Below are the 2 type rendering I have done, compare with the white surface that can
reflect the light, another one black surface no reflection for
the light. can I know why the black surface no refection on the light
NOTE: on top of the surface I have apply AREA LIGHT appearance.
I think it depends on the render quality setting, which determines how many times light reflects and refracts, and also depends on how the material is defined.
Retrieving data ...