olemus
ISO/IEC 19794:
3x4 maatriks, millega teisendatakse kolmemõõtmelise pinna meetriline ristkoordinaat kahemõõtmelise tekstuurikujutise koordinaadiks, mõlemal pinnal homogeenseid koordinaate kasutades
= 3x4 matrix to transform a 3D surface coordinate from a metric Cartesian coordinate system to a 2D texture image coordinate, where the transformation makes use of the 3D homogeneous coordinates of the 3D point as well as the 2D homogeneous coordinates of the 2D point