//EXAMPLE OF INTERSECTION OF CONE WITH PLANE //A CONIC SECTION THAT IS AN ELLIPSE //Files with predefined colors and textures #include "colors.inc" #include "glass.inc" #include "golds.inc" #include "metals.inc" #include "stones.inc" #include "woods.inc" //Place the camera camera { sky <0,0,1> //Don't change this direction <-1,0,0> //Don't change this right <-4/3,0,0> //Don't change this location <10,5,2> //Camera location look_at <0,0,0> //Where camera is pointing angle 40 //Angle of the view--increase to see more, decrease to see less } //Ambient light to "brighten up" darker pictures global_settings { ambient_light White } //Place a light--you can have more than one! light_source { <10,10,10> //Change this if you want to put the light at a different point color White*2 //Multiplying by 2 doubles the brightness } //Set a background color background { color White } intersection{ cone { <0, 0, -2>, 2, <0, 0, 2>, 0 texture {T_Stone1}} plane {<0,1,1>, .7 pigment {color Red}} }