----- Original Message -----
Sent: Monday, July 15, 2002 8:44 AM
Subject: Re: [JAVA3D] Performance
Experience
Add this as a custom behavior:
import java.util.*;
import
javax.media.j3d.*;
/** A behavior to calculate the framerate (number of Frames
Per Second)
*
*
@author Corysia Taware [EMAIL PROTECTED]
* @version $Revision$
*/
public final class FramePerSec extends Behavior
{
private int frameCount = 0;
private long lastTimeCheck =
0;
private
WakeupCondition condition = new WakeupOnElapsedFrames(100);
private vp2testb
backref;
public void
initialize()
{
lastTimeCheck =
System.currentTimeMillis();
wakeupOn(condition);
}
public
FramePerSec(){
}
public void
processStimulus(Enumeration wakeup)
{
long currTime =
System.currentTimeMillis();
System.out.println("FPS: " +
(300000 / (currTime - lastTimeCheck)));
lastTimeCheck =
currTime;
wakeupOn(condition);
}
}
-----Original Message-----
From: Zoran Krunic [mailto:[EMAIL PROTECTED]]
Sent: Monday, July 15, 2002 10:04 AM
To:
[EMAIL PROTECTED]
Subject: Re: [JAVA3D]
Performance Experience
Hi There,
Is there a way to get FPS measurements with j3D 1.2.1 ?
Thanks,
Zoran
----- Original Message -----
From:
"Chien Yang" <[EMAIL PROTECTED]>
To:
<[EMAIL PROTECTED]>
Sent: Friday,
June 21, 2002 10:47 AM
Subject: Re: [JAVA3D]
Performance Experience
In Java 3D 1.3 beta, we did ship with a FPSCounterDemo in our
demo.
The FPSCounterDemo uses a FPSCounter behavior to
measure the frame rate
of the scene. FPSCounter is
easy to use, and all you need is to add
roughly the
following 3 lines to your code :
private FPSCounter
fpsCounter = new FPSCounter();
// Create the
Framecounter behavior
fpsCounter.setSchedulingBounds(bounds);
objRoot.addChild(fpsCounter);
FPSCounter is our prefer method of measuring frame rate. Any
comment
and suggestion to improve FPSCounter will be
greatly appreciated.
- Chien Yang.
Java 3D
Team.
> Date: Fri, 21 Jun 2002 13:18:46 -0400
> From: Lan Wu-Cavener <[EMAIL PROTECTED]>
> Subject: Re: [JAVA3D] Performance Experience
> X-Sender: [EMAIL PROTECTED]
> To:
[EMAIL PROTECTED]
> MIME-version:
1.0
> Content-transfer-encoding:
quoted-printable
> Delivered-to:
[EMAIL PROTECTED]
>
> At 11:25 AM 6/21/2002 -0500, you wrote:
> >I'm basically having a behavior wake up on every frame and
marking the
> >time and comparing. I
randomly choose frames and average the times and
do
> >1/time = fps.
> >
> Thanks!
>
> Be careful with what you do in the
behavior. That might be the reason to
> slow down
the application. I don't think that calculating frame rate will
> do that though.
>
>
> >
>>> Lan Wu-Cavener <[EMAIL PROTECTED]> 06/21 11:01 AM
>>>
> >your note reminded me of a
question I had related to the performance. I
was
> >running my j3d program on w2k. I
found that adjusting the processes
> >priority
through task management tool can change the j3d program
> >performance although it is not recommended to change the
process
priority.
> >I
wondered if there is similar problem with XP OS (which I don't have any
> >experience). Just a thought for you to check
out.
> >
> >Using
geometry byRef will improve the performance in terms of changing
> >Shape3d's geometry. But it will not have big impact
on the scene
rendering.
>
>The latter can be improved by occlusion culling.
> >Oh, how do you test the number of frame per second?
> >
> >
> >At 05:21 PM 6/21/2002 +0200, you wrote:
> > >Hi,
> > >
> > >will using the same geometry object along
several shape3d nodes
> > >reduce the memory
usage IN THE VIDEO CARD memory
> > >or only
the SYSTEM memory used by J3D for java objects ?
>
> >
> > >
>
> > >-----Original Message-----
> >
> >From: Discussion list for Java 3D API
>
> > >[mailto:[EMAIL PROTECTED]]
On Behalf Of Shawn Kendall
> > > >Sent:
Freitag, 21. Juni 2002 06:14
> > > >To:
[EMAIL PROTECTED]
> > >
>Subject: Re: [JAVA3D] Performance Experience
>
> > >
> > > >
> > > >Chad Zalkin wrote:
> >
> >
> > > >> My application runs
really slow with my current scene. When
>
> > >I removed
> > > >>
textures, I went from < 10 fps to ~30 fps. When I killed a lot
of
> > > >> geometery but added some
textures, I went to ~60 fps.
> > > >That's
with no
> > > >> atmospherics and no
lights and no sound.
> > > >>
> > > >> My system sure should be able to
handle this:
> > > >>
> > > >> Dual Athlon MP 1700+
> > > >> 512 MB Ram
> >
> >> ATI Radeon 7000 (64 mb vid ram)
>
> > >> JDK 1.4
> > > >>
Java3d 1.3 beta 2
> > > >> WindowsXP
Pro
> > > >>
> > > >> Any Ideas why this would run so slow? I
don't think I have
> > > >any
thread
> > > >> blocking/locking or
otherwise obviously bad code.
> > >
>>
> > > >> Thanks
> > > >> Chad Zalkin
> > > >
> > > >Not
knowing anything else about the size of your apps textures
> > > >and amount of geometry, one possiblity is that you
are going
> > > >over your video card
memory limit. The behavior you describe
>
> > >is typical of that. Whenever you go over the amount
of
> > > >available memory, the render
system will have to page in and
> > > >out
the geometry and textures in your scene. That paging
> > > >across the AGP port will dramatically reduce
render
> > > >performance the moment it
happens.
> > > >
> > > >Remember, a large part of your video memory is use
for frame
> > > >buffer, then the rest can
be used for geometrry and textures.
> > >
>Also, any other applications can be holding on to video memory
> > > >as well, making it less for your J3D
app.
> > > >
>
> > >Shawn Kendall
> > > >Java3D
Game Tech Developer
> > > >
> > >
>===============================================================
> > > >============
>
> > >To unsubscribe, send email to [EMAIL PROTECTED] and
> > > >include in the body of the message
"signoff JAVA3D-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 JAVA3D-INTEREST".
For general help, send email
to
> > >[EMAIL PROTECTED] and include in the body of the
message "help".
> >
>
>Lan Wu-Cavener
> >Dept. of Landscape
Architecture
> >
>
>===========================================================================
> >To unsubscribe, send email to [EMAIL PROTECTED]
and include in the
body
>
>of the message "signoff JAVA3D-INTEREST". For general help, send
email
to
>
>[EMAIL PROTECTED] and include in the body of the message
"help".
> >
>
>ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ
> >To unsubscribe,
send email to [EMAIL PROTECTED] and include in the
body
> >of the message "signoff
JAVA3D-INTEREST". For general help, send email
to
> >[EMAIL PROTECTED] and include
in the body of the message "help".
>
> Lan Wu-Cavener
> Dept. of
Landscape Architecture
>
>
==========================================================================To
unsubscribe, send email to [EMAIL PROTECTED] and include
in the body
> of the message "signoff
JAVA3D-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
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of the message "signoff JAVA3D-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
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