• Proceedings of the Korean Society of Computer Information Conference
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• 2014.01a
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• pp.323-326
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• 2014

본 논문에서는 Unity 3D 엔진을 심층 분석하여 게임개발 교육현장에서의 유용성을 검토하였다. Unity 엔진을 이용하면 필드의 제작, 캐릭터 애니메이션 세팅, 스크립트 작성, Asset 관리, 레벨 디자인 등 많은 작업을 하나의 통합 환경에서 수행할 수 있다. 또한 컴파일 과정을 거치지 않아도 게임을 제작하는 도중 언제라도 실행해 볼 수 있기 때문에 개발에 걸리는 시간을 단축 할 수 있다. 본 연구의 초점은 게임 앱 설계 관련 프로젝트의 수행이나 교육용 게임 개발의 학습 모형을 제시하기 위한 과정이다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2016.01a
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• pp.227-228
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• 2016

본 연구에서는 게임 배경과 게임 캐릭터의 효과에 대해서 나타낸다. 먼저 3개의 캐릭터 이미지를 주 캐릭터 로 만들 이미지에 합성기법을 적용하여 캐릭터들을 합성한다. 합성하여 만든 캐릭터와 다른 캐릭터의 모양과 형태에 맞게 알맞은 배경 색상으로 만들고, 각 캐릭터의 크기, 원근, 모양, 색상에 따라 효과를 적용한다. 따라서 게임 콘텐츠를 제작하는데 정지 영상으로 표현하여 캐릭터 애니메이션과 장면에 맞는 사운드를 삽입하여 게임 콘텐츠로서 시각과 청각과 움직임이 있는 게임 캐릭터를 제작한다. 특히 배경색, 캐릭터의 번개 및 라이팅 효과색상 같은 것에 관심을 갖고 제작하여 앞으로 게임 콘텐츠의 배경과 캐릭터 효과를 제작하는데 모션그래픽을 이용하여 간단하게 제작 할 수 있음을 나타내었다.

• Proceedings of the Korean Information Science Society Conference
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• 2006.10a
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• pp.158-161
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• 2006

현대 영상산업에서 컴퓨터 그래픽스가 차지하는 비중은 크게 늘어나고 있다. 컴퓨터 그래픽스 기술의 발달로 인한 디지털 영화나 애니메이션이 점차 증가함에 따라 이러한 장면이 등장하는 가상캐릭터를 쉽게 접할 수 있다. 이런 가상 캐릭터를 이용하여 가상 해저 환경을 생성하기 위해서는 3D 모델링 및 애니메이션 기술을 개발해야 한다. 국내에서는 가상 해저 환경을 구축하여 실감 체험을 할 수 있는 VR 콘텐츠 기술 개발에 관련하여 군중 장면 처리 및 군중 행동 시스템의 설계 및 구현 등의 연구가 있었으나 군중 행동 모델러 기술 개발을 실용화 할 단계까지는 미치지 못하고 있다. 본 논문에서는 가상 해저환경에 존재하는 다수의 캐릭터의 움직임을 수작업으로 제공하는 것이 시간과 비용이 많이 소요되기 때문에 이를 자동화하여 보다 사실적이고 효율적인 가상 해저환경 속에서 군중 행동 장면을 생성하기 위해서 Fish 군중 행동 모델러 기술을 개발한다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2021.07a
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• pp.637-638
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• 2021

가상현실 기술은 사용자가 스토리에 참여할 수 있으므로 상호작용을 갖는 인터랙티브 미디어 및 교육 콘텐츠로 활용하는 것에 장점이 있다. 가상현실 공간은 3D 공간으로 구성되며 가상환경에서 사용되는 3D 캐릭터들을 제작하기 위하여 일반적으로 3D 모델링과 키 프레임 기반의 애니메이션 기법이 사용된다. 이러한 과정들은 상대적으로 큰 비용과 많은 시간이 소요됨에 따라 저예산의 프로젝트에서는 가상현실 기술을 적용한 콘텐츠 제작을 어렵게 만든다. 본 논문은 2D 만화 이미지와 만화 스타일의 애니메이션을 활용하여 가상현실 콘텐츠 제작기법을 제안하고, 만화 형식의 가상현실 콘텐츠를 제작하여 연구를 진행하였다.

• Cartoon and Animation Studies
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• s.30
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• pp.59-86
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• 2013

'Spectacles' and 'factuality' provided by computer technology are strengths of CG animation to still lure the audience and after commercial success of a number of theatrical CG animations whose typical producing companies are PIXAR and DreamWorks, were produced to be commercially successful and they win massive popularity even now. In Korea as well, several works tried to achieve a box office success including , , etc. but the result was truly miserable. In the past, this failure was often attributed to a lack of 'technical expertise', but it became clear that in the process of continuous trial and error, 'narrative' and 'images of imagination' which are bases and characteristics of animation are key elements of commercial success. Actually, statistics indicate that narrative is what is considered to be the most important by the audience when they select animation and its importance is so absolute that they say the most significant thing in animation is 'story.' In particular, it can be said that 'characters', 'situations', and 'ideas' play a key role in them which become elements of the story. This paper studied with what characteristics each animation aroused pleasure and fun focused on characters, situations and images in relation to , , and which are American theatrical CG animation films which succeeded in gaining popularity home and abroad. We hope that analysis in this paper will be helpful even just a little bit as a reference material, which allows domestic writers and producers to develop familiar and characteristic works based on imagination and creativity expressing each work's unique personality and characteristics.

• Journal of the Korea Society of Computer and Information
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• v.13 no.1
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• pp.109-116
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• 2008

Even though many studies on parallel rendering based on PC clusters have been done. most of those did not cope with non-uniform scenes, where locations of 3D models are biased. In this work. we have built a PC cluster system with POV-Ray, a free rendering software on the public domain, and developed an adaptive load balancing scheme to optimize the parallel efficiency Especially, we noticed that a frame of 3D animation are closely coherent with adjacent frames. and thus we could estimate distribution of computation amount, based on the computation time of previous frame. The experimental results with 2 real animation data show that the proposed scheme reduces by 40% of execution time compared to the simple static partitioning scheme.

• Journal of the Korea Computer Graphics Society
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• v.21 no.5
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• pp.29-36
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• 2015

Human fingers are essential parts of the body that perform complex and detailed motion. Expression of natural finger motion is one of the most important issues in character animation research. Especially, keyboard typing animation is hard to create through the existing animation pipeline because the keyboard typing typically requires a high level of dexterous motion that involves the movement of various joints in a natural way. In this paper, we suggest a method for the generation of realistic keyboard typing motion based on physics simulation. To generate typing motion properly using physics-based simulation, the hand and the keyboard models should be positioned in an allowed range of simulation space, and the typing has to occur at a precise key location according to the input signal. Based on the observation, we incorporate natural tendency that accompanies actual keyboard typing. For example, we found out that the positions of the hands and fingers always assume the default pose, and the idle fingers tend to minimize their motion. We handle these various constraints in one solver to achieve the results of real-time natural keyboard typing simulation. These results can be employed in various animation and virtual reality applications.

• The Journal of the Korea Contents Association
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• v.9 no.4
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• pp.162-171
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• 2009

In directing a film, aesthetics are use for visual manifestation of narratives to audiences. Especially, colors have important roles in that process to express emotions and to convey the story. For 3D animation, they may play even more important roles due to the nature of colors being generated by computers. This paper studies the relationship between narratives and colors by analyzing how colors change by the rise and fall of tensions in narratives, and by investigating how emotional expressions are affected due to color changes.

• Cartoon and Animation Studies
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• s.6
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• pp.193-220
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• 2002

The world being made by computers showing great expanses and complex and various expression provides not simply communication places but also a new civilization and a new creative world. Among these, 3D computer graphics, 3D animation and virtual reality technology wore sublimated as a new culture and a new genre of art by joining graphic design and computer engineering. In this study, I tried to make a diagnosis of possibilities, limits and differences of expression in the area of virtual reality computer graphics animation as a comparison between camera action, angle of actual still camera and film camera and virtual software for 3D computer graphics software - Maya, XSI, Softimage3D.

• Proceedings of the Korea Contents Association Conference
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• 2005.11a
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• pp.466-469
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• 2005

Recently, in computer graphics, researches on 3D animations have been very active. One of the important research areas in 3D animation is animation of human being. Implicit surface model is convient for modeling objects composed of complicated surface such as 3D characters and liquids. Moreover, it can represent various forms of surfaces using a relatively small amount of data. In this paper, we propose a method of facial model generation using Implicit Primitive.