• Journal of Korea Game Society
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• v.18 no.4
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• pp.65-74
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• 2018

As commercial game engines become available to the public, attempts have been made to use it for general purpose research. This study uses the game engine to develop a medical simulation. Specifically, when the user selects an important portion of the human body, the focus+context visualization is applied to the volume data. We proposes the accumulation based method to make the background part more transparent and naturally fuse it with the focus part. Since the proposed method combines well with the existing volume visualization, the virtual surgery function such as incision is performed smoothly. The game engine is useful for general-purpose research, because auxiliary functions such as collision handling and UI can be efficiently created with the help of it.

• The Journal of the Korea institute of electronic communication sciences
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• v.18 no.6
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• pp.1229-1238
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• 2023

Digital twin is a technology that creates a virtual space that replicates the real world and manages the real world efficiently by integrating the real and virtual spaces. The digital twin concept for water facilities is to effectively manage water pipes in the real world by implementing them in a virtual space and augmenting them to the interior space of the building. In the proposed method, the Unity 3D game engine is used to implement the application of digital twin technology in the interior of a building. The AR Foundation toolkit based on ARCore is used as the augmented reality technology for our Digital Twin implementation. In digital twin applications, it is essential to match the real and virtual worlds. In the proposed method, 2D image markers are used to match the real and virtual worlds. The Unity shader program is also applied to make the augmented objects visually realistic. The implementation results show that the proposed method is simple but accurate in placing water pipes in real space, and visually effective in representing water pipes on the wall.

• Journal of the Korean Association of Geographic Information Studies
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• v.20 no.1
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• pp.98-112
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• 2017

Recently, various research has been conducted on the use of a game engine instead of a commercial geographic information system (GIS) engine for the development of 3D GIS. The advantage of the 3D game engine is that it allows developers to develop various modules according to their abilities. In particular, in the area of disasters, a wide range of alternatives for prevention as well as prediction can be presented when new analyses are attempted by combining geographic information and disaster-related information. Furthermore, 3D analysis can be an important factor in analyzing the phenomena occurring in the real 3D world because of the nature of disasters. Therefore, in this study, we tried to develop a visualization module for flood disaster information through a 3D game engine by considering the solutions for cost and manpower problems and the degree of freedom of development. Raw flood data was mapped onto spatial information and interpolation was performed for the natural display of the mapped flood information. Furthermore, we developed a module that intuitively shows dangerous areas to users by generating cumulative information in order to display multidimensional information based on this information. The results of this study are expected to enable various flood information analyses as well as quick response and countermeasures to floods.

• Proceedings of the Korean Society of Computer Information Conference
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• 2017.01a
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• pp.187-188
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• 2017

본 논문에서는 Inverse Kinematics(IK) 방법을 이용하여 사족보행 게임 캐릭터의 이동 IK를 구현하였다. 게임 캐릭터의 이동 IK는 Unity의 NavMeshAgent를 사용하여 이동하는 사족보행 생물체가 회전 시 척추를 자연스럽게 꺾이도록 구현되었다. 본 논문에서는 게임캐릭터에 이동 IK를 적용했을 때와 적용하지 않았을 때를 비교하였으며, 이동 IK를 적용한 경우에 경로를 따라 이동하는 사족보행 캐릭터의 애니메이션이 자연스럽게 이루어짐을 확인하였다.

• Proceedings of the Korea Information Processing Society Conference
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• 2015.10a
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• pp.475-477
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• 2015

스마트폰의 많은 보급으로 인하여 어플리케이션 또한 다양해졌다. 그리고 큐브라는 퍼즐 자체로는 많이 알려져 있다. 이 어플리케이션은 큐브라는 퍼즐을 접해보지 못한 사람들은 맞추지 못한다는 단점을 해결하고자 공식이 아닌 화면에 띄워 보다 쉽게 맞출수 있는 어플리케이션이다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2014.01a
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• pp.53-54
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• 2014

최근 국내외에서 모바일 시장은 큰 성장을 구가하고 있다. 이러한 추세에 발맞추어 모바일 게임 개발을 위해 여러 엔진을 게임업체에서 사용하고 있다. 특히 유니티 엔진은 멀티플랫폼을 지원하며, 저렴한 가격과 간단하고 쉽게 게임을 개발할 수 있다는 장점으로 많은 개발자들이 이용하는 엔진이다. 개발사 및 개인 개발자도 많이 이용하는 만큼 유니티의 여러 기능들과 이를 이용한 게임 제작은 개발 비용을 줄일 수 있는 장점을 가지고 있다. 본 논문에서는 유니티 엔진을 이용하여, 간단한 1인칭 게임을 제작할 수 있는 개발 방법에 대해 설명한다.

• Journal of information and communication convergence engineering
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• v.20 no.1
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• pp.41-48
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• 2022

With the development of technology, the procedures for making systems are altered. Jobs that were initially difficult with technology have become easier. Likewise with work as a developer. In this era, it takes work that can be done quickly, precisely, and accurately. Inspired by the Copernicus' theory that the sun is the center of the solar system, this research aims to create a plugin that is integrated with the Unity game engine so that it can create dungeons quickly and dynamically using the orbital dungeon generation method. In general, games that have several dungeons are role playing games genre with the roguelike subgenre, where games of this type are widely adopted by well-known games. This method is expected to be employed by developers, especially game developers, to simplify and speed up the creation of games using dungeons, because the complexity of the system that is made can be adjusted according to needs.

• Journal of the Korea Computer Graphics Society
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• v.26 no.3
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• pp.21-29
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• 2020

This study defines the pipeline for digital fashion contents production using CLO 3D, a 3D fashion design software that supports virtual clothing visualization as a cutting-edge simulation technology for fashion, and vuforia, a mobile platform augmented reality (AR) development kit for creating AR applications. The proposed production pipeline is organized in a method to produce a virtual clothing model through CLO 3D software through works of patterns, sewing lines, textures, etc., and AR contents based on computer vision techniques using the functions and properties of vuforia development kits in the Unity engine development environment. In addition, we present application method that can be practically utilized from the perspective of practical users, such as fashion designers and directors, by creating a new type of AR digital fashion contents directly as a flow of the defined production pipeline.

• Journal of Practical Engineering Education
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• v.12 no.2
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• pp.309-319
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• 2020

Billiards is a fun and popular sport, but both route planning and cueing prevent beginners from becoming skillful. A beginner in billiards requires constant concentration and training to reach the right level, but without the right motivating factor, it is easy to lose interests. This study aims to induce interest in billiards and accelerate learning by utilizing billiard path prediction and visualization on a highly immersive augmented reality platform that combines a stereo camera and a VR headset. For implementation, the placement of billiard balls is recognized through the OpenCV image processing program, and physics simulation, path search, and visualization are performed in Unity Engine. As a result, accurate path prediction can be achieved. This made it possible for beginners to reduce the psychological burden of planning the path, focus only on accurate cueing, and gradually increase their billiard proficiency by getting used to the path suggested by the algorithm for a long time. We confirm that the proposed AR billiards is remarkably effective as a learning assistant tool.

• Journal of Industrial Convergence
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• v.20 no.4
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• pp.1-6
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• 2022

In recent years, many global manufacturers such as Mercedes-Benz and BMW have been using augmented reality technology to spread it to various fields such as assembly process, after-sales service, sales stores, and consumer manuals. In this study, the application status of innovation in manufacturing using industrial augmented reality was identified, and the possibility of combining existing ERP and augmented reality was analyzed based on this. In addition, it was empirically analyzed that the selection of a dedicated content development engine is the most important factor in development productivity in the development of industrial augmented reality content. The same content developed with Unity3d was redeveloped with Vuforia Studio, and as a result of comparative analysis of development man-hours by field, the development lead time was shortened by 8 times. This study proves productivity by actually developing industrial augmented reality contents, and it is a study with a difference that is difficult to implement in practice.