POV-Ray : Newsgroups : povray.newusers : Artifacts on lathe object : Artifacts on lathe object Server Time
28 Jul 2024 16:31:35 EDT (-0400)
  Artifacts on lathe object  
From: Angela
Date: 17 Jul 2008 00:35:00
Message: <web.487ec9449eb880d26e62e6f60@news.povray.org>
A long time ago, when I first started playing with POVRay, it was quite the
trend to have a short POV script for a signature. No one does that anymore it
seems, but I always wanted to try it, so I did! Except the lathe object in the
script appears with artifacts...

I've tried antialiasing, raising the max_trace_level, and adding the sturm
keyword, but none worked. I am using version 3.6.1c.

camera{location y*10 look_at 0}
light_source{<1,30,1>rgb 1}
difference{
  lathe{
    bezier_spline
    4,
    <0,-2>,<2.5,-1.95>,<1,2>,<0,3>
    rotate x*90
    texture{
      pigment{
        bozo scale .25
        color_map{
          [.2 rgb 1.5]
          [1.0 rgbt<1.6,1.5,1.5,.3>]
        }
      }
      finish{
        specular 1
        roughness .0005
        reflection .85
        irid{.25 thickness .25 turbulence 0.5}
      }
    }
  }
  prism{
    linear_sweep
    linear_spline
    0,6,28,
    <-.05,-.33>,<-.38,.66>,<-.71,-.33>,<-.61,-.33>,<-.51,0>,
    <-.25,0>,<-.15,-.33>,<-.05,-.33>,<-.46,.1>,<-.38,.46>,
    <-.31,.1>,<-.46,.1>,<.05,-.33>,<.05,.66>,<.46,.66>,
    <.66,.46>,<.66,.26>,<.46,.06>,<.15,.06>,<.15,-.33>,
    <.05,-.33>,<.15,.56>,<.41,.56>,<.56,.41>,<.56,.31>,
    <0.41,.16>,<.15,.16>,<.15,.56>
    texture{
      pigment{rgb<.6,.4,.1>}
      finish{ambient .15 brilliance 5 metallic specular .8 roughness .01
reflection .65}
    }
  }
}

(Sorry about the lousy formatting...signatures were crammed to make them as
short as possible. I tried to break it up so it is mostly readable :-) )

Thanks in advance!

~Angela Perry


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