Disable ImageView Anti-Aliasing in JavaFX [duplicate]
Asked Answered
M

1

5

I made an ImageView in JavaFX and load a pixel art into it. And I scaled up, but I can't clearly see the pixels of the art. The problem should be the anti-aliasing. So I need to see clearly the pixels like on the second link. How can I turn anti-aliasing off?

I tried with img1.setSmooth(false);

What I made in JavaFX: image1

How it supposed to look like: image2 //preview made in piskel

Here's my code:

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.layout.AnchorPane;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;

public class Main extends Application {
@Override public void start(Stage primaryStage) {
    AnchorPane root = new AnchorPane();
    StackPane hb = new StackPane();
    Image image = new Image("pixelart.png");
    ImageView img = new ImageView(image);
    img.setFitWidth(500);
    img.setFitHeight(500);
    img.setSmooth(false);
    hb.getChildren().add(img);
    root.getChildren().addAll(hb);
    Scene scene = new Scene(root,800,400);
    primaryStage.setScene(scene);
    primaryStage.show();    
}
public static void main(String[] args) {launch(args);}
}

pixelart.png: image3

Mayan answered 4/9, 2021 at 11:32 Comment(0)
S
6

One approach is to turn smoothing off when you construct the Image. Set the last argument of the constructor, smooth, to false.

Image image = new Image("pixelart.png", 400, 400, true, false);

image

As tested:

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;

public class Main extends Application {

    @Override
    public void start(Stage primaryStage) {
        StackPane root = new StackPane();
        Image image = new Image("pixelart.png", 400, 400, true, false);
        ImageView view = new ImageView(image);
        root.getChildren().add(view);
        Scene scene = new Scene(root, 450, 450);
        primaryStage.setScene(scene);
        primaryStage.show();
    }

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

Sporran answered 4/9, 2021 at 12:36 Comment(0)

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