POV-Ray : Newsgroups : povray.binaries.images : Ambient and cast shadows on metallic textures : Re: Ambient and cast shadows on metallic textures Server Time
29 Nov 2021 18:06:18 EST (-0500)
  Re: Ambient and cast shadows on metallic textures  
From: Alain Martel
Date: 25 Nov 2021 12:06:43
Message: <619fc2a3$1@news.povray.org>
Le 2021-11-24 à 22:14, Cousin Ricky a écrit :
> It has become conventional wisdom around here, perhaps started by
> clipka, that metallic finishes should have zero ambient, and Alain has
> been carrying that banner ever since.  I have been skeptical, however.
> 

I came to the conclusion that metallic finishes should have zero ambient 
through my own experimentation. The metallic textures from the various 
includes looked just wrong to me. I started by commenting out the 
ambient. I got a massive improvement. Then, I tested with an explicit 
zero ambient and got the best, most realistic, result.

When I first posted about it, I was unaware of Clipka's position on that 
subject.

The metallic finishes from metals.inc have been made to look acceptable 
in an empty scene against a black background, and that's the only 
situation where they look somewhat correct.


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