Real-time principal direction line drawings of arbitrary 3D surfaces

Ahna Girshick, Victoria Interrante
1999 ACM SIGGRAPH 99 Conference abstracts and applications on - SIGGRAPH '99  
doi:10.1145/311625.312172 dblp:conf/siggraph/GirshickI99 fatcat:6u33ue2q3bgmtatxz2uhthfe4a