Hair rendering by jittering and pseudo shadow

Proposes two properties of hair that we believe are essential to realistic hair rendering. To satisfy these two properties of hair, we introduce the "jittering and pseudo-hair model". The jittering and pseudo-shadows are achieved through the use of a shadow factor. Experimental results show that, with the incorporation of these two properties, hair images look more natural than images do without these properties, thus proving that these two properties do indeed improve the realism of hair images.