POV-Ray : Newsgroups : povray.binaries.images : RSOCP scene Server Time
1 Aug 2024 04:12:39 EDT (-0400)
  RSOCP scene (Message 1 to 7 of 7)  
From: fidos
Subject: RSOCP scene
Date: 1 Feb 2009 14:50:01
Message: <web.4985fbb9846d15dc4f44ad660@news.povray.org>
Hello,

3 hours with mcpov for a RSOCP scene.

Regards,
Fidos


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From: triple r
Subject: Re: RSOCP scene
Date: 1 Feb 2009 15:05:01
Message: <web.4985fff2334f43c1ef2b9ba40@news.povray.org>
"fidos" <fid### [at] wanadoofr> wrote:
> 3 hours with mcpov for a RSOCP scene.

Neat.  Three hours, eh?  I'll assume you need portals to get it to render that
quickly, even on a quad-core.  How do you set that up for toroidal lights
though?  Do you bound it by a sphere?  Do you approximate the tori with a mesh?
 Or maybe you have other tricks up your sleeve...

 - Ricky


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From: fidos
Subject: Re: RSOCP scene
Date: 1 Feb 2009 15:45:01
Message: <web.498609b1334f43c14f44ad660@news.povray.org>
"triple_r" <nomail@nomail> wrote:
> "fidos" <fid### [at] wanadoofr> wrote:
> > 3 hours with mcpov for a RSOCP scene.
>
> Neat.  Three hours, eh?  I'll assume you need portals to get it to render that
> quickly, even on a quad-core.  How do you set that up for toroidal lights
> though?  Do you bound it by a sphere?  Do you approximate the tori with a mesh?
>  Or maybe you have other tricks up your sleeve...
>
>  - Ricky

No portal. There is too much light sources and portals would be too slow. I use
high number of primary diffuse rays (12).

Attached the source of the scene.

Regards,
Fidos.


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From: Paolo Gibellini
Subject: Re: RSOCP scene
Date: 1 Feb 2009 17:56:05
Message: <49862885$1@news.povray.org>
Nice!
There is a some mood in the scene!
;-)
Paolo

 >fidos  on date 01/02/2009 20:44 wrote:
> Hello,
> 
> 3 hours with mcpov for a RSOCP scene.
> 
> Regards,
> Fidos
> 
> 
> ------------------------------------------------------------------------
>


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From: Dre
Subject: Re: RSOCP scene
Date: 1 Feb 2009 22:27:41
Message: <4986682d$1@news.povray.org>
"fidos" <fid### [at] wanadoofr> wrote in message 
news:web.498609b1334f43c14f44ad660@news.povray.org...
> "triple_r" <nomail@nomail> wrote:
>> "fidos" <fid### [at] wanadoofr> wrote:
>> > 3 hours with mcpov for a RSOCP scene.
>>
>> Neat.  Three hours, eh?  I'll assume you need portals to get it to render 
>> that
>> quickly, even on a quad-core.  How do you set that up for toroidal lights
>> though?  Do you bound it by a sphere?  Do you approximate the tori with a 
>> mesh?
>>  Or maybe you have other tricks up your sleeve...
>>
>>  - Ricky
>
> No portal. There is too much light sources and portals would be too slow. 
> I use
> high number of primary diffuse rays (12).
>
> Attached the source of the scene.
>
> Regards,
> Fidos.
>
Can I ask how many passes this scenes took?

I'm just curious as I have it running atm and its on pass 14 and still very 
very blurry.  I dont have the CPU power you do but its been going to for 
twice as long allready.

Cheers Dre


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From: fidos
Subject: Re: RSOCP scene
Date: 2 Feb 2009 07:15:01
Message: <web.4986e304334f43c11ba65e360@news.povray.org>
"Dre" <and### [at] gmailcom> wrote:
> "fidos" <fid### [at] wanadoofr> wrote in message
> news:web.498609b1334f43c14f44ad660@news.povray.org...
> > "triple_r" <nomail@nomail> wrote:
> >> "fidos" <fid### [at] wanadoofr> wrote:
> >> > 3 hours with mcpov for a RSOCP scene.
> >>
> >> Neat.  Three hours, eh?  I'll assume you need portals to get it to render
> >> that
> >> quickly, even on a quad-core.  How do you set that up for toroidal lights
> >> though?  Do you bound it by a sphere?  Do you approximate the tori with a
> >> mesh?
> >>  Or maybe you have other tricks up your sleeve...
> >>
> >>  - Ricky
> >
> > No portal. There is too much light sources and portals would be too slow.
> > I use
> > high number of primary diffuse rays (12).
> >
> > Attached the source of the scene.
> >
> > Regards,
> > Fidos.
> >
> Can I ask how many passes this scenes took?
>
> I'm just curious as I have it running atm and its on pass 14 and still very
> very blurry.  I dont have the CPU power you do but its been going to for
> twice as long allready.
>
> Cheers Dre

Around 28 passes on 4 cores if I remember well. But, 28x8 passes is not
equivalent to 56x2 or 112x1 passes. Better is 28x8 passes.
H. Karsten point out that in its post :
http://news.povray.org/web.49563c4fbe8b348c20776f0%40news.povray.org
The problem is in the way mcpov choise the pixels to trace in order to reduce
noise.

Regards,
Fidos


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From: Dre
Subject: Re: RSOCP scene
Date: 2 Feb 2009 17:11:13
Message: <49876f81@news.povray.org>
"fidos" <fid### [at] wanadoofr> wrote in message 
news:web.4986e304334f43c11ba65e360@news.povray.org...
> "Dre" <and### [at] gmailcom> wrote:
>> "fidos" <fid### [at] wanadoofr> wrote in message
>> news:web.498609b1334f43c14f44ad660@news.povray.org...
>> > "triple_r" <nomail@nomail> wrote:
>> >> "fidos" <fid### [at] wanadoofr> wrote:
>> >> > 3 hours with mcpov for a RSOCP scene.
>> >>
>> >> Neat.  Three hours, eh?  I'll assume you need portals to get it to 
>> >> render
>> >> that
>> >> quickly, even on a quad-core.  How do you set that up for toroidal 
>> >> lights
>> >> though?  Do you bound it by a sphere?  Do you approximate the tori 
>> >> with a
>> >> mesh?
>> >>  Or maybe you have other tricks up your sleeve...
>> >>
>> >>  - Ricky
>> >
>> > No portal. There is too much light sources and portals would be too 
>> > slow.
>> > I use
>> > high number of primary diffuse rays (12).
>> >
>> > Attached the source of the scene.
>> >
>> > Regards,
>> > Fidos.
>> >
>> Can I ask how many passes this scenes took?
>>
>> I'm just curious as I have it running atm and its on pass 14 and still 
>> very
>> very blurry.  I dont have the CPU power you do but its been going to for
>> twice as long allready.
>>
>> Cheers Dre
>
> Around 28 passes on 4 cores if I remember well. But, 28x8 passes is not
> equivalent to 56x2 or 112x1 passes. Better is 28x8 passes.
> H. Karsten point out that in its post :
> http://news.povray.org/web.49563c4fbe8b348c20776f0%40news.povray.org
> The problem is in the way mcpov choise the pixels to trace in order to 
> reduce
> noise.
>
> Regards,
> Fidos
>
>

Okay well I left it on over night (3.1gig dual core machine) and its now 
done 76 passes.  Its still very blurry compared to yours.  I'll have a read 
and see if I can work out what is going on in that link you sent.

Thanks for the info!

Cheers Dre


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