Hello David,
Tuesday, April 03, 2001,
7:29:48 PM, you wrote:
YDJ> I believe that unless your texture is by
reference Java3d creates a
YDJ> *retained* version (as it does for
everything) For most things this copy is
YDJ> not that expensive,
but for geometry and textures it is *quite* expensive.
YDJ> When I
profile my application I see approx 40 percent of my memory being
YDJ>
stored in retained versions of my scenegraph. I can't really figure out
why
YDJ> it is necessary to do that. The problem is that if you
use by-reference for
YDJ> things, to save memory, you also pay a
performance penalty because Java3d
YDJ> starts sending things every
frame and stop using display lists.
YDJ> Dave Yazel
I think
you're right, but look - Java3D takes memory twice:
First - when I add
Shape3D to BranchGroup
Second - when I add BranchGroup to Universe in first
time
and in both cases - about 10Mb.
And if I do
BG.detach();
and
then MyUniverse.addBranchGraph(BG); (second time) it DOESN'T TAKE
MEMORY
again. Do you know why it is so?
YDJ> -----Original
Message-----
YDJ> From: Andrey [
mailto:[EMAIL PROTECTED]]
YDJ>
Sent: Tuesday, April 03, 2001 12:10 PM
YDJ> To:
[EMAIL PROTECTED]YDJ>
Subject: [JAVA3D] Memory usage. Why?
YDJ> Hi
everybody.
YDJ> When create some textured object and then add then
to Branch group, it
YDJ> takes
YDJ> about 10Mb.
OK.
YDJ> But when I add a this BranchGroup to Universe, it takes in
additional 8Mb.
YDJ> So what does Java3D do when BranchGroup is adding
to Universe to take so
YDJ> much memory?
YDJ> I got
WindowsNT,RivaTNT2, jdk 1.2.1 with Java3D for OpenGL.
YDJ>
--
YDJ> Best regards,
YDJ>
Andrey
mailto:[EMAIL PROTECTED]YDJ>
===========================================================================
YDJ>
To unsubscribe, send email to
[EMAIL PROTECTED] and include in
the body
YDJ> of the message "signoff JAVA3D-INTEREST". For
general help, send email to
YDJ>
[EMAIL PROTECTED] and include in
the body of the message "help".
YDJ>
===========================================================================
YDJ>
To unsubscribe, send email to
[EMAIL PROTECTED] and include in
the body
YDJ> of the message "signoff JAVA3D-INTEREST". For
general help, send email to
YDJ>
[EMAIL PROTECTED] and include in
the body of the message "help".
--
Best
regards,
Andrey
mailto:[EMAIL PROTECTED]===========================================================================
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 "
