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Original post by Glass_Knife The next Java Games: Input and Sound article is in the works. I have written all the code, I just need to write the article.

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Original post by Glass_Knife Also, there are speed difference on slower machines when using the buffered image. I am not saying that it is the best case, but I have an old Pentium III that I tested the code with, and in that case, using the buffered image was faster.

BufferedImage bi = gc.createCompatibleImage(640, 480);

VolatileImage bi = gc.createCompatibleVolatileImage(640, 480);

if (bi.validate(app.getGraphicsConfiguration()) == VolatileImage.IMAGE_INCOMPATIBLE)
{
   System.out.println("Recreating image");
   bi = gc.createCompatibleVolatileImage(640, 480);
}

g2d = bi.createGraphics();

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Original post by Karan Bhangui For a n00bie like me just stepping into 2d graphics programming in java, this article has tremendously helped clear my understanding of rendering. I knew of the so called 'traditional' method but the java tutorials/books always said to call paint whenever needed. I look forward to future java articles from you :D Thanks!

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Original post by elFarto This increased my FPS from about 190 to just over 1000 (changing the time to draw 1 frame from ~5ms to ~1ms). YMMV.

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Original post by Glass_Knife Quote: Original post by elFarto This increased my FPS from about 190 to just over 1000 (changing the time to draw 1 frame from ~5ms to ~1ms). YMMV. That is one heck of a speed increase!

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Original post by ndatxcod Excellent tutorial. We want more tuts on Java!

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Original post by elFarto Faster anyone? [image] All I did was add -Dsun.java2d.opengl=True to the start parameters, which causes the Java API to use the OpenGL pipeline rather than the DirectDraw one, resulting in much much faster operations. And they say Java is slow . Regards elFarto

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Original post by Iftah First, thanks for the great tutorial! I am looking forward to the next one!

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Original post by Iftah I am a complete java noob, so excuse me in advance if my questions are idiotic: - Is it possible to use this technique in an Applet?

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Original post by Iftah - I tried copy-pasting the final code and compiling failed because it couldn't find KeyAdaptor, BufferStrategy and BufferedImage. I am using javac version 1.5.10, and I put in the path the bin,lib,include,jre folders. What did I do wrong? edit: hmmm I didn't know there is JDK6, I'll try downloading it and see if that is the problem. edit: same problem with the JDK6

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Original post by domstyledesign how about active rendering on a jpanel (which does not consume the entire screen)?

// Create game window...
JFrame app = new JFrame();
//Don't do this now : app.setIgnoreRepaint( true );
app.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
// Create canvas for painting...
Canvas canvas = new Canvas();
canvas.setIgnoreRepaint( true );
canvas.setSize( 400, 300 );
		
// Create a JPanel with the canvas
JPanel p1 = new JPanel();
// Ignore repaint here
p1.setIgnoreRepaint( true );
p1.add( canvas );
		
// Create another JPanel with a JButton
JPanel p2 = new JPanel();
JButton b1 = new JButton("ASDF");
b1.addActionListener(new ActionListener() {
  @Override
  public void actionPerformed(ActionEvent e) {
    System.out.println("ASDF");
  }
});
p2.add(b1);
		
Container contentPane = app.getContentPane();
contentPane.setLayout( new FlowLayout() );
contentPane.add( p1 );
contentPane.add( p2 );
app.pack();
app.setVisible( true );

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Original post by domstyledesign is that safe though? i mean, what about the z-order bug when mixing lightweight and heavyweight components? i want an actively rendered jpanel that i can safely drop into a completely-SWING app w/ no worries

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Original post by Aldacron This page should explain what you need to know about mixing heavyweight and lightweight components.

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Original post by Glass_Knife So at this point, I would say "Don't mix AWT and Swing."

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Original post by domstyledesign Quote: Original post by Glass_Knife So at this point, I would say "Don't mix AWT and Swing." and i would agree - which is why i was asking about an actively rendered jpanel, and not a jpanel with an actively rendered canvas inside it.

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Original post by Glass_Knife According to the java tutorial on active rendering, "Finally, be very careful to avoid deadlocks if you decide to use both active and passive rendering simultaneously--this approach is not recommended."