Re: 3 Channel

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Angus Dorbie (dorbie++at++sgi.com)
Thu, 09 Sep 1999 16:08:29 -0700

You need to ensure that you have the correct eyepoint and the correct
frustum. At first glance it seems you require symmetric matching frusta
and a channel heading offset, but the eye must then be in the center of
all channels.

See this presentation:

http://www.sgi.com/software/performer/presentations/geometry/index.htm

Cheers,Angus.

Devrim Erdem wrote:
>
> Hi,
>
> I am trying to build an application with 3 displays ( monitors ). I have three
> channels which are skewed repectively 50, 0, -50 degrees around Z axis.
>
> I plan to put the monitors like this:
> ____1____ ----------------
> / \ ) alpha
> / \
> 2 3
> / \
> / \
>
> But I am not sure what to see on each monitor. When I stand in front of
> a straight road ( in town.flt ) :
>
> -------------------------------
> -------------------------------
>
> The road is rendered as follows with the current channel config :
>
> \ \ / /
> \ \ / /
> \ \ / /
> \ -------------------- / ) beta
> ----------------------/------------
> I am not sure that the angles alplha and beta will compansate each other.
> Additionaly it doesn't look like the right of doing this.
>
> Any resources and ideas would help.
>
> Thank you.
>
> /*===============================================
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-- 
"One of the best-known folk theorems of software engineering is that
60% to 75% of conventional software projects are either never
completed or rejected by their intended users. If that range is
anywhere near true (and I've never met a manager of any experience
who disputes it) then more projects than not are being aimed at goals
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For advanced 3D graphics Performer + OpenGL based examples and tutors:
http://www.dorbie.com/

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