Good point Kristyn, it seems that many video drivers only support
hardware acceleration at 16 bit depth (64K colors) or 32 bit.  I believe
I read somewhere that it may be an OpenGL thing that OpenGL doesn't
support acceleration at 24 bits (it doesn't on a Matrox G200).  In my
opinion using 16 bit color is your safest choice to achieve hardware
acceleration.  Perhaps an OpenGL expert could confirm / clarify this?

- John Wright
Starfire Research

Kristyn Fayette wrote:
>
> If you're not in a mode where OpenGL HW accel is possible, then you won't
> get it (of course).
>
> I don't know anything at all about the Voodoo, but I do have both a TNT and
> a FireGL.  I seem to always get HW accel under my TNT, but the FireGL is a
> little trickier.  I can only get accel when my desktop is set to
> 800x600x16k.
>
> I used to have (but it died in a hd crash) a program called "Pixel Format
> Enumerator" which would tell you if the mode your desktop is currently in
> would offer hardware acceleration (under Windows).  The program is freely
> available out on the net somewhere.
>
> ----- Original Message -----
> From: "Andy Sy" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Friday, July 07, 2000 7:08 AM
> Subject: [JAVA3D] OpenGL acceleration under Windoze using Voodoo 3
>
> > has anyone here (besides John Wright) gotten Java3D 1.2 OpenGL to run
> accelerated with their Voodoo 3?  Even if it isn't the Voodoo
> > 3 - as long as you were able to get Java3D OpenGL (not DirectX though) to
> run accelerated, a few tips might help, as I think the
> > problem is Java3D not calling the right OpenGL DLLs.
> >
> >
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