Improving Shadow Aliasing with Smoothies

Abstract

Shadows can increase realism of a scene and help a viewer to understand the relative position of each object. However, realistic shadows can be very difficult to compute in real-time. The article focuses on the generation of soft shadow. Shadow map is used to render the hard shadow; smoothie map is used to soften the aliasing edges from shadow map. In addition, the silhouette searching algorithm has been enhanced to improve the performance.