.0f); 
      circle.setCenterY(160.0f); 
      
      //Setting the radius of the circle 
      circle.setRadius(100.0f); 
      
      //setting the fill color of the circle 
      circle.setFill(Color.CORNFLOWERBLUE);   
       
      //Instantiating the Lighting class  
      Lighting lighting = new Lighting(); 
  
      //Applying lighting effect to the text 
      text.setEffect(lighting);      
      
      //Applying lighting effect to the circle 
      circle.setEffect(lighting); 
         
      //Creating a Group object  
      Group root = new Group(text,circle);   
               
      //Creating a scene object 
      Scene scene = new Scene(root, 600, 300);  
      
      //Setting title to the Stage 
      stage.setTitle("Distant light effect example"); 
         
      //Adding scene to the stage 
      stage.setScene(scene); 
         
      //Displaying the contents of the stage 
      stage.show();         
   } 
   public static void main(String args[]){ 
      launch(args); 
   } 
}       

Compile and execute the saved java file from the command prompt using the following commands.

javac LightingEffectExample.java 
java LightingEffectExample   

On executing, the above program generates a JavaFX window as shown below.