When i was using Pov ray 3.1 for a scene .. the area light produced very
smooth shadows.. but in the beta(8).. the shadow is very grainy and i had to
manually blur it to smoothen it out.. and i used anti aliasing of 0.5. I
have Win 98SE.. 350 MHz.. P-II 80 MB Ram..

Rahul Pilani

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"Rahul Pilani" <rah### [at] yahoocom> wrote in message
news:3c22f013@news.povray.org...
> When i was using Pov ray 3.1 for a scene .. the area light produced
> very smooth shadows.. but in the beta(8).. the shadow is very grainy
> and i had to manually blur it to smoothen it out.. and i used anti
> aliasing of 0.5. I have Win 98SE.. 350 MHz.. P-II 80 MB Ram..
I tested a few scenes in Pov3.5 beta9 and Pov3.1 and didn't notice any
difference (execept that 3.5 is a bit faster :). Can you give the source for
the problem scene?

Ari-Matti

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here is the source for the problem scene..
in version 3.1.. i cud get the impressions in the dice and the shadows of
the dice much smoother than this..

#version 3.5
#include "colors.inc"
#include "textures.inc"
#include "finish.inc"
file://global_settings {
 file://photons {spacing 0.1}
file://}

camera {
file://orthographic
location <0,1,-5>
look_at  <0,0,0>
rotate x*-10
rotate y*-30
translate <-1,0,-2>

}
file://background {White}
light_source {
                <2,2,-3>
                color White
               area_light <3, 0, 0>, <0, 0, 3>, 3, 3
                adaptive 1
              jitter

            //    rotate x*-90
                             }
difference
{
superellipsoid
  {
  <0.25,0.25>
  interior {ior 1.5}
  file://photons {
 // target .5
  file://refraction on   }
  texture {
  pigment {rgbf<.635,0,0,1>}
  finish {ambient .1
        diffuse .1
        specular .1
        roughness .001
       phong 4
       phong_size 40
       reflection .2
  }

  }
  file://scale <.01,.01,.01>
       }



  sphere {
    <-.5, .5, -1>, .175
    texture {
      pigment {White }
   //  finish {Shiny}
    file://scale <0.25,0.25,0.25>
    }
  }

    sphere {
    <.5, -.5, -1>, .175
    texture {
      pigment {White }
    //     finish {Shiny}
    file://scale <0.25,0.25,0.25>
    }
  }
   sphere {
    <.5, .5, -1>, .175
    texture {
      pigment {White }
       //  finish {Shiny}
    file://scale <0.25,0.25,0.25>
    }
  }
    sphere {
    <-.5, -.5, -1>, .175
    texture {
      pigment {White }
        // finish {Shiny}
    file://scale <0.25,0.25,0.25>
    }
  }
   sphere {
    <-1, -.5, -.5>, .175
    texture {
      pigment {White }
      //   finish {Shiny}
    file://scale <0.25,0.25,0.25>
    }
  }

   sphere {
    <-1, -.5, .5>, .175
    texture {
      pigment {White }
        // finish {Shiny}
    file://scale <0.25,0.25,0.25>
    }
  }

    sphere {
    <-1,.5,-.5>, .175
    texture {
      pigment {White }
    file://scale <0.25,0.25,0.25>
    }
  }

    sphere {
    <-1,.5,.5>, .175
    texture {
      pigment {White }
        // finish {Shiny}
    file://scale <0.25,0.25,0.25>
    }
  }

    sphere {
    <-1, 0, 0>, .175
    texture {
      pigment {White }
        // finish {Shiny}
    file://scale <0.25,0.25,0.25>
    }
  }
  sphere {
    <-.5, .5, 1>, .175
    texture {
      pigment {White }
     file://finish {Shiny}
    file://scale <0.25,0.25,0.25>
    }
  }

    sphere {
    <.5, -.5, 1>, .175
    texture {
      pigment {White }
         file://finish {Shiny}
    file://scale <0.25,0.25,0.25>
    }
  }

    sphere {
    <0, 0, 1>, .175
    texture {
      pigment {White }
      //   finish {Shiny}
    file://scale <0.25,0.25,0.25>
    }
  }
  sphere {
    <1, -.5, -.5>, .175
    texture {
      pigment {White }
    file://scale <0.25,0.25,0.25>
    }
  }

   sphere {
    <1, .5, .5>, .175
    texture {
      pigment {White }
       //  finish {Shiny}
    file://scale <0.25,0.25,0.25>
    }
  }
   sphere {
    <0, -1, 0>, .175
    texture {
      pigment {White }
       //  finish {Shiny}

    file://scale <0.25,0.25,0.25>
    }
  }
 }
 difference
{
superellipsoid
  {
  <0.25,0.25>
  interior {ior 1.5}
  texture {
  pigment {rgbf<.635,0,0,1>}
  normal { bumps .1 scale 4 }

  finish {ambient .1
        diffuse .1
        specular .1
        roughness .001
       phong 4
       phong_size 40
       reflection .2

  }

  }
  file://scale <.01,.01,.01>
       }



  sphere {
    <-.5, .5, -1>, .175
    texture {
      pigment {White }
    //  finish {Shiny}
    file://scale <0.25,0.25,0.25>
    }
  }

    sphere {
    <.5, -.5, -1>, .175
    texture {
      pigment {White }
    file://scale <0.25,0.25,0.25>
    }
  }
   sphere {
    <.5, .5, -1>, .175
    texture {
      pigment {White }
    file://scale <0.25,0.25,0.25>
    }
  }
    sphere {
    <-.5, -.5, -1>, .175
    texture {
      pigment {White }
    file://scale <0.25,0.25,0.25>
    }
  }
   sphere {
    <-1, -.5, -.5>, .175
    texture {
      pigment {White }
    file://scale <0.25,0.25,0.25>
    }
  }

   sphere {
    <-1, -.5, .5>, .175
    texture {
      pigment {White }
    file://scale <0.25,0.25,0.25>
    }
  }

    sphere {
    <-1,.5,-.5>, .175
    texture {
      pigment {White }
    file://scale <0.25,0.25,0.25>
    }
  }

    sphere {
    <-1,.5,.5>, .175
    texture {
      pigment {White }
    file://scale <0.25,0.25,0.25>
    }
  }

    sphere {
    <-1, 0, 0>, .175
    texture {
      pigment {White }
    file://scale <0.25,0.25,0.25>
    }
  }
  sphere {
    <-.5, .5, 1>, .175
    texture {
      pigment {White }
  //    finish {Shiny}
    file://scale <0.25,0.25,0.25>
    }
  }

    sphere {
    <.5, -.5, 1>, .175
    texture {
      pigment {White }
    file://scale <0.25,0.25,0.25>
    }
  }

    sphere {
    <0, 0, 1>, .175
    texture {
      pigment {White }
    file://scale <0.25,0.25,0.25>
    }
  }
  sphere {
    <1, -.5, -.5>, .175
    texture {
      pigment {White }
    file://scale <0.25,0.25,0.25>
    }
  }

   sphere {
    <1, .5, .5>, .175
    texture {
      pigment {White }
    file://scale <0.25,0.25,0.25>
    }
  }
   sphere {
    <0, -1, 0>, .175
    texture {
      pigment {White }
    file://scale <0.25,0.25,0.25>
    }
  }
 translate<3,0,0>
 rotate y*140
 }
 plane {<0,1,0>,-1
  pigment {checker color White color Black}
  finish{
  roughness .001
  reflection .5
  }}

> I tested a few scenes in Pov3.5 beta9 and Pov3.1 and didn't notice any
> difference (execept that 3.5 is a bit faster :). Can you give the source
for
> the problem scene?
>
> Ari-Matti
>
>

Post a reply to this message