It's working on my machine (NT, 2 CPU 512mhz, JVM1.4), but the frame rate is between 20 - 30.
Xuedong Din
IT, POS/Commerce
Borders Group, Inc.
734-477 4116
-----Original Message-----
From: Florin Herinean [SMTP:[EMAIL PROTECTED]]
Sent: Thursday, January 16, 2003 10:19 AM
To: [EMAIL PROTECTED]
Subject: [JAVA3D] WG: [JAVA3D] AW: [JAVA3D] ? Frame Rates ?
Again me,
Was anybody curious enough to test my applet ? In my browser it's working,
but I wanted to know if there was somebody else able to view it.
Cheers,
Florin
-----Ursprüngliche Nachricht-----
Von: Florin Herinean
Gesendet: Donnerstag, 16. Januar 2003 16:17
An: 'Discussion list for Java 3D API'
Betreff: AW: [JAVA3D] AW: [JAVA3D] ? Frame Rates ?
I should have better explained beforehand. Sorry. The applet uses java 1.4
features, that's why it wanted from the very beginning to install in the
browser the jre1.4 . Now *that* newly installed jre doesn't have java3d
extensions installed on it so you are forwarded to the sun java3d download
page. You need java3d 1.3 in order to run it. If you have previously
installed j3d 1.3, then simply reinstall it and select as java VM the one
you have just installed (jre 1.4). If you used a previous version, then you
need to download and install the 1.3 version. Then you can come back to the
page to view the animation.
Cheers,
Florin
-----Ursprüngliche Nachricht-----
Von: ZACZEK, MARIUSZ P. (MARIO) (JSC-DM) (NASA)
[mailto:[EMAIL PROTECTED]]
Gesendet: Donnerstag, 16. Januar 2003 15:58
An: [EMAIL PROTECTED]
Betreff: Re: [JAVA3D] AW: [JAVA3D] ? Frame Rates ?
Sorry, this is probably a stupid question but how can I view this animation?
When I go to your page it first loaded the 1.4 Java runtime environment and
now
it's kicking me over to the Sun page to select the java3d to install...maybe
I
don't have something set correctly on my computer?
:)
Mario
Mariusz Zaczek
NASA - Johnson Space Center
Automated Vehicles and Orbit Analysis / DM35
Flight Design and Dynamics Division
Mission Operations Directorate
Bldg: 30A Room: 3040A
Disclaimer: "The opinions, observations and comments expressed in my email
are strictly my own and do not necessarily reflect those of
NASA."
-----Original Message-----
From: Florin Herinean [mailto:[EMAIL PROTECTED]]
Sent: Thursday, January 16, 2003 5:51 AM
To: [EMAIL PROTECTED]
Subject: [JAVA3D] AW: [JAVA3D] ? Frame Rates ?
Mario,
You can check a very simple model of the solar system that I put today
online at http://www.seelenbinder-schule.de/~fherinean/solar_system_ldr.html
If you get frame rates of less than 40 fps, then you have a problem with
your hardware or your computer is running also some other software eating
your cpu, otherwise you have a problem with your app.
Cheers,
Florin
-----Ursprüngliche Nachricht-----
Von: ZACZEK, MARIUSZ P. (MARIO) (JSC-DM) (NASA)
[mailto:[EMAIL PROTECTED]]
Gesendet: Mittwoch, 15. Januar 2003 17:45
An: [EMAIL PROTECTED]
Betreff: Re: [JAVA3D] ? Frame Rates ?
I'm sorry I may have written incorrectly...basically I had the
wakeupon condition set for a sampling time and it was set at 1....
For my code, Yes, I try to updated every millisecond..basically as fast as
possible. For my beta angle program I base in on elapsed frames (another
code I have I use the WakeupOnElapsedTime and there I set the time to 1
(millisecond)
private WakeupOnElapsedFrames conditions = new
WakeupOnElapsedFrames(0,false);
if I have '0' I get a frame rate of 28 fps
'1' 24 fps
'2' 20 fps
SO, I can't get any speedup unless I fix something else in the code.
Mario
Mariusz Zaczek
NASA - Johnson Space Center
Automated Vehicles and Orbit Analysis / DM35
Flight Design and Dynamics Division
Mission Operations Directorate
Bldg: 30A Room: 3040A
Disclaimer: "The opinions, observations and comments expressed in my email
are strictly my own and do not necessarily reflect those of
NASA."
-----Original Message-----
From: Florin Herinean [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, January 15, 2003 10:28 AM
To: [EMAIL PROTECTED]
Subject: [JAVA3D] AW: [JAVA3D] AW: [JAVA3D] ? Frame Rates ?
Also, I have seen from other emails from you, that you have a behavior that
wakes up every 1 millisecond!!! That's hard to believe. For the normal PC
under windows, the java time resolution is 10 ms. Even so, doing your
calculation every 10 ms, supposing that the entire cpu power is given only
to that, that means that EVERY FRAME you will do the calculations. And from
that, on every frame you will update the swing gui. That's not good, not if
you want animation. I would suggest to make the calculations and update the
swing gui every 1 second (1000 ms), that will free computing time to the
animation.
Cheers,
Florin
-----Ursprüngliche Nachricht-----
Von: ZACZEK, MARIUSZ P. (MARIO) (JSC-DM) (NASA)
[mailto:[EMAIL PROTECTED]]
Gesendet: Mittwoch, 15. Januar 2003 17:17
An: [EMAIL PROTECTED]
Betreff: Re: [JAVA3D] AW: [JAVA3D] ? Frame Rates ?
It's probably true that my computation are a big cause...I'll try removing
some and see what speedup I get. I do a lot of calculations for figuring out
the angle between the orbit plane and the sun (Beta angle) and for diplaying
the wedge as the angle...as well as other various calculations.
thanks for testing your code,
Mario
Mariusz Zaczek
NASA - Johnson Space Center
Automated Vehicles and Orbit Analysis / DM35
Flight Design and Dynamics Division
Mission Operations Directorate
Bldg: 30A Room: 3040A
Disclaimer: "The opinions, observations and comments expressed in my email
are strictly my own and do not necessarily reflect those of
NASA."
-----Original Message-----
From: Florin Herinean [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, January 15, 2003 9:27 AM
To: [EMAIL PROTECTED]
Subject: [JAVA3D] AW: [JAVA3D] ? Frame Rates ?
More probably there is a problem with the other code, which is eating
processing power. I mean, from the figures below, the bottleneck are the
calculations that you seem to be performing to update the gui, most probably
at every frame.
I have played with a simplified model, containing 3 spheres, 1 for sun, one
for earth and one for moon, each sphere having 128 divisions, and two line
circles, one representing the orbit of the earth around the sun, the other
the orbit of the moon around the earth, with animation to rotate the moon
around the earth and the whole branch group earth - moon around the sun. On
a p3 500 mh laptop with s3 graphic chip with java 1.4.1 and j3d 1.3 directx,
I got framerates between 80 and 90.
Cheers,
Florin
-----Ursprüngliche Nachricht-----
Von: ZACZEK, MARIUSZ P. (JSC-DM) (NASA)
[mailto:[EMAIL PROTECTED]]
Gesendet: Samstag, 11. Januar 2003 04:28
An: [EMAIL PROTECTED]
Betreff: Re: [JAVA3D] ? Frame Rates ?
actually the model does not seem to have much affect on the speed...as a
matter of fact I used a 2kb model and same issues with frame rate. These
were the results of frame rates I posted before:
Ok, here is the test results on a DIFFERENT machine:
Dell 2.4 Pentium 4, 256 Mb ram, Nvidia Geforce2, Windows 2000
ISS model (955 KB) Test Model (2 KB)
(1) Normal Run 31 fps 35 fps
w/ animating sliders
(2) no animating sliders 38 fps 46 fps
(3) earth texture reduced
by 50 % ... anim. sliders 31 fps 34 fps
Mario
(4) reduced earth texture 39 fps 46 fps
no animating sliders
yes I can get to 46 fps if I get rid of the animated sliders but that's
about it....this translates to about 10 fps on the slower machines I
mentioned before. SO I'd still like to raise the overall fps so even the
slow machine can be a bit more bareable.
Oh and the sphere (earth) is absolutely crappy. If you get close to
it you can see the angles of the sphere...I think I have no more than
20 divisions in that sphere. And the sun sphere is simply a VRML object
that is the default VRML sphere and has very few polygons as well.
The only think that I can figure after all the suggestions is that my code
may be poorly written.
When I run my program it uses over 60,000 K on windows 2000...this must mean
I have way to many variables and things defined. I'm going to have to go
back and try to minimize things a lot more.
thanks for the help, everyone!
Mario
NASA Johnson Space Center
-----Original Message-----
From: Michael P. McCutcheon
To: [EMAIL PROTECTED]
Sent: 1/10/2003 9:12 PM
Subject: Re: [JAVA3D] ? Frame Rates ?
Just to let you know...here is my system:
Pentium 2 450 Mhz.
512 MB memory
TNT 1 Graphics card
Windows 2000 (and Max OS X :)
JDK 1.4.1_01
Java3D 1.3.1 beta1
For scenes of similar complexity I get roughly 30-60 FPS. (nothing
scientific,
but suffice it to say that it can be 'smooth', even on old computers).
I think that you must be using some terribly large textures or
super-super
acurate spheres or something. Also I look at the small model...I
suspect it
was exported from a CAD tool or something with LOTS of polys. Exporters
can be
pure evil :)
With a computer as fast as yours...you should be able to get 40-60 FPS
out of
something like that, easy. Scale your models accuracy and texture size
down.
I bet you'll be surprised how fast you can make it.
Mike
ZACZEK, MARIUSZ P. (JSC-DM) (NASA) wrote:
> Hi,
> I have a program (picture attached) which has a canvas3d and couple
of
> canvas2d's and a swing interface.
> When I run this program (with the canvas3d animation running) on a
Pentium
> 3, 900 Mhz, 128Mb Ram, Nvidia TNT2,
> I get pretty crappy frame rate and graphical update. I'm talking about
5
> frames/second. This includes the
> animation of the mercator projection and the plot which are at the
bottom of
> the display.
>
> What I want to know is do any of you have any suggestions for how to
improve
> the frame rate. Could my
> code be so badly written? I try to minimize the number of Transforms
and
> Groups as possible. I did notice
> that having my sliders be updated by my animation slows me down some
so I'm
> going to have flag to not
> have them get updated if the computer is too slow. But I'd still
appreciate
> any other advice...and
> also, is there any code out there that one could run and have it
output the
> framerate....so that I could
> use that code and test the machines out to see what framerates are
possible?
>
> I know there is a Java3D FAQ regarding speed up and I've read it. The
thing
> that worries me about my code
> being slow is that I know people are making Java3D games and I imagine
they
> must be fast enough to play
> so they must be doing something right.
>
> Mario
>
> Mariusz Zaczek
> NASA - Johnson Space Center
> Automated Vehicles and Orbit Analysis / DM35
> Flight Design and Dynamics Division
> Mission Operations Directorate
> Bldg: 30A Room: 3040A
> Phone(W): 281-244-6650
> Phone(H): 832-385-3860
>
> Disclaimer: "The opinions, observations and comments expressed in my
email
> are strictly my own and do not necessarily reflect those
of
> NASA."
>
>
>
>
>
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>
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