POV-Ray: Newsgroups: povray.binaries.images: focal blur not what I expect

POV-Ray : Newsgroups : povray.binaries.images : focal blur not what I expect - nonblur.jpg [0/1]		Server Time 3 Nov 2024 01:05:54 EDT (-0400)

From: Sander
Subject: focal blur not what I expect - nonblur.jpg [0/1]
Date: 17 Aug 2000 11:14:47
Message: <MPG.14061f75320d60f2989683@news.povray.org>

[This followup was posted to povray.binaries.images and a copy was sent to the cited
author.]

I don't seem to get the p-p focal blur working properly: the parameters I 
used were: {field_start 20000, field_depth 1, max_blur 4, keep_aa 0.3}. 
The large field_start depends in my code on the generally large number I 
use for everything. A field_depth of 1000 makes no visible difference 
with a value of 1. Should it be that way? Also, the field_start isn't 
where it should be...
These two images are slices from a larger one, without and with post-
processing blur. I wonder why there is such a sudden transition at the 
top from non-blurred to blurred (it looks very artificial), while at the 
bottom the transition from blurred to non-blurred is smooth. 
What do I miss?
-- 
Regards,  Sander

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From: Sander
Subject: focal blur not what I expect - nonblur.jpg [1/1]
Date: 17 Aug 2000 11:14:52
Message: <MPG.14061f763e57a6f989684@news.povray.org>

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From: Sander
Subject: focal blur not what I expect - blur.jpg [1/1]
Date: 17 Aug 2000 11:14:55
Message: <MPG.14061f763e57a6f989685@news.povray.org>

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Preview of image 'blur.jpg'

From: Nathan Kopp
Subject: Re: focal blur not what I expect - nonblur.jpg [0/1]
Date: 17 Aug 2000 20:10:00
Message: <399c7ed8$1@news.povray.org>

"Sander" <san### [at] stolscom> wrote...

> These two images are slices from a larger one, without and with post-
> processing blur. I wonder why there is such a sudden transition at the 
> top from non-blurred to blurred (it looks very artificial), while at the 
> bottom the transition from blurred to non-blurred is smooth. 
> What do I miss?

Looks like a bug to me.  :-(

-Nathan

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From: Steve
Subject: Re: focal blur not what I expect - nonblur.jpg [0/1]
Date: 18 Aug 2000 17:16:27
Message: <slrn8pqiho.2b7.steve@zero-pps.localdomain>

On Thu, 17 Aug 2000 20:10:43 -0400, Nathan Kopp wrote:
>Looks like a bug to me.  :-(
>
>-Nathan

Another werid char set.

text/plain; charset="Windows-1252"


-- 
Cheers
Steve              email mailto:ste### [at] zeroppsuklinuxnet

%HAV-A-NICEDAY Error not enough coffee  0 pps. 

web http://www.zeropps.uklinux.net/

or  http://start.at/zero-pps

  3:25pm  up 15:01,  2 users,  load average: 1.07, 1.02, 1.00

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From: GrimDude
Subject: Re: focal blur not what I expect - nonblur.jpg [0/1]
Date: 24 Aug 2000 04:05:59
Message: <39a4d767@news.povray.org>

A font specific to the Netherlands? :)

Grim
"Steve" <ste### [at] zeroppsuklinuxnet> wrote in message
news:slr### [at] zero-ppslocaldomain...
> On Thu, 17 Aug 2000 20:10:43 -0400, Nathan Kopp wrote:
> >Looks like a bug to me.  :-(
> >
> >-Nathan
>
> Another werid char set.
>
> text/plain; charset="Windows-1252"
>
>
> --
> Cheers
> Steve              email mailto:ste### [at] zeroppsuklinuxnet
>
> %HAV-A-NICEDAY Error not enough coffee  0 pps.
>
> web http://www.zeropps.uklinux.net/
>
> or  http://start.at/zero-pps
>
>   3:25pm  up 15:01,  2 users,  load average: 1.07, 1.02, 1.00

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