POV-Ray: Newsgroups: povray.windows: Creating 2D projections of a 3D mass?

POV-Ray : Newsgroups : povray.windows : Creating 2D projections of a 3D mass?		Server Time 23 Nov 2024 15:59:22 EST (-0500)

From: Meenal
Subject: Creating 2D projections of a 3D mass?
Date: 9 Jun 2005 00:05:01
Message: <web.42a7bfdfe478dc9b9199eef0@news.povray.org>

Hi,

I am creating 2D projections of a 3D object by shining a light source
through it. I want projections at various angles and therefore, I rotate
the object to get different projections. The projections look good. My
question is on the kind of interpolation that POV applies while creating
the projection, i.e. when in taking a projection of ab object from a
non-orthogonal views, you get non-integer values of pixels; what and how
does POV interpolate those non-integer pixel values? To their nearest
neighbor?

Meenal

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From: Terrainer
Subject: Re: Creating 2D projections of a 3D mass?
Date: 4 Jul 2005 21:55:01
Message: <web.42c9e84973c58485fa01bfc0@news.povray.org>

"Meenal" <mee### [at] studentumassedu> wrote:
> Hi,
>
> I am creating 2D projections of a 3D object by shining a light source
> through it. I want projections at various angles and therefore, I rotate
> the object to get different projections. The projections look good. My
> question is on the kind of interpolation that POV applies while creating
> the projection, i.e. when in taking a projection of ab object from a
> non-orthogonal views, you get non-integer values of pixels; what and how
> does POV interpolate those non-integer pixel values? To their nearest
> neighbor?
>
> Meenal

I think you want the advice in Pov-Ray help section
5.2.6.4  Anti-Aliasing Options.
Good luck.

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