MKVECTOR.EXE precalculate vector utility
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MKVECTOR.EXE is a utility that reads 3D Studio .3ds files and
precalculates the shading vectors which are written to file, VEC
files. If smoothing groups are used in 3D Studio, the calculation
of Phong and Gouraud shading vectors is very slow. Use this utility
to make the runtime setup faster by precalculating all vectors.

