Yingzuishan gold deposit lies in the intersection point of North Qilian Mts and South Altyn abruption, it is related to the ultramafite nearly in space.
Abstract: Yingzuishan gold deposit lies in the intersection point of North Qilian Mts and South Altyn abruption, it is related to the ultramafite nearly in space.
This light is called indirect illumination, and in order to calculate it, we take the intersection point from the primary ray and generate a secondary ray that bounces off it.
If there are no objects between the intersection point and a light source, then that means that this point on the blue stripe is directly illuminated by that light source.