Just wanted to see if POV 3.1 could do the near-endless reflection thing
between two mirrors...

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Mahalis wrote:

> Just wanted to see if POV 3.1 could do the near-endless reflection thing
> between two mirrors...
>
>                   Name: mirrors.png
>    mirrors.png    Type: PNG Image (image/x-png)
>               Encoding: x-uuencode

You can, but you need to bump max-trace-level up quite a bit, otherwise you
get black mirrors after a few iterations.


--
Josh English
eng### [at] spiritonecom
The POV-Ray Cyclopedia http://www.spiritone.com/~english/cyclopedia/

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Really? It seemed to me I was getting white mirrors after a few iterations
(I used reflection 0.975).

"Josh English" <eng### [at] spiritonecom> wrote in message
news:3BA39328.BC5F8772@spiritone.com...
> Mahalis wrote:
>
> > Just wanted to see if POV 3.1 could do the near-endless reflection thing
> > between two mirrors...
> >
> >                   Name: mirrors.png
> >    mirrors.png    Type: PNG Image (image/x-png)
> >               Encoding: x-uuencode
>
> You can, but you need to bump max-trace-level up quite a bit, otherwise
you
> get black mirrors after a few iterations.
>
>
> --
> Josh English
> eng### [at] spiritonecom
> The POV-Ray Cyclopedia http://www.spiritone.com/~english/cyclopedia/
>
>

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"Mahalis" <don### [at] fakeycom> wrote in message
news:3ba3ebbe$1@news.povray.org...
> Really? It seemed to me I was getting white mirrors after a few iterations
> (I used reflection 0.975).

That happens because diffuse 0.6, being the default anyway, will saturate
with the mirror pigment after a few bounces of rays.

Bob H.

> "Josh English" <eng### [at] spiritonecom> wrote in message
> news:3BA39328.BC5F8772@spiritone.com...
> > Mahalis wrote:
> >
> > > Just wanted to see if POV 3.1 could do the near-endless reflection
thing
> > > between two mirrors...
> >
> > You can, but you need to bump max-trace-level up quite a bit, otherwise
> you
> > get black mirrors after a few iterations.

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Ah yes. I was using a white pigment on the mirrors. So should I increase or
decrease the diffuse?
"Bob H." <omn### [at] msncom> wrote in message
news:3ba4524f@news.povray.org...
> "Mahalis" <don### [at] fakeycom> wrote in message
> news:3ba3ebbe$1@news.povray.org...
> > Really? It seemed to me I was getting white mirrors after a few
iterations
> > (I used reflection 0.975).
>
> That happens because diffuse 0.6, being the default anyway, will saturate
> with the mirror pigment after a few bounces of rays.
>
> Bob H.
>
> > "Josh English" <eng### [at] spiritonecom> wrote in message
> > news:3BA39328.BC5F8772@spiritone.com...
> > > Mahalis wrote:
> > >
> > > > Just wanted to see if POV 3.1 could do the near-endless reflection
> thing
> > > > between two mirrors...
> > >
> > > You can, but you need to bump max-trace-level up quite a bit,
otherwise
> > you
> > > get black mirrors after a few iterations.
>
>
>

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"Mahalis" <don### [at] fakeycom> wrote in message
news:3ba492e3$1@news.povray.org...
> Ah yes. I was using a white pigment on the mirrors. So should I increase
or
> decrease the diffuse?

My guess would be to use less of a diffuse, so that light doesn't affect the
mirror as much...but then again, I never really tried doing what you're
doing, so that's just a guess :-)

-Ian

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Perfect mirror has:

finish{ ambient 0 diffuse 0 reflection 1 }

 - Nikodemus

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Mahalis wrote:
> 
> Just wanted to see if POV 3.1 could do the near-endless reflection thing
> between two mirrors...
> 
>  [Image]

"Mirrahs?" You from New England?  : )

I did this once way back when with Pov 2.1...it makes for some neat
effects if you use two perfect reflecting planes (one behind the camera
and one behind the object) and leave the rest of the scene completely
black. The single object will fade off into copy after copy of itself.

I'd suggest a max trace level of at least 10, depending on resolution.
That should be good enough for 800x600

-- 
Derek Stark

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Nope. I just lahk messin' wit woids.
"D. Stark - eSN" <dms### [at] esupportnowcom> wrote in message
news:3BA60551.889F3C69@esupportnow.com...
> Mahalis wrote:
> >
> > Just wanted to see if POV 3.1 could do the near-endless reflection thing
> > between two mirrors...
> >
> >  [Image]
>
> "Mirrahs?" You from New England?  : )
>
> I did this once way back when with Pov 2.1...it makes for some neat
> effects if you use two perfect reflecting planes (one behind the camera
> and one behind the object) and leave the rest of the scene completely
> black. The single object will fade off into copy after copy of itself.
>
> I'd suggest a max trace level of at least 10, depending on resolution.
> That should be good enough for 800x600
>
> --
> Derek Stark

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Mahalis wrote:
> 
> Ah yes. I was using a white pigment on the mirrors. So should I increase or
> decrease the diffuse?

Not necessarily. But remember: Mirrors are _black_!

Markus

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