POV-Ray : Newsgroups : povray.beta-test : Sample scene broken Server Time
24 Dec 2024 23:56:56 EST (-0500)
  Sample scene broken (Message 1 to 2 of 2)  
From: clipka
Subject: Sample scene broken
Date: 17 Aug 2009 23:41:36
Message: <4a8a22f0$1@news.povray.org>
I just noticed that the following scenes are "broken" in the sense that 
they behave differently depending on whether they are rendered with 
POV-Ray 3.6 or 3.7 (beta 33):

wineglass.pov:
The checkerboard has black & white swapped.

var_reflection.pov:
In the bottom-right corner, POV-Ray 3.7 swaps light & dark stripes.

normal.pov:
The top-right block appears less bumpy with POV-Ray 3.7.

newdiffract.pov:
With POV-Ray 3.7, the items exhibit a yellow tint that wasn't there with 
3.6.

grenadine.pov:
The drink appears to have a stronger IOR with POV-Ray 3.7.

brick.pov:
The right side of the top-right block looks different.

Various scenes with photons:
The caustics appear less bright with POV-Ray 3.7; some scenes exhibit 
additional differences.

Various scenes with crackle:
It appears as if POV-Ray 3.7 uses a different seed or random number 
generator.

noise_generator.pov:
The leftmost spheres exhibit a different pattern, which appears to have 
a lower "contrast" in POV-Ray 3.7.


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From: Chris Cason
Subject: Re: Sample scene broken
Date: 19 Aug 2009 02:22:50
Message: <4a8b9a3a$1@news.povray.org>
clipka wrote:
> I just noticed that the following scenes are "broken" in the sense that 
> they behave differently depending on whether they are rendered with 
> POV-Ray 3.6 or 3.7 (beta 33):

Some of these could be due to the difference in the default noise 
generator. Does it still happen with #version 3.6 set?

-- Chris


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