Relief Mapping on facade of Sino Portuguese Architecture in Virtual Reality

Virtual Reality (VR) is an artificial environment created for presented for users to interact to virtual world and to be experienced in the way that users believe and accept it such a real environment. The environment is created to be three dimensional world using computer technology which is called Virtual Environment (VE). Virtual Environment makes user experiences immersion and realize to be inside and the part of the virtual world. Therefore, Virtual Environment is very important factor for making user immersive effectively, user must be able to explore what appears in the virtual environment and be able to interact by changing perspectives seamlessly. Generally, Virtual Environment (VE) should be made to be reality as much as possible by using high resolution of 3D model to increase more information and detail to the model in the environment. However, high resolution model, high polygon, really needs high performance computing to calculate rendering process to support user's interaction in real-time. For this paper, we focus on implementing Relief Mapping technique to reduce the polygonal bas-relief built in 3D world which is applied to VR of Sino Portuguese Architecture due to the facade of buildings consist of many bas-relief pattern via game engine, Unity3D, for real-time rendering and VR walkthrough. The result of this uses a single polygon/1 bas-relief and the quality of visualization after rendering process is compatible to the conventional process.