JavaFX | PointLight with examples

PointLight is a part of JavaFX. PointLight defines a point light source. PointLight is a fixed light source in space that radiates light in all direction.

Constructor of the class are:

1. PointLight(): Creates a new instance of pointlight
2. PointLight(Color c): Creates a new instance of point light of specific color

Commonly Used Methods:

Below programs illustrate the PointLight class:

1. Java program to create a point light of default color: This program creates a Sphere indicated by the name sphere(radius is passed as arguments). A PointLight is created named pointlight which is a point light source and radiates light in all direction. The Sphere will be created inside a scene, which in turn will be hosted inside a stage. The function setTitle() is used to provide title to the stage. Then a Group is created, and the sphere and pointlight are attached. The group is attached to the scene. Finally, the show() method is called to display the final results. A perspective camera will be created and added to the scene to render the cylinder in 3D.

   
   

   
   
   

   // Java program to create a point light of default color import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.shape.DrawMode; import javafx.scene.layout.*; import javafx.event.ActionEvent; import javafx.scene.PointLight; import javafx.scene.shape.Sphere; import javafx.scene.control.*; import javafx.stage.Stage; import javafx.scene.Group; import javafx.scene.PerspectiveCamera; import javafx.scene.paint.Color;    public class pointlight_2 extends Application {        // launch the application     public void start(Stage stage)     {                    // set title for the stage         stage.setTitle("creating sphere");            // create a sphere         Sphere sphere = new Sphere(80.0f);            // create a point light         PointLight pointlight = new PointLight();            // create a Group         Group group = new Group(sphere, pointlight);            // translate the sphere to a position         sphere.setTranslateX(100);         sphere.setTranslateY(100);            // translate point light         pointlight.setTranslateZ(-1000);         pointlight.setTranslateX(+1000);         pointlight.setTranslateY(+10);            // create a perspective camera         PerspectiveCamera camera = new PerspectiveCamera(false);         camera.setTranslateX(0);         camera.setTranslateY(0);         camera.setTranslateZ(0);            // create a scene         Scene scene = new Scene(group, 500, 300);            scene.setCamera(camera);            // 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 point light of a specified color(e.g. RED): This program creates a Sphere indicated by the name sphere( radius is passed as arguments). A PointLight is created named pointlight( with a specified color passed as an argument which is a point light source and radiates light in all direction. The Sphere will be created inside a scene, which in turn will be hosted inside a stage. The function setTitle() is used to provide title to the stage. Then a Group is created, and the sphere and pointlight are attached. The group is attached to the scene. Finally, the show() method is called to display the final results. A perspective camera will be created and added to the scene to render the cylinder in 3D.

   
   

   
   
   

   // Java program to create a point light // of specified color(eg RED) import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.shape.DrawMode; import javafx.scene.layout.*; import javafx.event.ActionEvent; import javafx.scene.PointLight; import javafx.scene.shape.Sphere; import javafx.scene.control.*; import javafx.stage.Stage; import javafx.scene.Group; import javafx.scene.PerspectiveCamera; import javafx.scene.paint.Color;    public class sphere_1 extends Application {        // launch the application     public void start(Stage stage)     {                    // set title for the stage         stage.setTitle("creating sphere");            // create a sphere         Sphere sphere = new Sphere(80.0f);            // create a point light         PointLight pointlight = new PointLight(Color.RED);            // create a Group         Group group = new Group(sphere, pointlight);            // translate the sphere to a position         sphere.setTranslateX(100);         sphere.setTranslateY(100);            // translate point light         pointlight.setTranslateZ(-1000);         pointlight.setTranslateX(+1000);         pointlight.setTranslateY(+10);            // create a perspective camera         PerspectiveCamera camera = new PerspectiveCamera(false);         camera.setTranslateX(0);         camera.setTranslateY(0);         camera.setTranslateZ(0);            // create a scene         Scene scene = new Scene(group, 500, 300);            scene.setCamera(camera);            // 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/PointLight.html