The Institute for Mechnical and Automation Engineering (MAE), The Chinese University of Hong Kong (CUHK) was pleased to host the 12th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and its Applications in Industry (VRCAI 2013), from 17-19 November 2013 at CUHK campus. As a joint conference of SIGGRAPH ASIA 2013, VRCAI 2013 will take place just before SIGGRAPH Asia 2013. VRCAI 2013 solicits papers and posters from both academia and industry in the world - a hotbed of innovation - where fundamental methods, state-of-the-art technologies and applications in the Virtual Reality Continuum (VRC) will be explored and presented. Virtual Reality Continuum (VRC) emphasizes the consistence of virtual world and the real world. Spanning across next-generation info-communication environments like Virtual Reality (VR), Augmented Virtuality (AV), Augmented Reality (AR) and Mixed Reality (MR), VRC is key in the way we define and interact, with and within, our virtual worlds. To advance research in the VRC fields, VRCAI 2013 seeks to provide a forum for scientists, researchers, developers, users and industry leaders in the international VRC community to come together to share experiences, exchange ideas and spur one another in the knowledge of this fast-growing field. VRCAI 2013 will still focus on the following main themes: VRC Fundamentals, Systems, SQLIO, Interactions, and Industry and various Applications of the VRC.