POV-Ray : Newsgroups : povray.binaries.images : Snow capped dirty slush texture test Server Time
1 Nov 2024 04:11:46 EDT (-0400)
  Snow capped dirty slush texture test (Message 1 to 3 of 3)  
From: [GDS|Entropy]
Subject: Snow capped dirty slush texture test
Date: 1 Mar 2014 21:20:00
Message: <web.53129456d71601d3ddb0c31e0@news.povray.org>
SSLT and etc... render time 7h.
If I include a component which has IOR [such as an ice texture] the render time
expands into the realms beyond 19 days; I say beyond, because that particular
variant is still not done, after 19d...

This is one of the now four textures developed specifically to accompany my snow
macro.

Ian


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Attachments:
Download 'snowcappedslushdirty_test1[crop].png' (109 KB)

Preview of image 'snowcappedslushdirty_test1[crop].png'
snowcappedslushdirty_test1[crop].png


 

From: [GDS|Entropy]
Subject: Re: Snow capped dirty slush texture test
Date: 1 Mar 2014 22:20:01
Message: <web.5312a2aaf099c05bddb0c31e0@news.povray.org>
Here is the version with IOR/Ice between the bright snow and the dirty slush.
Not worth the render time. That one area of checker has been there since 7h past
day one initiation of render.

It says 17ppm, but I think its lying.

By that metric, it should have been done long ago. Hah.

Anyway, the macro for the previous image has parameters which allow for
increased variance of the texture.

I'll release these macros before the main coating algorithm, and again with it
in 7z format.

Ian


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Attachments:
Download 'with ice_ior.png' (126 KB)

Preview of image 'with ice_ior.png'
with ice_ior.png


 

From: Alain
Subject: Re: Snow capped dirty slush texture test
Date: 3 Mar 2014 19:25:16
Message: <53151d6c@news.povray.org>

> Here is the version with IOR/Ice between the bright snow and the dirty slush.
> Not worth the render time. That one area of checker has been there since 7h past
> day one initiation of render.
>
> It says 17ppm, but I think its lying.
>
> By that metric, it should have been done long ago. Hah.
>
> Anyway, the macro for the previous image has parameters which allow for
> increased variance of the texture.
>
> I'll release these macros before the main coating algorithm, and again with it
> in 7z format.
>
> Ian
>

You can reduce the render time by increasing the adc_bailout value. From 
the default of 1/256 to something like 0.01 or slightly more.
Not always acurate, but, in many cases, you may not notice the difference.



Alain


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