Well, this is probably not helpful (since you seem to want to use PCs), but
you could always get a Sun Enterprise450 and put 3 Expert3D cards in it.
The Expert3D is an OEM'd Intense3D Wildcat 4110 ... we've been very happy
with them for Java3D and OpenGL, they have pretty good performance. I'm
using them in dual-processor Ultra60s, and will be putting 3 in an E450
(once the fans arrive :) These cards have some nice highend features the
cheaper PC cards don't (like a huge amount of texture ram, stereo support,
and frame sync across all 3 cards)
While such a setup is moderately expensive (compared to a PIII and an
NVidia card), since you are an academic, you might want to check out Sun's
AEG (Academic Equipment Grant) program, if they still run it.
Blair
--On Friday, October 13, 2000 6:01 AM -0700 Alejandro Terrazas
<[EMAIL PROTECTED]> wrote:
> I am continuing to develop my Cave and have run into some challenges. I
> really need to have 3 or more projectors.
>
> Multiple PCI cards are not practical with Java3D. As mentioned
> previously, hardware acceleration is not utilized when any part of the
> Canvas touches a secondary or tertiary screnn. This may not be a problem
> when a "dual-head" card is used. Most dual-head cards, however, are not
> so hot (something like 8 MB/monitor). If someone knows of a hot one,
> please let me know. This might give me the 3 screens.
>
> Is the lack of hardware acceleration with multiple PCI cards a function of
> Java3D specifically or is this a general problem?
>
> When you want more than 3 screens, you get into the multiple PCI card
> thing again because, as far as I know, multiple AGP computers are not
> available. Again, please correct me on this. Even so, I wonder if the
> same problem will occur with multiple AGP cards as occurs with multiple
> PCI.
>
> Would it be easier to have multiple single-card PCs working on a network?
> Again, I was hoping to avoid that but I may be running out of choices.
> How would such a system work?
>
> Last question. Is there anyone out there in the world who is actually
> running a decently performing 3 or more monitor Cave with Java3D? Even if
> you won't tell me how you did it, the simple fact that you did would be
> informative.
>
> As always, thanks.
>
> Alex Terrazas
> University of Arizona
> [EMAIL PROTECTED]
>
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