Re: non orthogonal image generation

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Glenn Waldron (gwaldron++at++galileo.hpc.org)
Tue, 25 Jun 1996 08:22:46 -0400

On Jun 25, 11:58, Alex Heidet wrote:
> Subject: non orthogonal image generation
>
>
> One of the limitations of Permormer 1.x was that the generated image was
> orthogonal to the view-point, and that therefore you had to show it in a
plane
> orthogonal to the real viewer.
> Has this feature been changed in performer 2.0? Is it possible to generate
> non-orthogonal viewing frustrum?
>
> to illustrate:
>
> Eye Eye
> /\ /\
> / \ / \
> /____\ / \
> Virtual and physical /_ _---
> projection plane Twisted virtual and
> Physical plane.

Actually you can do this is Perf 1.2, as well as 2.0; to create an
off-axis viewing frustum use pfMakePerspFrust() or pfChannel::makePersp().
Glenn.

-- 
Glenn A. Waldron - Sr. Programmer   USC/Information Sciences Institute
email: gwaldron++at++isi.edu     voice: 703.812.4732     beep: 800.507.5003
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