Editorial issue 32.3

This special issue contains 24 full papers selected from the Computer Animation and Social Agents 2021 Conference (CASA2021). conference was founded by Graphics Society (CGS) in 1988 Geneva is oldest on world. It has been held many countries around world recent years Beijing, China (2018), Paris, France (2019), Bournemouth, UK (2020), this year Ottawa, Canada. The two last conferences have organized virtually due to Covid-19 pandemy. We would like thank authors for sharing their research findings submitting CASA2021. are very grateful Program Committee members reviewing all people who contributed success of University Ottawa under guidance CGS. WonSook Lee (University Canada). Chris Joslin (Carleton University, Daniel Thalmann (EPFL, Switzerland). Eric Paquette (École de Technologie Supérieure, Sung-Hee (Korea Advanced Institute Science Technology, Korea). Jian Chang (Bournemouth UK). Shihui Guo (Xiamen China). Nadia Magnenat Geneva, Switzerland Nanyang Technological Singapore). Feng Tian Nadine Aburumman (Brunel University). Selim Balcisoy (Sabanci Seungbae Bang Toronto). Loic Barthe (IRIT - Université Toulouse). Anup Basu Alberta). Anil Ufuk Batmaz (Simon Fraser Jan Bender (RWTH Aachen Sebastian Bosse (Fraunhofer). Dan Casas (Universidad Rey Juan Carlos). Susana Castillo (TU Braunschweig). Raphaėlle Chaine (LIRIS Lyon 1). Parag Chaudhuri (Indian Technology Bombay). Justin Dauwels Delft). Etienne Sevin (SANPSY Bordeaux). Zhigang Deng Houston). Shujie (King's College London). Abdennour El Rhalibi (Liverpool John Moores Petros Faloutsos (York EECS). Christos Gatzidis Ugur Gudukbay (Bilkent Xiaohu (The Texas at Dallas). Sehoon Ha (Georgia Technology). James Hahn (George Washington Daseong Han (Handong Global Carlo Harvey (Birmingham City Gaoqi He (East Normal Ying (Nanyang Zhiyong Huang (NUS School Computing). Jinyuan Jia (Tongji Xiaogang Jin (State Key Lab CAD\&CG, Zhejiang Prem Kalra (IIT Delhi). Dongwann Kang (Seoul National Mubbasir Kapadia (Rutgers Jinmo Kim (Hansung Meekyoung (Daegu Min H. Scott King (Texas A&M Corpus Christi). Andreas Kolb Siegen). Taku Komura Edinburgh). Taesoo Kwon (Hanyang David Labbe (Ecole technologie superieure). Fabrizio Lamberti (Politecnico di Torino). Myungho (Pusan Yoonsang Ping Li Hong Kong Polytechnic Tsai-Yen (National Chengchi Xiaohui Liang (Beihang Shiguang Liu (Tianjin Xuequan Lu (Deakin Guoliang Luo Jiaotong Chongyang Ma (Snap Inc.) Anderson Maciel (Universidade Federal do Rio Grande Sul). Bob-Antoine Jerry Menelas Quebec Chicoutimi). Shigeo Morishima (Waseda Sudhir Mudur (Concordia Soraia Musse (Pontificia Universidade Catolica Roi Sul, PUCRS, Brazil). Junjun Pan Yuru Pei (Peking Julien Pettre (INRIA). Tiberiu Popa Nicolas Pronost (Université Claude Bernard Kun Qian Qin (Stony Brook Taehyun Rhee (Computational Media Innovation Centre, Victoria Wellington). Craig Schroeder (UCR). Ari Shapiro (ByteDance). Shinjiro Sueda Yiying Tong (Michigan State Michiel van Panne British Columbia). Meili Wang (Northwest A&F Leeds). Jungdam Won (Facebook AI Research). Sai-Keung Wong Chiao Tung Zhongke Wu (BNU). Pengcheng Xi Research Council Tianchen Xu (Advanced Micro Devices). Weiwei (Zhejiang Fan Yachun (Beijing Qingan Yan (JD.com). Bailin Yang (College Information Engineering, Gongshang Xiaosong Yin (Clemson Yuting Ye (Oculus Lihua You Hongchuan Yu (NCCA, Bournemouth Zerrin Yumak (Utrecht Zhang Wenshu (Cardiff Metropolitan Jianmin Zheng