泡をイメージした形状を定義します。
//**********************************************************************************
#local Obj_seg =
sphere { 0, 6
pigment { rgb 1 filter 1 }
finish { ambient .1 diffuse .1 reflection .2 specular 1 roughness .001
irid { 0.2 thickness 0.1 turbulence 0.8 } }
interior { ior 1.25 fade_distance 50 fade_power 1 caustics 0.8 }
scale < 1,0.6,1 > }
//**********************************************************************************
