i have the same question and if I draw 10000 boxes,it is out of memory.
I don't know why,can someone give us a good resolvtion.
----- Original Message -----
From: "R Wang" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, November 22, 2000 2:07 PM
Subject: [JAVA3D] How to handle a large number of objects? (Java3d sucks?)
> Hello guys,
> I've been playing around with java3d for 2 weeks and think it's a pretty
cool thing until today. I was trying to build a scene of 128 x 128 simple
boxes. I arranged each box with a new TransformGroup like this:
>
> Transform3D trans = new Transform3D();
> TransformGroup tg;
> for (int i = 0; i < 128; i++)
> for (int j = 0; j < 128; j++) {
> trans.do_some_translations...
> tg = new TransformGroup(trans);
> tg.add_a_box_object...
> }
>
> Was it the way that you guys did to construct such a scene? (I hope I was
wrong.) but the rendering seemed to last forever until "out of memory" error
showed up. Even if I used "java -mx256m xxxx" command, no good at all. I
finally got the scene show up by reducing the number of objects to 30 x 30 !
..and the rendering is way slow. If that was java3d supposed to be, it
really SUCKS! By openGL on the same PC I can easily make that scene and even
animate it. The rendering only takes a couple of seconds and I can run lots
of other big programs at the same time, like Visual c++, matlab...
> I don't know why java3d makes contructing objects so complicated...why do
we need that memory-sucking transformgroup for every object?
> I feel so disappointed tonight because of the poor performance of java3d.
I spent lots of time during this two weeks learning java3d as I thought
java3d can make that scene easily. (It's 3D tool, isn't it?). But now I feel
desperate 'cause I've been working on this for two weeks and looks like I
have to move back to openGL..I'm running out of time:-(
>
> ..so my question is; does someone have experience building a scene with
large number of objects? How did you do that to avoid memory exhaustion
>
>
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