The Volume Shadow
From Xtreme3D
The Volume Shadow
Shadow Volume | Volume ShadowOne of the methods of construction of shadows, namely, the creation of the object, determining the volume, inside of which points are in the shade. The result is accurate, the detailed shadows at any distance from the camera. This method of building shadows requires large drawing speed and very "heavy" for The ������������������� models. Besides, there is no effective way to render thus has now been practically is not used, as the ����������� method of shadow maps (Shadow Map).
See also the Shadow Map.