Fade in/out effect too slow

[leemon]

Hi!

 I'm trying to do a fade in/out effect between two images using the following code:

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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. I need a smoother transition.

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

[Malohkan]

if you have a good timer that can tell you how much time has elapsed between drawing calls, you can scale "counter" by the elapsed time.  Moving by 2 every time does not compensate at all for any differences in time that loops might take.