오늘날 월드 와이드 웹(WWW)의 성장과 함께 인터넷 상에서 3차원 세계를 표현해야 할 필요성이 급격히 증가하고 있다. 이러한 요구에 부응하여 VRML97이 개발되었고, 이는 인터넷에서 3차원 그래픽스 데이터의 표준으로 중요한 역할을 해왔다. 그리고 현재 VRML97로 기술된 데이터를 위한 브라우저가 많이 개발되어 왔다. 현재까지는 대부분 OpenGL이나 Direct3D와 같은 API를 주로 사용해왔으나 SUN의 Java3D가 활성화되면서 Java3D 기반의 VRML97 브라우저도 많이 개발되고 있다. 또한 SUN에서는 이미 3D 브라우저를 위한 프로토타입을 개발하여 제공하고 있다. 본 논문에서는 본 연구팀에서 수행하고 있는 서버-클라이언트 모델의 가상현실 시스템의 클라이언트로서의 X3D 브라우저 개발을 위한 기반 연구로서 수행된 Java3D 기반의 VRML97 브라우저의 이벤트 모델에 대하여 기술한다.
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