POV-Ray : Newsgroups : povray.newusers : Metal textures : Re: Metal textures Server Time
21 Jun 2024 09:35:08 EDT (-0400)
  Re: Metal textures  
From: Sherry K  Shaw
Date: 12 Dec 2015 15:04:36
Message: <566c7dd4$1@news.povray.org>
clipka wrote:
> Am 12.12.2015 um 07:32 schrieb Sherry K. Shaw:
>
> That said, the use of "diffuse" (and, by extension, "brilliance") in
> metallic textures has no physical justification, and is only there
> because back then the primary approach to designing textures was to
> tweak them until the author thought it looked as realistic as he could
> possibly manage, rather than starting from principles of physics.
>
> As for using "brilliance" in metallic textures, it makes the diffuse
> component appear more highlight-ish, and highlights are what our brain
> expects from metallic surfaces.
>

Ah...so with the proper application of rules #6 through #9 above, what 
used to be "brilliance" is now thoroughly covered by the proper use of 
highlights and reflection...?

Must study further; good excuse to make some pictures.  :)

Thanks!

--Sherry Shaw

-- 
#macro T(E,N)sphere{x,.4rotate z*E*60translate y*N pigment{wrinkles scale
.3}finish{ambient 1}}#end#local I=0;#while(I<5)T(I,1)T(1-I,-1)#local I=I+
1;#end camera{location-5*z}plane{z,37 pigment{granite color_map{[.7rgb 0]
[1rgb 1]}}finish{ambient 2}}//                                   TenMoons


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