Chun-Chia Chiu Yi-Hsiang Lo Wei-Ting Ruan Cheng-Han Yang Ruen-Rone Lee Hung-Kuo Chu Continuous circular scribble arts. 1:1 2015 SIGGRAPH Posters https://doi.org/10.1145/2787626.2792600 conf/siggraph/2015posters db/conf/siggraph/siggraph2015posters.html#ChiuLRYLC15