Nathan,

java -verbose:gc
http://java.sun.com/j2se/1.3/docs/tooldocs/solaris/java.html

I don't know... I suspect a JVM/driver/platform issue (that helps!). Try
switching to the OpenGL version of Java 3D and see if it improves. You have
a pretty cutting edge development environment - a brand new card and a brand
new OS. You could also try tweaking the Thread priority for Java 3D
(shudder) using VirualUniverse.setJ3DThreadPriority. Java 3D creates 3 time
critical threads on Windows, and it could be that the XP thread scheduler is
starving the mouse when they are running.

The book is coming along: we've completed one full round of PDF reviews
(typeset pages) with me, proof readers and the technical reviewer. I should
get the second round of PDFs as soon as Manning get back from the holidays.
The changes should be minimal, so I'm hoping that it will be *finally*
finished in the course of this month.

Best of luck.

Sincerely,

Daniel Selman

-----Original Message-----
From: Discussion list for Java 3D API
[mailto:[EMAIL PROTECTED]]On Behalf Of Nathan Bower
Sent: Sunday, January 06, 2002 8:37 AM
To: [EMAIL PROTECTED]
Subject: Re: OverlayTester problem


> I would try switching on verbose GC output for the JVM and see if the
delay
> coincides with GC. What platform/versions are you running on?

OK I turned verbose on (very funky output) but this failed to show any
problems, the fps is still written to the console (the stutters co-incide
with this), and there is no other output when this happens. The stutter
still occours when the java3d window does not have the focus.

Perhaps I didnt turn the right thing on? By GC you mean Garbage Collection
right? I just did java -verbose <blah>.

Here are my platform specifics:

java 1.3.0_02 SDK
java3d 1.2.1 SDK Direct-X
win xp
geforce3 ti200 (just got this - Im estimating its about 25 times faster than
my old tnt2-m64! Awsome!)

Thanks for your help,

Nathan

PS. Any news on the release date of your book Daniel???

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