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From: Warp
Subject: A different approach to blurred reflection (PNG, 80kbu)
Date: 19 Oct 2001 03:59:56
Message: <3bcfdd7a@news.povray.org>
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I tried a different approach to blurred reflection. Didn't work extremely
well (which isn't a surprise knowing the algorithm...). Sorry for the PNG,
but I didn't want JPG artifacts to destroy anything, and it isn't that big.
Now you can start guessing how I did it. As you can see, I did not use
antialiasing (I deliberately rendered the image without antialiasing to show
that I did not use the antialiasing trick). And yes, I rendered it completely
with POV-Ray 3.5beta in one run (ie, I did not use any external programs, just
POV-Ray and one single .pov file).
You can also watch for what is wrong in the reflection... Something that
just cannot be corrected with this technique :)
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Attachments:
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Preview of image 'brtest.png'
![brtest.png](/povray.binaries.images/attachment/%3C3bcfdd7a%40news.povray.org%3E/brtest.png?ttop=443840&toff=10250&preview=1)
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From: ARTis
Subject: Re: A different approach to blurred reflection (PNG, 80kbu)
Date: 19 Oct 2001 04:13:23
Message: <3bcfe0a3@news.povray.org>
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> You can also watch for what is wrong in the reflection... Something that
> just cannot be corrected with this technique :)
I think the shadows in the reflection are wrong.
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From: Nekar Xenos
Subject: Re: A different approach to blurred reflection (PNG, 80kbu)
Date: 19 Oct 2001 04:42:41
Message: <3bcfe781@news.povray.org>
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Different sized transparent reflective spheres?
- Nekar
"Warp" <war### [at] tag povray org> wrote in message news:3bcfdd7a@news.povray.org...
> I tried a different approach to blurred reflection. Didn't work extremely
> well (which isn't a surprise knowing the algorithm...). Sorry for the PNG,
> but I didn't want JPG artifacts to destroy anything, and it isn't that big.
>
> Now you can start guessing how I did it. As you can see, I did not use
> antialiasing (I deliberately rendered the image without antialiasing to show
> that I did not use the antialiasing trick). And yes, I rendered it completely
> with POV-Ray 3.5beta in one run (ie, I did not use any external programs, just
> POV-Ray and one single .pov file).
> You can also watch for what is wrong in the reflection... Something that
> just cannot be corrected with this technique :)
>
>
--------------------------------------------------------------------------------
>
>
> --
> #macro N(D,I)#if(I<6)cylinder{M()#local D[I]=div(D[I],104);M().5,2pigment{
> rgb M()}}N(D,(D[I]>99?I:I+1))#end#end#macro M()<mod(D[I],13)-6,mod(div(D[I
> ],13),8)-3,10>#end blob{N(array[6]{11117333955,
> 7382340,3358,3900569407,970,4254934330},0)}// - Warp -
---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.282 / Virus Database: 150 - Release Date: 2001/09/25
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From: Warp
Subject: Re: A different approach to blurred reflection (PNG, 80kbu)
Date: 19 Oct 2001 05:08:35
Message: <3bcfed93@news.povray.org>
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ARTis <art### [at] aaa apollo lv> wrote:
: I think the shadows in the reflection are wrong.
No, not really. (I mean that they aren't any wronger than anything else.)
--
#macro N(D,I)#if(I<6)cylinder{M()#local D[I]=div(D[I],104);M().5,2pigment{
rgb M()}}N(D,(D[I]>99?I:I+1))#end#end#macro M()<mod(D[I],13)-6,mod(div(D[I
],13),8)-3,10>#end blob{N(array[6]{11117333955,
7382340,3358,3900569407,970,4254934330},0)}// - Warp -
Post a reply to this message
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From: Warp
Subject: Re: A different approach to blurred reflection (PNG, 80kbu)
Date: 19 Oct 2001 05:08:53
Message: <3bcfeda5@news.povray.org>
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Nekar Xenos <j-p### [at] citywalk co za> wrote:
: Different sized transparent reflective spheres?
Not even close... :)
--
#macro N(D,I)#if(I<6)cylinder{M()#local D[I]=div(D[I],104);M().5,2pigment{
rgb M()}}N(D,(D[I]>99?I:I+1))#end#end#macro M()<mod(D[I],13)-6,mod(div(D[I
],13),8)-3,10>#end blob{N(array[6]{11117333955,
7382340,3358,3900569407,970,4254934330},0)}// - Warp -
Post a reply to this message
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From: Nekar Xenos
Subject: Re: A different approach to blurred reflection (PNG, 80kbu)
Date: 19 Oct 2001 05:23:55
Message: <3bcff12b@news.povray.org>
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A reflective sphere inside a slightly larger transparent sphere filled with
scattering media?
- Nekar
"Warp" <war### [at] tag povray org> wrote in message news:3bcfeda5@news.povray.org...
> Nekar Xenos <j-p### [at] citywalk co za> wrote:
> : Different sized transparent reflective spheres?
>
> Not even close... :)
>
> --
> #macro N(D,I)#if(I<6)cylinder{M()#local D[I]=div(D[I],104);M().5,2pigment{
> rgb M()}}N(D,(D[I]>99?I:I+1))#end#end#macro M()<mod(D[I],13)-6,mod(div(D[I
> ],13),8)-3,10>#end blob{N(array[6]{11117333955,
> 7382340,3358,3900569407,970,4254934330},0)}// - Warp -
---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.282 / Virus Database: 150 - Release Date: 2001/09/25
Post a reply to this message
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in news:3bcfdd7a@news.povray.org Warp wrote:
> Now you can start guessing how I did it.
a clever setup of flat and spherical mirrors and using focal blurr?
Ingo
--
Photography: http://members.home.nl/ingoogni/
Pov-Ray : http://members.home.nl/seed7/
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From: Christoph Hormann
Subject: Re: A different approach to blurred reflection (PNG, 80kbu)
Date: 19 Oct 2001 06:30:30
Message: <3BD000DB.B5AD14C0@gmx.de>
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Warp wrote:
>
> [...]
> You can also watch for what is wrong in the reflection... Something that
> just cannot be corrected with this technique :)
>
The reflection geometry looks a bit wrong, i would say an image map
applied to the sphere...
Christoph
--
Christoph Hormann <chr### [at] gmx de>
IsoWood include, radiosity tutorial, TransSkin and other
things on: http://www.schunter.etc.tu-bs.de/~chris/
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From: Warp
Subject: Re: A different approach to blurred reflection (PNG, 80kbu)
Date: 19 Oct 2001 07:13:31
Message: <3bd00adb@news.povray.org>
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Nekar Xenos <j-p### [at] citywalk co za> wrote:
: A reflective sphere inside a slightly larger transparent sphere filled with
: scattering media?
Nope, nothing like that.
--
#macro N(D,I)#if(I<6)cylinder{M()#local D[I]=div(D[I],104);M().5,2pigment{
rgb M()}}N(D,(D[I]>99?I:I+1))#end#end#macro M()<mod(D[I],13)-6,mod(div(D[I
],13),8)-3,10>#end blob{N(array[6]{11117333955,
7382340,3358,3900569407,970,4254934330},0)}// - Warp -
Post a reply to this message
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From: Warp
Subject: Re: A different approach to blurred reflection (PNG, 80kbu)
Date: 19 Oct 2001 07:14:22
Message: <3bd00b0e@news.povray.org>
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ingo <ing### [at] home nl> wrote:
: a clever setup of flat and spherical mirrors and using focal blurr?
You are getting a bit closer, but not quite.
--
#macro N(D,I)#if(I<6)cylinder{M()#local D[I]=div(D[I],104);M().5,2pigment{
rgb M()}}N(D,(D[I]>99?I:I+1))#end#end#macro M()<mod(D[I],13)-6,mod(div(D[I
],13),8)-3,10>#end blob{N(array[6]{11117333955,
7382340,3358,3900569407,970,4254934330},0)}// - Warp -
Post a reply to this message
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