[simpits-tech] Re: 3d outside views?

Mon, 29 Jul 2002 12:04:28 -0500

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Not to burst the bubble, how useful is a 3D setup in a flight simulator?

I'm assuming that the main source of 3D information our brain utilizes is
different depending on how far away the object is we're looking at. For
objects close up, we probably make heavy use of triangulation, where the
brain sees two fairly different images from the left and right eye.

However, for anything further away (no knowledge here, but a guess would be
anything beyond about 10-20 feet), and the images would be so similar that
trianguation becomes almost useless (and grows progressively useless as the
distance increases). At this point, the brain relies less on trianguation
and more on apparent size and angular velocities.

One of the biggest factors (in my experience) for visual submersion is
getting the peripheral areas nailed down. Your eyes are much more sensitive
to motion at the peripheries then in the middle, and the far left is not
seen at all by the right eye and vice versa.

The means, that unless you plan on flying hang-gliders or other birds where
your face is less then 10' off the ground, a full 3D projector set up might
be better spent getting a crisper image that completely wraps around.

Now if you were building an F1 sim, 3D would absolutely rock!

Just my 2 bits. File where deemded appropriate.

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<P><FONT SIZE=3D2>Not to burst the bubble, how useful is a 3D setup in =
a flight simulator?</FONT>
</P>

I'm assuming that the main source of 3D information =
our brain utilizes is different depending on how far away the object is =
we're looking at. For objects close up, we probably make heavy use of =
triangulation, where the brain sees two fairly different images from =
the left and right eye.

However, for anything further away (no knowledge =
here, but a guess would be anything beyond about 10-20 feet), and the =
images would be so similar that trianguation becomes almost useless =
(and grows progressively useless as the distance increases). At this =
point, the brain relies less on trianguation and more on apparent size =
and angular velocities.

One of the biggest factors (in my experience) for =
visual submersion is getting the peripheral areas nailed down. Your =
eyes are much more sensitive to motion at the peripheries then in the =
middle, and the far left is not seen at all by the right eye and vice =
versa.

<P><FONT SIZE=3D2>The means, that unless you plan on flying =
hang-gliders or other birds where your face is less then 10' off the =
ground, a full 3D projector set up might be better spent getting a =
crisper image that completely wraps around.</FONT></P>

<P><FONT SIZE=3D2>Now if you were building an F1 sim, 3D would =
absolutely rock!</FONT>
</P>

Just my 2 bits. File where deemded =
appropriate.

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