Arche d'un pont
Arc roman

Vue de face (View en direction z)

Vue de profil (Vue en direction -x)

//---------------- arc, arch ------------
difference{
   box {<-1,0,-0.1>,< 1,1,0.1>}
   cylinder {<0,0,-0.15>,<0,0,0.15>,0.9 }
   texture{pigment{color White}
           normal {bumps 0.4 scale 0.007}
           finish {diffuse 0.9 phong 1}}
   scale <1,1,2>
   rotate <0,0,0>
   translate <0,0,0>}
//----------------------------------- end