Hi Keith,
here's a copy of my reply on javagaming.org:
What java version are you seeing this on? Also, what OS/video board?
Is this full-screen or windowed application
I could imagine a situation where buffer strategy takes all
available video memory so there's not enough left for a large
volatile image..
Thanks,
Dmitri
On Sun, May 07, 2006 at 07:55:37PM -0700, [EMAIL PROTECTED] wrote:
> Hi,
>
> I posted this at:
> http://www.javagaming.org/forums/index.php?topic=13604.0
> and was told to ask you guys about this.
>
> I use a big VolatileImage to pre-render the static background of my game,
> and this image is painted onto a 2-buffer BufferStrategy since this improves
> performance (on windows the FPS nearly doubled).
>
> Strangely though, on some computers the VolatileImage seems to be
> unaccelerated but the BufferStrategy is. When this happens the FPS is only
> about 11 when on most computers it is 70 (This must be because it takes ages
> to paint the unaccelerated VolatileImage to the BufferStrategy). I also get
> the following results:
>
> bufferStrategy.getCapabilities().getFrontBufferCapabilities().isAccelerated()
> returns true
> bufferStrategy.getCapabilities().getBackBufferCapabilities().isAccelerated()
> returns true
> GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice().getAvailableAcceleratedMemory()
> returns 0 before and after I create the BufferStrategy or the big
> VolatileImage.
>
> I assume that the VolatileImage is not accelerated since there is no
> accelerated memory, but why then is the BufferStrategy accelerated?
> Thanks,
> Keith
> [Message sent by forum member 'commanderkeith' (commanderkeith)]
>
> http://forums.java.net/jive/thread.jspa?messageID=111357
>
> ===========================================================================
> To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
> of the message "signoff JAVA2D-INTEREST". For general help, send email to
> [EMAIL PROTECTED] and include in the body of the message "help".
===========================================================================
To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
of the message "signoff JAVA2D-INTEREST". For general help, send email to
[EMAIL PROTECTED] and include in the body of the message "help".
