Abstract: An apparatus and method for displaying topography around a position of a mobile object such as a vehicle in 3-dimensional graphics. The method includes predicting a candidate region for the mobile object's position at a display time after a predetermined period of time using current position and motion information of the mobile object; loading 3-dimensional graphic data corresponding to the predicted candidate region to memory; and rendering and displaying data corresponding to a region around a position of the mobile object at the display time among the 3-dimensional graphic data loaded to the memory.

Abstract: A method, apparatus, and medium for transforming a graphic data of an object and a computer readable recording medium storing a program for executing the method are provided. The method includes; determining at least one triangle to be collapsed among one or more triangles comprised in the object, determining a collapsing vertex to be created by collapsing the at least one triangle, and transforming the graphic data of the object based on information regarding the at least one triangle determined to be collapsed and information regarding the determined collapsing vertex. Thus, a large three-dimensional object can be efficiently rendered with a small amount of resources.

Abstract: A data structure for cloth animation and an apparatus and method of rendering 3D graphics data using the data structure. The data structure for cloth animation comprises a vertical granulation field, a horizontal granulation field, a height field, a width field, and a physical characteristics node which defines values for physical characteristics, a shift position of the cloth due to forces acting on the cloth, and due to a collision of the cloth with an object. The 3D graphics data rendering apparatus comprises an analyzer for outputting a scene graph, a calculator for calculating physical quantities for the cloth animation, and a converter for converting the scene graph comprising the calculated physical quantities into a 2D image and outputting the 2D image.