POV-Ray : Newsgroups : povray.binaries.images : More bragging: SSLT quality Server Time
13 Nov 2024 17:33:27 EST (-0500)
  More bragging: SSLT quality (Message 1 to 3 of 3)  
From: clipka
Subject: More bragging: SSLT quality
Date: 26 Aug 2010 10:49:20
Message: <4c767ef0@news.povray.org>
Image #1 was generated with POV-Ray 3.7 beta 38, using the subsurface 
scattering feature. SSLT samples setting was 200, 20. Notice how the 
noise shows a distinct pattern.

Image #2 was generated with a modified beta 38, using the same 
subsurface settings, but generating SSLT sampling directions from a 
halton sequence instead of the default random generator. Notice how 
there is much less pattern in the noice.

Image #3 and #4 were generated with SSLT samples set to 2000, 200. 
Notice how the pattern in the noise, while having become significantly 
reduced, is still present with beta 38 (image #3) despite the high 
sample count, whereas there's no visible pattern remaining with the 
modified version (image #4).


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Attachments:
Download 'subsurface_beta38.png' (513 KB) Download 'subsurface_beta38plus.png' (424 KB) Download 'subsurface_2000_beta38.png' (349 KB) Download 'subsurface_2000_beta38plus.png' (237 KB)

Preview of image 'subsurface_beta38.png'
subsurface_beta38.png

Preview of image 'subsurface_beta38plus.png'
subsurface_beta38plus.png

Preview of image 'subsurface_2000_beta38.png'
subsurface_2000_beta38.png

Preview of image 'subsurface_2000_beta38plus.png'
subsurface_2000_beta38plus.png


 

From: nemesis
Subject: Re: More bragging: SSLT quality
Date: 26 Aug 2010 11:54:37
Message: <4c768e3d@news.povray.org>
IMHO, you may brag as much and as often as you want. ;)

That said, I think it's funny how SSS is often criticized for being too 
"waxy" and here it looks more plastic than waxy... guess the candle is 
too thick... :p


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From: Tim Attwood
Subject: Re: More bragging: SSLT quality
Date: 26 Aug 2010 23:43:10
Message: <4c77344e$1@news.povray.org>
"nemesis" <nam### [at] gmailcom> wrote in message 
news:4c768e3d@news.povray.org...
> IMHO, you may brag as much and as often as you want. ;)
>
> That said, I think it's funny how SSS is often criticized for being too 
> "waxy" and here it looks more plastic than waxy... guess the candle is too 
> thick... :p

That really looks much better than before.


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