Fade in/out effect too slow

Question

Hi!
I'm trying to do a fade in/out effect between two images using the following code:
public void render(Graphics g, Image imageFrom, Image imageTo, int width, int height) {
Image buffer=gc.createCompatibleVolatileImage(width,height);
Graphics2D g2 = (Graphics2D)buffer.getGraphics(); 
int counter=0;
while (counter<90) {
   counter=counter+2;
   double alphaScalar = Math.sin(Math.toRadians(counter)); 
   g2.setComposite(AlphaComposite.SrcOver);
   g2.drawImage(imageFrom, 0, 0, null); 
   g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, (float)alphaScalar));
   g2.drawImage(imageTo, 0, 0, null);
   g.drawImage(buffer, 0, 0, null);
  try {
   Thread.sleep(1); 
  catch(InterruptedException ex){}
g.dispose();
g2.dispose();
buffer.flush();
}The problem is that it's too slow and jerky, even in fast computers. I need a smoother transition. Can someone help me, please ?
Before you ask me, I've put a "Thread.sleep(1)" line to allow another thread playing a background music to breath.
Thanks in advance

Answer 1

Have you tried Full-Screen Exclusive mode?
import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import java.io.*;
import java.net.*;
import javax.imageio.*;
public class FlipExample {
    public static void main(String[] args) throws IOException {
        new FlipExample().animate();
        System.exit(0);
    private boolean quit = false;
    private BufferedImage im1, im2;
    private Window w;
    public FlipExample() throws IOException {
        w = new Window(new Frame());
        w.setIgnoreRepaint(true);
        w.addMouseListener(new MouseAdapter(){
            public void mousePressed(MouseEvent e) {
                if (e.getClickCount() > 1)
                    quit = true;
        String urlPrefix = "http://www3.us.porsche.com/english/usa/carreragt/modelinformation/experience/desktop/bilder/icon";
        String urlSuffix = "_800x600.jpg";
        im1=ImageIO.read(new URL(urlPrefix + "3" + urlSuffix));
        im2=ImageIO.read(new URL(urlPrefix + "4" + urlSuffix));
    public void animate() {
        GraphicsDevice gd = w.getGraphicsConfiguration().getDevice();
        try {
            gd.setFullScreenWindow(w);
            gd.setDisplayMode(new DisplayMode(800, 600, 32, 0));
            w.createBufferStrategy(2);
            BufferStrategy bs = w.getBufferStrategy();
            for(int times=0; times<5; ++times) {
                render(bs, im1, im2);
                render(bs, im2, im1);
        } finally {
            gd.setFullScreenWindow(null);
    private void render(BufferStrategy bs, BufferedImage from, BufferedImage to) {
        for(int i=0, UB=50; !quit && i<=UB; ++i) {
            Graphics2D g = (Graphics2D) bs.getDrawGraphics();
            g.drawRenderedImage(from, null);
            g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, (float)i/UB));
            g.drawRenderedImage(to, null);
            bs.show();
}