Difference between revisions of "User:Le Forgeron/gsd"

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The minimal number of objects is three.  
 
The minimal number of objects is three.  
  
−
=== Interunion ===
 
 
=== Interunion ===
 
=== Interunion ===
  
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<td>
 
<td>
 
[[Image:LeForgeronIntermerge.png|center|240px<!--right-->]]
 
[[Image:LeForgeronIntermerge.png|center|240px<!--right-->]]
 +
</td>
 +
</tr>
 +
</table>
 +
 +
 +
== Sample scenes ==
 +
 +
=== scene 1 ===
 +
<table class="matte" width="670px" cellpadding="0" cellspacing="10">
 +
<tr>
 +
  <td>
 +
 +
<source lang="pov">
 +
 +
#version 3.8;
 +
global_settings{ assumed_gamma 1.0 }
 +
 +
#include "colors.inc"
 +
#include "metals.inc"
 +
#include "skies.inc"
 +
 +
#declare Unzoom = 3;
 +
#declare Radius = 18.5;
 +
 +
camera { orthographic
 +
location 6*Radius*<-6,2,-9>
 +
direction Radius*z
 +
up Unzoom*Radius*y
 +
right Unzoom*Radius*x*image_width/image_height
 +
look_at 0
 +
}
 +
 +
light_source { Radius*<-2,50,-30>*100, 1 area_light 400*x*Radius,Radius*400*z, 10, 10  }
 +
 +
interunion {
 +
#for(i,-1, 1, 2)
 +
#for(j,-1, 1, 2)
 +
#for(k,-1, 1, 2)
 +
sphere { <i,j,k>, Radius texture { T_Chrome_3A} }
 +
#end
 +
#end
 +
#end
 +
sphere { 0, Radius }
 +
  range{ 5 }
 +
  texture { T_Chrome_3B}
 +
}
 +
 +
plane { y, -Radius
 +
  texture { pigment { tiling 2
 +
      color_map{
 +
        [1/3 color (Salmon+IndianRed)/2]
 +
        [2/3 color Salmon]
 +
        [0.95 color IndianRed]
 +
        [1 color Black]
 +
      }
 +
        scale Radius/2} }
 +
}
 +
 +
sky_sphere { S_Cloud2 }
 +
</source>
 +
</td>
 +
<td>
 +
[[Image:LeForgeronGSDOocto.png|center|240px<!--right-->]]
 +
</td>
 +
</tr>
 +
</table>
 +
 +
=== scene 2 ===
 +
<table class="matte" width="670px" cellpadding="0" cellspacing="10">
 +
<tr>
 +
  <td>
 +
 +
<source lang="pov">
 +
#version 3.8;
 +
global_settings{ assumed_gamma 1.0 }
 +
#default { finish {emission 0.15 diffuse 0.75 reflection 0.0 phong 0.2 } }
 +
 +
#declare Unzoom = 3;
 +
#declare Radius = 1.444;
 +
 +
camera { orthographic
 +
location 6*Radius*<-6,2,-9>
 +
direction Radius*z
 +
up Unzoom*Radius*y
 +
right Unzoom*Radius*x*image_width/image_height
 +
look_at 0
 +
}
 +
 +
light_source { Radius*<-2,50,-30>*100, 1 }
 +
light_source { Radius*<0,0,-3>*100, 0.67 }
 +
light_source { Radius*<-10,0,3>*100, 0.67 }
 +
 +
intermerge {
 +
sphere { x, Radius
 +
  texture { pigment { color red 0.75  } }
 +
}
 +
sphere { -x, Radius
 +
  texture { pigment { color blue 0.75 green 0.75  } }
 +
}
 +
sphere { y, Radius
 +
  texture { pigment { color green 0.75  } }
 +
}
 +
sphere { -y, Radius
 +
  texture { pigment { color red 0.75 blue 0.75  } }
 +
}
 +
sphere { z, Radius
 +
  texture { pigment { color blue 0.75  } }
 +
}
 +
sphere { -z, Radius
 +
  texture { pigment { color green 0.75 red 0.75  } }
 +
}
 +
sphere { 0, Radius*5/5
 +
  texture { uv_mapping
 +
    pigment {checker
 +
    pigment {
 +
    color srgb 0.95 filter 0.95 },
 +
    pigment { color srgb 0.4 filter 0.7  }
 +
}
 +
scale <1/50,1/25,1>
 +
}
 +
}
 +
  range{ 3 }
 +
  interior { ior 1.333 }
 +
}
 +
plane { y, -Radius*1.2
 +
  texture { pigment { color srgb 0.75  } }
 +
}
 +
plane { z, Radius*2.2
 +
  texture { pigment { color srgb 0.95  } }
 +
}
 +
 +
</source>
 +
</td>
 +
<td>
 +
[[Image:LeForgeronGSDOover.png|center|240px<!--right-->]]
 
</td>
 
</td>
 
</tr>
 
</tr>
 
</table>
 
</table>

Latest revision as of 07:33, 28 May 2019


GSD : Generalised Symmetric Difference

RANGE: (NUMBER|VECTOR)[,RANGE]
VECTOR: <NUMBER, NUMBER>
NUMBER: number of intersection, negative number are added to total number of object+1

GSD

The minimal number of objects is three.

Interunion

syntax is 

interunion { 
  OBJECTS...
  [range{ RANGE } ]*
  [OBJECT_MODIFIERS...] 
 }

#version 3.7;
global_settings { assumed_gamma 1.0 }

camera { location -560*z
direction z
up y
right image_width*x/image_height
angle 5
}

#include "colors.inc"

interunion{
#for(i,0,359.99,60)
#local pos= vrotate(6*x,i*z);
cylinder { pos-z,pos+31*z,10 texture { pigment { color CH2RGB(i) filter 0.45 } } }
#end
range { <2,4> }
clipped_by {cylinder { 30*z,0, 20  } }
}
box { 30*z-20*x-20*y, 30*z+20*x+20*y texture { pigment { color White }}}

light_source { 10*<0,0,-20>, 0.9 }
light_source { 10*<-5,10,-50>, 0.9 }
light_source { 10*<-10,10,-50>, 0.9 }
light_source { 10*<5,10,-50>, 0.9 }
light_source { 10*<10,10,-50>, 0.9 }
LeForgeronInterunion.png

Intermerge

syntax is 

intermerge { 
  OBJECTS...
  [range{ RANGE } ]*
  [OBJECT_MODIFIERS...] 
 }

#version 3.7;
global_settings { assumed_gamma 1.0 }

camera { location -560*z
direction z
up y
right image_width*x/image_height
angle 5
}

#include "colors.inc"

intermerge{
#for(i,0,359.99,60)
#local pos= vrotate(6*x,i*z);
cylinder { pos-z,pos+31*z,10 texture { pigment { color CH2RGB(i) filter 0.45 } } }
#end
range { <2,4> }
clipped_by {cylinder { 30*z,0, 20  } }
}
box { 30*z-20*x-20*y, 30*z+20*x+20*y texture { pigment { color White }}}

light_source { 10*<0,0,-20>, 0.9 }
light_source { 10*<-5,10,-50>, 0.9 }
light_source { 10*<-10,10,-50>, 0.9 }
light_source { 10*<5,10,-50>, 0.9 }
light_source { 10*<10,10,-50>, 0.9 }
LeForgeronIntermerge.png


Sample scenes

scene 1

#version 3.8;
global_settings{ assumed_gamma 1.0 }

#include "colors.inc"
#include "metals.inc"
#include "skies.inc"

#declare Unzoom = 3;
#declare Radius = 18.5;

camera { orthographic
location 6*Radius*<-6,2,-9>
direction Radius*z
up Unzoom*Radius*y
right Unzoom*Radius*x*image_width/image_height
look_at 0
} 

light_source { Radius*<-2,50,-30>*100, 1 area_light 400*x*Radius,Radius*400*z, 10, 10  }

interunion {
#for(i,-1, 1, 2)
#for(j,-1, 1, 2)
#for(k,-1, 1, 2)
sphere { <i,j,k>, Radius texture { T_Chrome_3A} }
#end
#end
#end
sphere { 0, Radius }
  range{ 5 } 
  texture { T_Chrome_3B}
}

plane { y, -Radius
  texture { pigment { tiling 2
      color_map{
        [1/3 color (Salmon+IndianRed)/2]
        [2/3 color Salmon]
        [0.95 color IndianRed]
        [1 color Black]
      }
        scale Radius/2} }
}

sky_sphere { S_Cloud2 }
LeForgeronGSDOocto.png

scene 2

#version 3.8;
global_settings{ assumed_gamma 1.0 }
#default { finish {emission 0.15 diffuse 0.75 reflection 0.0 phong 0.2 } }

#declare Unzoom = 3;
#declare Radius = 1.444;

camera { orthographic
location 6*Radius*<-6,2,-9>
direction Radius*z
up Unzoom*Radius*y
right Unzoom*Radius*x*image_width/image_height
look_at 0
} 

light_source { Radius*<-2,50,-30>*100, 1 }
light_source { Radius*<0,0,-3>*100, 0.67 }
light_source { Radius*<-10,0,3>*100, 0.67 }

intermerge {
sphere { x, Radius 
  texture { pigment { color red 0.75  } }
}
sphere { -x, Radius 
  texture { pigment { color blue 0.75 green 0.75  } }
}
sphere { y, Radius 
  texture { pigment { color green 0.75  } }
}
sphere { -y, Radius 
  texture { pigment { color red 0.75 blue 0.75  } }
}
sphere { z, Radius 
  texture { pigment { color blue 0.75  } }
}
sphere { -z, Radius 
  texture { pigment { color green 0.75 red 0.75  } }
}
sphere { 0, Radius*5/5
  texture { uv_mapping
    pigment {checker
    pigment {
     color srgb 0.95 filter 0.95 },
     pigment { color srgb 0.4 filter 0.7  }
}
scale <1/50,1/25,1>
}
}
  range{ 3 }
  interior { ior 1.333 }
}
plane { y, -Radius*1.2
  texture { pigment { color srgb 0.75  } }
}
plane { z, Radius*2.2
  texture { pigment { color srgb 0.95  } }
}
LeForgeronGSDOover.png
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