message: Allow for spherical area lights in scene graph
diff: @@ -66,8 +66,8 @@ using plastic_t = plastic<float>;
  using generic_light_t = generic_light<
  point_light<float>,
  spot_light<float>,
  - area_light<float, basic_triangle<3, float>>//,
  -// area_light<float, basic_sphere<float>>
  + area_light<float, basic_triangle<3, float>>,
  + area_light<float, basic_sphere<float>>
  >;
  using generic_material_t = generic_material<
  emissive<float>,
  