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%)

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