Akara agụba nke nwere ike ịkọwapụta bụ agụba nke na-amachi ntinye polygonal emebere ya nke nwere ọtụtụ akụkụ mbelata n'ahụ ahụ site na iji igwe arụ ọrụ. Mgbe mgbụsị akwụkwọ na-ada ụda mgbe a na-eji ya eme ihe, naanị ị ga-achọ ịtọpụ clamping nke agụba ahụ wee depụta ma ọ bụ dochie agụba ahụ ka akụkụ ọhụrụ ahụ wee banye n'ọnọdụ ọrụ, mgbe ahụ enwere ike ịga n'ihu na-eji ya mgbe ejiri ya. N'ihi oke nrụpụta dị elu na obere oge inyeaka nke ngwá ọrụ indexable, arụ ọrụ na-arụ ọrụ na-eme ka ọ dịkwuo mma, a pụkwara iji anụ ahụ na-emepụta ihe na-emepụta ihe na-emepụta ihe, nke na-echekwa ígwè na mmepụta ihe, ya mere akụ na ụba ya dị mma. Mmepe nke ịcha mkpụrụ osisi indexable emeela ka ọganihu nke teknụzụ ngwá ọrụ na-aga n'ihu, ma n'otu oge ahụ, mmepụta pụrụ iche na nhazi nke mmepụta ihe na-emepụta ihe na-akwalite mmepe nke usoro mmepụta nke ịkpụcha osisi.