Patent ID: 6211882
Filing Date: 2001-04-03
Classification: G06T

Abstract:
A system for simulating motion blur in an exposure interval, comprising:identifying means for identifying an intersection point of an edge of a moving polygon with a stationary sampling point;first generating means for generating a segment that identifies a span of time that said stationary sampling point is inside said moving polygon;second generating means for generating an event list for a set of generated segments, wherein said event list includes a sequential list of start and end points of said list of generated segments;third generating means for generating a visible surface list that includes a list of visible segments;grouping means for placing one or more polygons that are associated with said visible segments in said visible surface list into a group, wherein said group of polygons have a continuous time coverage over an object;first determining means for determining a shading sampling rate for said group, wherein said shading sampling rate is dependent upon the type of surface being shaded;second determining means for determining one or more shading sampling points for said group;first combining means for combining values obtained by said one or more shading sampling points into a shading value for said stationary sampling point;third determining means for determining a texture sampling rate for said group;fourth determining means for determining texture sampling points for said group; andsecond combining means for combining values obtained by said texture sampling points into a texture value for said stationary sampling point.