Developing a virtual 3D environment by using game engine is a strategy to incorporate various multimedia data into one platform. The characteristic of game engine that is preinstalled with interactive and navigation tools allows users to explore and engage with the game objects. However, most CAD and GIS applications are not equipped with 3D tools and navigation systems intended to the user experience. In particular, 3D game engines provide standard 3D navigation tools as well as any programmable view to create engaging navigation thorough the virtual environment. By using a game engine, it is possible to create other interaction such as object manipulation, non playing character (NPC) interaction with player and/or environment. We conducted analysis on previous game engines and experiment on urban design project with Unity3D game engine for visualization and interactivity. At the end, we present the advantages and limitations using game technology as visual representation tool for architecture and urban design studies

This study offers discrete method in parametric design to solve problems during design process (programming, site planning, massing, structure planning, and facade planning). This study is applied in the design of office tower in Kebayoran Lama, Jakarta. The objective of the study is to explore the uses of parametric design method, yet, maintains its time feasibility. The result of the study is a method for planning and design that is more advantageous than the conventional ones in terms of simultaneous, coordinated and accountable. This method enables designer to do many iterations and monitor changes during the design process. However, the method needs a higher skill in logical thinking during the process, which demands time.

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