oops...sorry, I meant to include that OS info.
I'm running:
Windows 2000
Java 2 SDK v1.3.1_01
Java 3D 1.3 (DirectX) SDK
The size of the texture for the earth (and mercator map) is: 254 KB
The sphere used for the earth is just the standard default sphere.
The size of the VRML model is: 955 KB
The number of stars is: 4900
I may be kind of awkward in my design of the animation though. I first
declare
all the objects I have in my createSceneGraph(). I then pass these objects
to
my behavior, where based on inputs in the swing menu, I control what happens
to the
objects (earth, VRML space station). The person that made me the plot panel
put in a small frame counter he made and that is what I use to get
framerate. If I
don't display the Mercator map or the plot panel my animation speeds up a
little.
Also, I did notice that if I don't have the menu with the sliders
displayed...ie
I select my second menu where the Sliders are not animated then I get a a
nice
speed up. What is also bad is that during my animation my
rotation,zooming,panning
become slower...I guess I should expect that.
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."
-----Original Message-----
From: John Wright [mailto:[EMAIL PROTECTED]]
Sent: Friday, January 10, 2003 11:47 AM
To: [EMAIL PROTECTED]
Subject: Re: [JAVA3D] ? Frame Rates ?
Mario,
The first aspects (from a Java 3D point of view) that I'd look at would
be the size of your texture map for the earth model and how are you
creating your earth sphere (how many vertices does it have?). The TNT2
isn't exactly a fast video card by today's standards and I suspect it
would be sluggish when using a large texture. Try replacing that
texture with a 16x16 solid color image and see what difference you get
in frame rate.
>From casually looking at your screenshot I'd expect a better frame rate
than you are reporting, even on a TNT2. You also don't mention if you
are running OpenGL or DirectX, what operating system, which version of
Java 3d, etc.
In the demos you should find "FPSCounter" to give some idea of how to
implement your own frame rate counter.
j3d.org note: Justin - we really should have an easy to find example of
how to make a frame rate counter in the j3d.org FAQ. This is a very
basic aspect of Java 3D that most everyone ends up wondering about when
they are first learning Java 3D (I don't think Sun's example code was
included until Java 3D version 1.3).
- John Wright
Starfire Research
"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."
>
> ------------------------------------------------------------------------
> Name: baatscreen.jpg
> baatscreen.jpg Type: JPEG Image (image/jpeg)
> Encoding: base64
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