Hi folks:

I just finished rendering this little file as a Quicktime Movie, [Start
- 1, End - 50, Frames - 50] and everything worked ok except for the
skysphere, which jumps around like TV static.  Is there an easy way to
minimize this effect?

Thanks,
--Brandan

--------------Begin Scene File----------------

// Persistence of Vision Ray Tracer Scene Description File
// File: .pov
// Vers: 3.1
// Desc: Earth/Moon Flyby
// Date: 10/28/00
// Auth: Brandan Whearty

// ==== Standard POV-Ray Includes ====
#include "colors.inc" // Standard Color definitions
#include "textures.inc" // Standard Texture definitions
#include "metals.inc" // Standard Metal definintions

camera
{ location  <(-1.5+(clock*3)) ,-.03 ,-.08>
  look_at   <0.0 , 0.0 , 0.0>}

// SUN
light_source
{ 0*x
  color rgb<1,1,1>  // light's color
  translate <100, 1,-500>
}

//  STARFIELD
sky_sphere
{
   pigment {
        granite
        color_map {
            [0.72 rgb 0.00 ]
            [0.72 rgb 0.20 ]
            [0.75 rgb 0.00 ]
            [0.78 rgb 0.60 ]
            [0.81 rgb 0.00 ]
            [0.85 rgb 0.05 ]
            [0.91 rgb 1.00 ]
            [0.91 rgb 0.00 ]
        }
    scale .0015
    }
}

// MOON
sphere {<0,0,0> 3
  scale .5
  translate <10,0,0>
  no_shadow
  texture{
    pigment {
      agate
      color_map {
        [0.0 color Grey]
        [0.2 color <1,1,1>]
        [0.4 color LightGrey]
        [0.6 color Grey]
        [0.8 color<.3,.3,.3>]
        [0.9 color Grey]
      }
       scale .3
       turbulence 0
      }
      finish {ambient 0 diffuse 2}
}}

// EARTH LIKE PLANET
sphere {<0,0,0> 3
  translate <-10,0,0>
  texture{
    pigment {
      granite
      color_map {
        [0.0 color Brown]
        [0.2 color DarkGreen]
        [0.3 color DarkBrown]
        [0.4 color DarkGreen]
        [0.45 color Blue]
        [0.6 color Blue]
        [0.7 color Blue]
      }
      scale 6
      turbulence 0
      }
      finish {ambient .1 diffuse 2}
}}

// EARTH LIKE PLANET CLOUD COVER
sphere {<0,0,0> 3.1
  translate <-10,0,0>
  texture{
    pigment {
      agate
      color_map {
        [0.0 color rgbf <1,1,1,1>]
        [0.2 color rgbf <1,1,1,0>]
        [0.5 color <1,1,1,1>]
        [0.6 color <1,1,1,0>]
        [0.8 color <1,1,1,1>]
        [0.9 color <1,1,1,0>]
        [0.92 color <1,1,1,1>]
      }
      scale 10
      turbulence 2
      }
      finish {ambient .2 diffuse 2}
}}

// SPACE SHIP
#macro Hull()
   union{
   union {
     cylinder{ <-3,0,0> <2,0,0> 1}
     sphere {<-3,0,0> 1}
     pigment {P_Chrome5}
     finish {F_MetalA}
     scale <1,.5,1>
   }
   sphere{ <-3,.5,0> .5
     scale <1,1,1>
     pigment {color Blue}
     finish {reflection .5}
   }
   }
#end // Hull

#macro Engine(EngineOffSet)
  union{
  difference {
    union {
      cylinder{<0,0,0> <3,0,0> 1}
      sphere{<0,0,0> 1}
      box{<1,-0,-.1> <3,1.5,.1>}
      box{<1,1.5,.1> <0,0,-.1>
       rotate 45*z
       translate <1.3,-.2,0>
        }
      translate<0,0,EngineOffSet>
      pigment {P_Chrome5}
      finish{F_MetalA}
    }
    sphere{<3,0,0> .7
      translate <0,0,EngineOffSet>
      pigment {color rgb <1,.25,0>}
      finish {ambient 1}
    }
   plane {y,1.5
     inverse}
   plane {y,-1.5}
  }
  }
#end // Engine

object {
  union {
    Hull()
    Engine(1.5)
 Engine(-1.5)
  }
  scale<2,1,1>
  scale<.005,.005,.005>
}

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