APPARATUS AND METHOD FOR BACK-FACE CULLING USING FRAME COHERENCE

摘要

PURPOSE: A back face culling device based on similarity between frames and a method thereof are provided to determine the front or back face of a polygonal object by using a matrix reflecting the 3D movements of a frame. CONSTITUTION: A reinspection determining unit(1070) determines the generation of visibility information which classifies polygons of the current frame as back face polygons or front face polygons. A visibility inspecting unit(1080) generates the visibility information according to the determination of the reinspection determining unit. A visibility buffer(1082) stores the visibility information. A culler(1090) culls the back face polygons of the polygons.