FIELD: information technology.
SUBSTANCE: invention involves generating an edge data table located in cache memory, common for two or more geometrically adjacent patches. Each patch is assigned an identification value. When a first patch has a common edge with a second patch, a unique identification value is generated for a table entry, which is carried out based on identification values of two patches with a common edge. Attributes of the common edge are stored in a table entry associated with a unique identification value. When estimating a common edge for the second patch, the edge can be read from the table in reverse order.
EFFECT: high rate of processing patch edges.
17 cl, 3 dwg
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