Fast blur in JAVA2D

Processing Coding Questions
7

The solution for FX2D is very simple! However, it works different than filter(), but for my case it is perfect. Unfortunately this won’t work on other renderers, here’s the code:

void draw() {
  GraphicsContext ctx = ((Canvas) surface.getNative()).getGraphicsContext2D();
  GaussianBlur blur = new GaussianBlur();
  blur.setRadius(10);
  ctx.setEffect(blur);
  // do some drawing, anything drawn from here on will be blured
  // to disable the effect, do:
  ctx.setEffect(null);
}

JavaFX includes multiple more effects, like Glow and DropShadow, be sure to check them out if you want lag-free effects.
Don’t remember which package they’re from, you’ll have to search yourself.

2 Likes