51. Bloom and Glow Effects

Both Bloom and Glow can be used to make something seem glowing.

Here a green text is glowing over a red rectangle. Threshold (bloom) and Level (glow) are values between 0 and 1. Note a threshold of 0.1 is similar to level of 0.9.

---

package ex51;

import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.effect.Bloom;
import javafx.scene.effect.Glow;
import javafx.scene.paint.Color;
import javafx.scene.text.Font;
import javafx.scene.text.FontWeight;
import javafx.stage.Stage;

public class Ex51 extends Application {
    
    @Override
    public void start(Stage stage) {
        Group root = new Group();

        Label lab1 = new Label(" Bloom");
        lab1.setLayoutX(100);
        lab1.setLayoutY(100);
        lab1.setMinWidth(250);
        lab1.setFont(Font.font("Georgia", FontWeight.BOLD, 64));
        lab1.setStyle("-fx-background-color: red;-fx-text-fill: green;");
        
        Bloom bloom = new Bloom();
        bloom.setThreshold(.1);
        lab1.setEffect(bloom);
        
        Label lab2 = new Label(" Glow");
        lab2.setLayoutX(100);
        lab2.setLayoutY(200);
        lab2.setMinWidth(250);
        lab2.setFont(Font.font("Georgia", FontWeight.BOLD, 64));
        lab2.setStyle("-fx-background-color: red;-fx-text-fill: green;");
        
        Glow glow = new Glow();
        glow.setLevel(0.9);
        lab2.setEffect(glow);
        
        root.getChildren().addAll(lab1, lab2);
        
        Scene scene = new Scene(root, 500, 400, Color.BEIGE);
        stage.setTitle("Example 51. Bloom Glow");
        stage.setScene(scene);
        stage.show();
    }

    public static void main(String[] args) {
        Application.launch(args);
    }
}

---

This is the output:

---