RENDERING DEVICE, RENDERING METHOD AND RENDERING PROGRAM

摘要

Processing load for displaying a numerical simulation result on a drawing apparatus is reduced. The drawing apparatus is provided for drawing a flow line representing flow of a fluid in a 3D-space as a 2D image viewed from an arbitrary viewpoint position. The drawing apparatus includes a flow line generation section configured to generate the flow line from a predetermined start position; a view setting section configured to set the viewpoint position in the 3D-space; a band-of-facets forming section configured to form a band of facets connecting a plurality of polygon facets along the flow line based on the set viewpoint position; and a texture mapping section configured to map texture onto each of the plurality of polygon facets. The texture represents reflected light on the band of facets with respect to a light source placed at a predetermined position in the 3D-space.