Rendering device

摘要

In a rendering device (Urend1), a processor (1) receives object data (Dpol) which defines a polygon by shape, and object data (Dlin) which defines a line by shape. The processor (1) also receives mesh data (Dms) which specifies a three-dimensional mesh representing a shape of a ground surface. Based on thus received object data (Dpol) and the mesh data (Dms), the processor (1) generates intermediate data (Dlm3) which represents the polygon mapped onto the three-dimensional mesh. Further, based on the received object data (Dlin) and the mesh data (Dms), the processor (1) draws the shape of the line on the three-dimensional mesh so that display image data (Ddisp) which can display a three-dimensional image including the polygon and line drawn on the ground surface is generated. In this manner, realized is the rendering device (Urend1) capable of generating the display image data having no deformation on lines when displayed.