POV-Ray : Newsgroups : povray.general : Spotlight modification suggestion... Server Time
1 Nov 2024 04:13:10 EDT (-0400)
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From: Equiprawn
Subject: Spotlight modification suggestion...
Date: 9 Sep 2000 11:04:05
Message: <39ba5165@news.povray.org>
Hi,

I have a suggestion for a small (I think) modification to spotlights in
future versions of Povray. At the moment, they only originate from points
(clearly demonstratable if you put a spotlight in media). If would be a
great improvement if you could specify a starting radius for the light beam.

I have posted an example image in p.b.i (rendered with Macromedia Extreme
3D) to help explain.

Would this be possible? Would it be a difficult modification?

Equiprawn


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From: Nathan Kopp
Subject: Re: Spotlight modification suggestion...
Date: 9 Sep 2000 11:07:59
Message: <39ba524f$1@news.povray.org>
"Equiprawn" <equ### [at] tinetie> wrote...
> Hi,
>
> I have a suggestion for a small (I think) modification to spotlights in
> future versions of Povray. At the moment, they only originate from points
> (clearly demonstratable if you put a spotlight in media). If would be a
> great improvement if you could specify a starting radius for the light
beam.
>
> I have posted an example image in p.b.i (rendered with Macromedia Extreme
> 3D) to help explain.

You can currently do something like this with MegaPov using
"projected_through".  I'm pretty sure that you could use projected_through
with a plane that is in the spotlight's path, and the light would start at
the plane, instead of at the light's origin.

-Nathan


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From: Equiprawn
Subject: Re: Spotlight modification suggestion...
Date: 9 Sep 2000 19:11:29
Message: <39bac3a1@news.povray.org>
Hey,

> You can currently do something like this with MegaPov using
> "projected_through".  I'm pretty sure that you could use projected_through
> with a plane that is in the spotlight's path, and the light would start at
> the plane, instead of at the light's origin.

Sounds workable. I haven't really had much of a look at the new Megapov (bit
of a Moray stickler I'm afraid). But if a starting radius was just
implemented as a standard feature, it would probably be easier to use.

Equiprawn


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