Hey-

I never heard back from anyone regarding
collaborating on some of these imposter
methods.  Anyway, I am prepared to go on
and I hope others will join me or at least
correct me when I am wrong.  There is some
possibility of making small academic money
for helping with this.

A little background.  I am studying spatial
memory and scanning peoples brains while they
navigate in virtual environments.  The subject
will sit in an MRI machine and navigate the
MSU environment.  We will also be looking
at transfer of memory across reality and
VR.  Finally, the subject will be able to
drive a video equiped robot around campus
while lying in the scanner.  The subject
will wear special goggles but we also want
to have subjects navigate over the internet
on flat screens, in our Immersadesk using
shutter glasses, etc...

The Java 3D view model is really working nicely
in this regard-thanks to a lot of help from
Mark Hood at Sun--see his replies to my
questions on the archives if you are interested.


Project Goals:

Making an accurate virtual MSU allows me to
perform accurate comparisons within/between
subjects.  I may want to distort the virtual
envioronment later but I want to start from
the most realistic that is practical.

I am having students model different buildings
using 3DStudio MAX.  We started with Beaumont
Tower.  In the HMD, this thing is really nice.
It's one of the only truly immersive experiences
of my life.  We are teaching a class on VR and
I am going to have this project as a part of that.

So, where to go next.  I am making some progress
on loading the terrain as a whole.  We are beginning
in the park area around Beaumont and working
our way outward.  But this is where it gets tough.
How do I load the next terrain element--and how
do I break up my terrain into elements.  Some
sort of data structure is necessary, right?
Also, is it best to go through the LOD mechanim
to load up the terrain and neighborhood?  How
should I organize my terrain model?  Sure,
someone will say just dynamically load and cache
the geometry--but I am not sure how to implement
that.  Maybe it is best to deform a surface
dyanimically according to the position of the
viewer.  For example, the terrain model for MSU
is in a .dwg format which I believe is a vector
format.  The model gives 1 ft elevations for the
entire 7000 acres campus (MSU is huge).  Could I
write a custom Java NIO to read the format, skip
the appropriate elements and update the terrain
model?

Anybody have suggestions?

Alex

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