Category : Printer + Display Graphics
Archive   : VIVID2.ZIP
Filename : CLIP1.V

// clip.v -- test out new clipping planes

#include color.vc

studio {
from 1 -6 4
at 0 0 0
up 0 0 1
angle 35
res 640 480
antialias adaptive
aspect 4/3
background {
greys.map
}
ambient white * .2
}

light {
type point
falloff 0
position 1 -.5 5
color white * .5
}
light {
type point
falloff 0
position -2 -4 5
color white * .5
}

// base surface

surface {
diff plum * .5 // dark plum
}
ring { center 0 0 0 normal 0 0 1 radius 1000 }

// clip spheres

surf {
diff 0 .5 1
shine 20 white
}

sphere {
center -1.5 0 .5
radius .5
clip {
center -1.5 0 .2
normal 0 0 -1 // only keep bottom part
}
}
sphere {
center -0.5 0 .5
radius .5
clip {
center -0.5 0 .4
normal 0 0 -1 // only keep bottom part
}
}
sphere {
center 0.5 0 .5
radius .5
clip {
center 0.5 0 .6
normal 0 0 -1 // only keep bottom part
}
}
sphere {
center 1.5 0 .5
radius .5
clip {
center 1.5 0 .8
normal 0 0 -1 // only keep bottom part
}
}


sphere { // keep bottom wedge
center -1.5 -1 .5
radius .5
clip {
center -1.5 -1 .2
normal 1 0 -1 // only keep bottom part
}
clip {
center -1.5 -1 .2
normal -1 0 -1 // only keep bottom part
}
}

// use two hemispheres to make a cup with thickness

sphere {
center 0 -1 .5
radius .5
clip {
center 0 -1 .5
normal 0 0 -1 // only keep bottom part
}
}
sphere {
center 0 -1 .5
radius .4
clip {
center 0 -1 .5
normal 0 0 -1 // only keep bottom part
}
}
ring { // edge of clip cup
center 0 -1 .5
normal 0 0 1
min_radius .4 // radius of inner hemisphere
max_radius .5 // radius of outer hemisphere
}

sphere { // keep ring around center
center 1.5 -1 .5
radius .5
clip {
center 1.5 -1 .6
normal 0 0 -1 // toss top
}
clip {
center 1.5 -1 .4
normal 0 0 1 // toss bottom
}
}