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From: Apache
Subject: Re: Abstract - focal blur + area light + radiosity(68 kb)
Date: 12 Apr 2002 22:00:14
Message: <3cb7912e@news.povray.org>
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I like the picture. But what about getting rid of that grainy look at the
upper edge of the yellow pole? I know it's a focal blur issue. Will
increasing the amount of samples deal with the problem?
--
Apache
http://geitenkaas.dns2go.com/experiments/
apa### [at] yahoo com
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From: Marc Jacquier
Subject: Re: Abstract - focal blur + area light + radiosity(68 kb)
Date: 13 Apr 2002 01:35:25
Message: <3cb7c39d$1@news.povray.org>
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Hey, don't just look at the pictures, read the text as well :-)
He was just asking questions about that!
Marc
3cb7912e@news.povray.org...
> I like the picture. But what about getting rid of that grainy look at the
> upper edge of the yellow pole? I know it's a focal blur issue. Will
> increasing the amount of samples deal with the problem?
>
> --
> Apache
> http://geitenkaas.dns2go.com/experiments/
> apa### [at] yahoocom
>
>
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From: Apache
Subject: Re: Abstract - focal blur + area light + radiosity(68 kb)
Date: 13 Apr 2002 02:32:34
Message: <3cb7d102$1@news.povray.org>
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I should get some sleep. I'm to greedy. I want to see pretty pictures!!!
--
Apache
http://geitenkaas.dns2go.com/experiments/
apa### [at] yahoocom
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From: Marc Jacquier
Subject: Re: Abstract - focal blur + area light + radiosity(68 kb)
Date: 13 Apr 2002 03:11:27
Message: <3cb7da1f$1@news.povray.org>
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lol good night, pretty pictures are what POV is aimed to ;-)
Marc
3cb7d102$1@news.povray.org...
> I should get some sleep. I'm to greedy. I want to see pretty pictures!!!
>
> --
> Apache
> http://geitenkaas.dns2go.com/experiments/
> apa### [at] yahoocom
>
>
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On Sat, 13 Apr 2002 01:44:13 +0200, "Peter Hertel"
<peter@hertel**NOSPAM**.no> wrote:
>How do I smooth the blur more? Tried to increase blur_samples to 30 but it
>didn't help at all..
Decrease variance and increase confidence.
The number of samples you supply is the *maximum* number POV-Ray will
shoot. However, to speed things up, it employs some statistics.
Confidence shows how 'confident' POV-Ray should be that the result is
smooth before it stops shooting rays, and is a value from 0 to 1
representing 0% to 100%. Variance shows how little the next samples
should be expected to contribute to the smoothness before POV-Ray
stops shooting rays, and is a positive value, the lower, the better.
Try this out, slowly increasing the amount of Focal_Blur_Accuracy
until you get a satisfying result. Use the macro instead of specifying
confidence and variance, as in:
#macro Focal_Blur_Accuracy (FB_Accuracy)
confidence 1-pow(10,-FB_Accuracy)
variance pow(10,-FB_Accuracy-2)
#end
camera {
[something]
Focal_Blur_Accuracy(1)
}
See if it helps any. Also, try Francois' Automatic DOF macro on
www.wozzeck.net .
Good luck.
Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] vipbg
TAG e-mail : pet### [at] tagpovrayorg
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From: Peter Hertel
Subject: Re: Abstract - focal blur + area light + radiosity(68 kb)
Date: 13 Apr 2002 10:41:39
Message: <3cb843a3@news.povray.org>
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> I want to see pretty pictures!!!
what do you say?!! that my picture aren't pretty?!! :)
just kidding, I'll post the better blurred version when I get the time to
render the full pic..
--
_.-=^=-._.-=[ Peter ]=-._.-=^=-._
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From: Peter Hertel
Subject: Re: Abstract - focal blur + area light + radiosity(68 kb)
Date: 13 Apr 2002 10:41:44
Message: <3cb843a8@news.povray.org>
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> Try this out, slowly increasing the amount of Focal_Blur_Accuracy
> until you get a satisfying result. Use the macro instead of specifying
> confidence and variance, as in:
Thanks a lot!
I don't have the time to fiddle with it right now..so I just did:
blur_samples 100
Focal_Blur_Accuracy(9)
:)
Attatched two details of the new blur, I'll render the full picture next
week..
Have a nice weekend!
_.-=^=-._.-=[ Peter ]=-._.-=^=-._
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Attachments:
Download 'P_blur02_detail.jpg' (6 KB)
Download 'P_blur02_detail2.jpg' (4 KB)
Preview of image 'P_blur02_detail.jpg'
Preview of image 'P_blur02_detail2.jpg'
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From: Peter Hertel
Subject: Re: Abstract - focal blur + area light + radiosity(68 kb)
Date: 13 Apr 2002 10:42:04
Message: <3cb843bc@news.povray.org>
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> I like your image Peter
thanks :) just have to sort out that focal blur stuff..
> it has vibes of Venus and Mars, (I'm thinking
> about the Wings album cover).
sorry..didn't catch that one..?
_.-=^=-._.-=[ Peter ]=-._.-=^=-._
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From: GrimDude
Subject: Re: Abstract - focal blur + area light + radiosity(68 kb)
Date: 13 Apr 2002 19:35:42
Message: <3cb8c0ce$1@news.povray.org>
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It doesn't look like your 'center' question was properly answered, though I think
Peter's suggestion will certainly help.
Adjust your focal point for the center you desire, then adjust aperture to achieve the
impression you desire.
I hope that helps.
Grim
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On Sat, 13 Apr 2002 16:37:58 +0200, "Peter Hertel"
<peter@hertel**NOSPAM**.no> wrote:
>Thanks a lot!
Anytime :)
>I don't have the time to fiddle with it right now..so I just did:
>blur_samples 100
>Focal_Blur_Accuracy(9)
You mean I actually didn't mess it up?! Sheesh...
Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] vipbg
TAG e-mail : pet### [at] tagpovrayorg
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