#include "colors.inc" camera { location <0, 2, -5> look_at <0, 1, 2> } sphere { <0, 2, 0>, 0.5 texture { pigment { color Yellow } } } plane { y, -3 // looks as expected // <-1, 1, 0>, -5 // looks weird // <-1, 1, -2>, -5 // looks completely wrong pigment { checker color White, color Black } } light_source { <2, 4, -3> color White }