Usually triangles are faster then quads (rectangles). Maybe your loader can
split  your quad in 2 triagles, if possible.

Also be careful with transformGroups. Use compile() to optimize your scene.

Alessandro

 --- Edward Pataky <[EMAIL PROTECTED]> escreveu:
> I wrote my own loader ... but before you blame me, these are only rectangles
> I am using ... !!!
>
>
> Alessandro Borges <[EMAIL PROTECTED]> wrote:
> Edward,
>
> What 3D model loader are you using ?
> What so/cpu/video card are you using ?
>
>
> I also had a performance problem some time ago, but I discovered  it was due
> a video driver bug. A  50k polygon count model was stressing the vcard PCI
> bus. (GForce2 PCI). The correct video driver update solved  (Detonator
> 30.82).
>
> Alessandro
>
> Edward Pataky <[EMAIL PROTECTED]> wrote:
> I am making a program which shows integrated circuits designs in 3D ... The
> entire universe is less than an inch....dimensions are in micrometers....how
> can I make the performance better?  should I make the dimensions larger, like
> in meters, or should I keeop them smaller ?  I have currently been using
> larger units so 1um is actually 1 meter in my program......I thought that
> would work....does java3D work better with small structures or larger
> ones...?   It uses TONS os memory and runs slow for large (a hundred or so
> objects...) universes .... really it sucks. ...  do you think it is my
> viewing scheme that might be inneficient....please help....
>
>
>
>
>
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