Shadows
warning
It is considered to be removed. Please use Directive instead
Shadows[True | False]
a scoped parameter like RGBColor or Opacity, that determines if a light source can cast shadows or a primitive can receive shadows as well.
See
Graphics3D[{Shadows[shadow], ExampleData[{"Geometry3D","StanfordBunny"}][[1]], SpotLight[White, {{0., -0.4473, 0.4291}, {0,0,0}}, Pi/4, 1], Polygon[ 0.01{{-20,20,-1}, {20,20,-1}, {20,-20,-1}, {-20,-20,-1}}]}, "Lighting"->None] /. {{shadow -> True}, {shadow -> False}}