POV-Ray : Newsgroups : povray.binaries.images : Bug in dispersion_samples? Server Time
31 Jul 2024 16:29:01 EDT (-0400)
  Bug in dispersion_samples? (Message 1 to 3 of 3)  
From: Cousin Ricky
Subject: Bug in dispersion_samples?
Date: 22 Jun 2009 14:08:02
Message: <op.uvxtzhvb6b35ac@your-727a0a4e7c.vipowernet.net>
The image shows 2 fewer hues than the dispersion_samples value.

The first image shows the setup I used for testing.  The wall near the  
camera casts a shadow on the screen for contrast.

The second image is the actual test.  The numbers 3 through 10 are the  
values of dispersion_samples for the pair of prisms above each.  The  
prisms in the top row cast a narrow slit of photons onto the screen right  
below the numbers.  The prisms in the lower row refract the white line  
near the bottom.

I'm using version 3.6.2 (32-bit), but I've noticed the problem in earlier  
versions.  My OS is Windows XP 2002 Media Center Edition SP3.

-- 
<Insert witty .sig here>


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Attachments:
Download 'dispersion_samples-ov.png' (28 KB) Download 'dispersion_samples.png' (53 KB)

Preview of image 'dispersion_samples-ov.png'
dispersion_samples-ov.png

Preview of image 'dispersion_samples.png'
dispersion_samples.png


 

From: Alain
Subject: Re: Bug in dispersion_samples?
Date: 23 Jun 2009 20:18:44
Message: <4a4170e4@news.povray.org>

> The image shows 2 fewer hues than the dispersion_samples value.
> 
> The first image shows the setup I used for testing.  The wall near the 
> camera casts a shadow on the screen for contrast.
> 
> The second image is the actual test.  The numbers 3 through 10 are the 
> values of dispersion_samples for the pair of prisms above each.  The 
> prisms in the top row cast a narrow slit of photons onto the screen 
> right below the numbers.  The prisms in the lower row refract the white 
> line near the bottom.
> 
> I'm using version 3.6.2 (32-bit), but I've noticed the problem in 
> earlier versions.  My OS is Windows XP 2002 Media Center Edition SP3.
> 
> 
> ------------------------------------------------------------------------
> 
> 
> ------------------------------------------------------------------------
> 
I'm not realy sure, but maybe that the first sample is in the infra red 
and the last in the ultra violet range...


Alain


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From: Cousin Ricky
Subject: Re: Bug in dispersion_samples?
Date: 23 Jun 2009 22:35:00
Message: <web.4a419086b936795e78641e0c0@news.povray.org>
Alain <aze### [at] qwertyorg> wrote:
> I'm not realy sure, but maybe that the first sample is in the infra red
> and the last in the ultra violet range...

....So what I need are a pit viper and a honey bee to fully appreciate this
software. :-)

Interspecies ray tracing--another first from the POV Team!


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