POV-Ray : Newsgroups : povray.binaries.images : camera lens - GI + blured reflec + problem :) (76kbbu) Server Time
17 Aug 2024 00:13:38 EDT (-0400)
  camera lens - GI + blured reflec + problem :) (76kbbu) (Message 5 to 14 of 14)  
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From: Hartmut Wagener
Subject: Re: camera lens - GI + blured reflec + problem :) (76kbbu)
Date: 29 Dec 2001 04:56:14
Message: <3c2d933e$1@news.povray.org>
The problem i see is in the darker parts of the reflection. It seems to be
"squared". After 3 days of render, this must be boring ... :)

Hartmut

"Rick [Kitty5]" <ric### [at] kitty5com> schrieb im Newsbeitrag
news:3c2cdb7e@news.povray.org...
> 3 day render, an old model of a standard 35mm camera lens, 99% rad
lighting
> (1 small very dim 3x3 area light)
>
> blurred reflection created using a fine bump on ground plain (same
settings
> as image I posted a few days back)
>
> spot the problem? I have no idea what caused that. nothing that an average
> blur in psp wont fix mind
>
> will post the post processed versions when I have it if any one is
> interested
> --
>
> Rick
>
> Kitty5 WebDesign - http://Kitty5.com
> POV-Ray News & Resources - http://Povray.co.uk
> TEL : +44 (01270) 501101 - FAX : +44 (01270) 251105 - ICQ : 15776037
>
> PGP Public Key
> http://pgpkeys.mit.edu:11371/pks/lookup?op=get&search=0x231E1CEA
>
>
>


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From: Rick [Kitty5]
Subject: Re: camera lens - GI + blured reflec + problem :) (76kbbu)
Date: 29 Dec 2001 06:31:26
Message: <3c2da98e$1@news.povray.org>
> You know, now that I look at it, the glass plate on the right lens looks a
> bit too opaque to me.  Is the scene lighting doing that?

yeah - that's the huge ambient 1 sphere I lit the scene with's reflection


--

Rick

Kitty5 WebDesign - http://Kitty5.com
POV-Ray News & Resources - http://Povray.co.uk
TEL : +44 (01270) 501101 - FAX : +44 (01270) 251105 - ICQ : 15776037

PGP Public Key
http://pgpkeys.mit.edu:11371/pks/lookup?op=get&search=0x231E1CEA


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From: Rick [Kitty5]
Subject: Re: camera lens - GI + blured reflec + problem :) (76kbbu)
Date: 29 Dec 2001 06:31:27
Message: <3c2da98f$1@news.povray.org>
> The problem i see is in the darker parts of the reflection. It seems to be
> "squared". After 3 days of render, this must be boring ... :)

yes - if you brighten you monitor up its really noticeable - and I have no
idea what caused it - as all my test renders didn't show anything like it


--

Rick

Kitty5 WebDesign - http://Kitty5.com
POV-Ray News & Resources - http://Povray.co.uk
TEL : +44 (01270) 501101 - FAX : +44 (01270) 251105 - ICQ : 15776037

PGP Public Key
http://pgpkeys.mit.edu:11371/pks/lookup?op=get&search=0x231E1CEA


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From: Rick [Kitty5]
Subject: Re: camera lens - GI + blured reflec + problem :) (76kbbu)
Date: 29 Dec 2001 06:31:28
Message: <3c2da990$1@news.povray.org>
> Looks awesome!  I'm just curious, if you put the POV-camera by one of
those
> lenses, would it give a sort of "camera" effect (lens flares, etc)?

yes and no

the elements I made are rough approximations of the real things, mainly so
they look correct from the front. if I had made them a little more precisely
you would be able to look through them and get a semi meaningful result.

'real' lens flares are quite easy to achieve

http://news.povray.org/povray.binaries.images/11313/

--

Rick

Kitty5 WebDesign - http://Kitty5.com
POV-Ray News & Resources - http://Povray.co.uk
TEL : +44 (01270) 501101 - FAX : +44 (01270) 251105 - ICQ : 15776037

PGP Public Key
http://pgpkeys.mit.edu:11371/pks/lookup?op=get&search=0x231E1CEA


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From: Ian Burgmyer
Subject: Re: camera lens - GI + blured reflec + problem :) (76kbbu)
Date: 30 Dec 2001 23:19:50
Message: <3c2fe766$1@news.povray.org>
"Rick [Kitty5]" <ric### [at] kitty5com> wrote in message
news:3c2da98e$1@news.povray.org...
> > You know, now that I look at it, the glass plate on the right lens looks
a
> > bit too opaque to me.  Is the scene lighting doing that?
>
> yeah - that's the huge ambient 1 sphere I lit the scene with's reflection

Ohh, okay...figured.

--
#macro S(M)cylinder{E(M)<A,C,5>,<B,D,5>,.1,15}#end#macro E(P)#if(div(P,16)
)#declare B=-1;#declare D=-2;#end#if(div(P,32))#declare A=1;#declare C=0;#
end#if(div(P,64))#declare B=-1;#declare D=0;#end#if(div(P,128))#declare A=
1;#declare C=2;#end#end blob{S(192)S(96)S(48)pigment{rgb 8*z}} /** Ian **/


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From: Ian Burgmyer
Subject: Re: camera lens - GI + blured reflec + problem :) (76kbbu)
Date: 30 Dec 2001 23:21:34
Message: <3c2fe7ce$1@news.povray.org>
"Rick [Kitty5]" <ric### [at] kitty5com> wrote in message
news:3c2da98f$1@news.povray.org...
> > The problem i see is in the darker parts of the reflection. It seems to
be
> > "squared". After 3 days of render, this must be boring ... :)
>
> yes - if you brighten you monitor up its really noticeable - and I have no
> idea what caused it - as all my test renders didn't show anything like it

Try putting an additional light behind the camera to see if that clears it
up at all.  It seems like the shadows are getting "blocked up" by the "grip"
of the lens.

--
#macro S(M)cylinder{E(M)<A,C,5>,<B,D,5>,.1,15}#end#macro E(P)#if(div(P,16)
)#declare B=-1;#declare D=-2;#end#if(div(P,32))#declare A=1;#declare C=0;#
end#if(div(P,64))#declare B=-1;#declare D=0;#end#if(div(P,128))#declare A=
1;#declare C=2;#end#end blob{S(192)S(96)S(48)pigment{rgb 8*z}} /** Ian **/


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From: Ian Burgmyer
Subject: Re: camera lens - GI + blured reflec + problem :) (76kbbu)
Date: 30 Dec 2001 23:24:59
Message: <3c2fe89b@news.povray.org>
"Rick [Kitty5]" <ric### [at] kitty5com> wrote in message
news:3c2da990$1@news.povray.org...
> the elements I made are rough approximations of the real things, mainly so
> they look correct from the front. if I had made them a little more
precisely
> you would be able to look through them and get a semi meaningful result.
>
> 'real' lens flares are quite easy to achieve
>
> http://news.povray.org/povray.binaries.images/11313/

Yeah, I remember that post (I replied to it a couple of times).  That's
exactly what I was thinking of when I posed the question, actually :-)

Would you be able to post the Moray source for the first lens image in
moray.binaries?  I'm interesting in seeing what kind of setup you have.

--
#macro S(M)cylinder{E(M)<A,C,5>,<B,D,5>,.1,15}#end#macro E(P)#if(div(P,16)
)#declare B=-1;#declare D=-2;#end#if(div(P,32))#declare A=1;#declare C=0;#
end#if(div(P,64))#declare B=-1;#declare D=0;#end#if(div(P,128))#declare A=
1;#declare C=2;#end#end blob{S(192)S(96)S(48)pigment{rgb 8*z}} /** Ian **/


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From: Rick [Kitty5]
Subject: Re: camera lens - GI + blured reflec + problem :) (76kbbu)
Date: 31 Dec 2001 08:44:51
Message: <3c306bd3$1@news.povray.org>
"Ian Burgmyer" <the### [at] yahoocom> wrote in message
news:3c2fe89b@news.povray.org...
> "Rick [Kitty5]" <ric### [at] kitty5com> wrote in message
> news:3c2da990$1@news.povray.org...
> > the elements I made are rough approximations of the real things, mainly
so
> > they look correct from the front. if I had made them a little more
> precisely
> > you would be able to look through them and get a semi meaningful result.
> >
> > 'real' lens flares are quite easy to achieve
> >
> > http://news.povray.org/povray.binaries.images/11313/
>
> Yeah, I remember that post (I replied to it a couple of times).  That's
> exactly what I was thinking of when I posed the question, actually :-)
>
> Would you be able to post the Moray source for the first lens image in
> moray.binaries?  I'm interesting in seeing what kind of setup you have.

which scene - the camera lens one, or the 'real lens flare' ?


--

Rick

Kitty5 WebDesign - http://Kitty5.com
POV-Ray News & Resources - http://Povray.co.uk
TEL : +44 (01270) 501101 - FAX : +44 (01270) 251105 - ICQ : 15776037

PGP Public Key
http://pgpkeys.mit.edu:11371/pks/lookup?op=get&search=0x231E1CEA


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From: François Dispot
Subject: Re: camera lens - GI + blured reflec + problem :) (76kbbu)
Date: 2 Jan 2002 13:38:23
Message: <3C335309.80705@club-internet.fr>
Rick [Kitty5] wrote:

> spot the problem?


IMHO using a Leica Summicron-M asph. f/1.4 35mm would fix nearly anything!

-- 

       __  __ __  __  _
|  | /  \  /  / |_  /  |/
\/\/ \__/ /_ /_ |__ \_ |\


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From: Ian Burgmyer
Subject: Re: camera lens - GI + blured reflec + problem :) (76kbbu)
Date: 3 Jan 2002 23:44:00
Message: <3c353310@news.povray.org>
"Rick [Kitty5]" <ric### [at] kitty5com> wrote in message
news:3c306bd3$1@news.povray.org...
> > Would you be able to post the Moray source for the first lens image in
> > moray.binaries?  I'm interesting in seeing what kind of setup you have.
>
> which scene - the camera lens one, or the 'real lens flare' ?

The "real lens flare" one...but the camera lens one would be nice in
addition to that ;-p

--
#macro S(M)cylinder{E(M)<A,C,5>,<B,D,5>,.1,15}#end#macro E(P)#if(div(P,16)
)#declare B=-1;#declare D=-2;#end#if(div(P,32))#declare A=1;#declare C=0;#
end#if(div(P,64))#declare B=-1;#declare D=0;#end#if(div(P,128))#declare A=
1;#declare C=2;#end#end blob{S(192)S(96)S(48)pigment{rgb 8*z}} /** Ian **/


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