Nowadays, with the advancement of the Internet and personal mobile devices, many interactive media are prevailing, where viewers make their own decisions on the story of the media based on their interactions. The interaction that the user can make is usually pre-programmed by a programmer. Therefore, interactions that users can make are limited to programmable areas. In comparison, in this paper, we propose an Interactive media authoring tool which can compose diverse two-hand interactions from several one-hand interactive components. The aim is to provide content creators with a tool to produce multiple hand motions so that they can design a variety of user interactions to stimulate the interest of content viewers and increase their sense of immersion. Using the proposed system, the content creator can gain greater freedom to create more diverse and complex interactions than programmable ones. The system is composed of a complex motion editor that edits one-hand motions into complex two-hand motions, a touchless sensor that senses the hand motion and a metadata manager that handles the metadata, which specify the settings for the interactive functions. To our knowledge, the proposed system is the first web-based authoring tool that can authorize complex two-hand motions from single hand motions, and which can also control a touchless motion control device.

As the demand for immersive content that facilitates physical interactions with users continues to rise, so does the need for such content. The evolution of web technologies is expected to lead to a surge in 3D content that can be executed directly within web environments, providing a 3D experience across multiple platforms. The increasing availability of 3D content creation tools is likely to empower both professionals and novices to produce content more easily. Given the growing demand for 3D content, the trend towards cross-platform availability, and the simplification of content authoring tools, technologies that enable the production of interactive 3D content through Multi-Device Integration in web contexts are set to become essential. To address this demand, this paper presents an interaction API designed to streamline user interactions within web environments. By utilizing this API, developers can create interactive 3D content across various devices. The Interactive 3D Media Production framework enhances usability, accessibility, and platform independence by integrating diverse interaction modalities and providing plug-ins for other authoring tools.