POV-Ray : Newsgroups : povray.beta-test : 3.8 and text {} : Re: Hello darkness (was Re: 3.8 and text {}) Server Time
28 Sep 2022 06:13:54 EDT (-0400)
  Re: Hello darkness (was Re: 3.8 and text {})  
From: Dick Balaska
Date: 14 Nov 2019 15:49:32
Message: <5dcdbddc@news.povray.org>
On 11/14/19 7:26 AM, William F Pokorny wrote:
> On 11/14/19 2:27 AM, Dick Balaska wrote:
>>
>> Changing my SDL from #version 3.7 to 3.8 causes the image to be much 
>> darker.
>>
> 
> One of the changes 3.7 to 3.8 was to take the default ambient to 0.0. 
> It's a funky color adder disconnected from gamma handling, and at 0.1, 
> it tends to brink near blacks way up in intensity with AG 1.0 - washing 
> out the contrast in the images. Your 1.7 AG is already compensating for 
> this effect to a large degree.
> 
> Have you tried changing the default ambient back to 0.1 when changing 
> your version to 3.8?
> 
> Bill P.

I'm trying to explore/understand this.
This,
https://www.povray.org/documentation/3.7.0/r3_4.html#r3_4_1
says the default ambient is <1,1,1>, not 0.1.  Am I looking at the wrong 
thing?

-- 
dik
Rendered 23,657,702,400 of 40,928,716,800 pixels (57%)


Post a reply to this message

Copyright 2003-2021 Persistence of Vision Raytracer Pty. Ltd.