As mentioned above in the directional lights section, the rendering of shadows for directional lights is an approximation that allows us to use a single render to cover a largeish area with shadows.
你也可以使用着色语技术的
基础来处理阴
投射体和接收体的材质来
复杂的阴
算法,比如
支持自投
的深度阴
贴图。