POV-Ray : Newsgroups : povray.general : More height_field texturing : Re: More height_field texturing Server Time
7 Aug 2024 17:22:33 EDT (-0400)
  Re: More height_field texturing  
From: Warp
Date: 30 Jul 2001 21:02:45
Message: <3b6603b4@news.povray.org>
Cris Williams <wor### [at] netscapenet> wrote:
: It looks to me like you loose some detail when the bump_map method is used.
: The HF image seems more realistic.  The grain seems to be deeper and more 3D
: in the HF.  The differences are subtle, though.

  Are you aware of what exactly does a bump_map do? Your text sounds a bit
like you may not be completely sure. I (or someone else) can explain it if
you want (it's rather interesting).

-- 
#macro N(D,I)#if(I<6)cylinder{M()#local D[I]=div(D[I],104);M().5,2pigment{
rgb M()}}N(D,(D[I]>99?I:I+1))#end#end#macro M()<mod(D[I],13)-6,mod(div(D[I
],13),8)-3,10>#end blob{N(array[6]{11117333955,
7382340,3358,3900569407,970,4254934330},0)}//                     - Warp -


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