POV-Ray : Newsgroups : povray.beta-test : Heightfield bug (most probably an inverted normals problem) : Re: Heightfield bug (most probably an inverted normals problem) Server Time
13 Aug 2022 19:36:11 EDT (-0400)
  Re: Heightfield bug (most probably an inverted normals problem)  
From: Warp
Date: 22 Jan 2002 06:36:40
Message: <3c4d4ec8@news.povray.org>
Mike Williams <mik### [at] nospamplease> wrote:
: Is this the same as

: Unsmooth smooth HF shading
: (the shading of height-fields with abrupt changes is very ugly when
: smooth shading is turned on)
: http://news.povray.org/3c02ac19@news.povray.org

  It says:

"the shading of height-fields with abrupt changes is very ugly when smooth
shading is turned on."

  There are no abrupt changes in my example.
  The problem in my example seems that normals get inverted when they
shouldn't.

-- 
#macro M(A,N,D,L)plane{-z,-9pigment{mandel L*9translate N color_map{[0rgb x]
[1rgb 9]}scale<D,D*3D>*1e3}rotate y*A*8}#end M(-3<1.206434.28623>70,7)M(
-1<.7438.1795>1,20)M(1<.77595.13699>30,20)M(3<.75923.07145>80,99)// - Warp -


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