PK_MFIN_ask_mvx_normal

PK_ERROR_code_t                   PK_MFIN_ask_mvx_normal
(
--- received arguments ---
PK_MFIN_t                         mfin,         --- the 'mfin'
const PK_MFIN_ask_mvx_normal_o_t *options,      --- options

--- returned arguments ---
PK_VECTOR1_t               *const mvx_normal    --- mvertex normal
)


This function returns the 'mvx_normal' at the mvertex of the given 'mfin'.


Specific Errors:
    PK_ERROR_eval_failure   It was not possible to obtain the 'mvx_normal'
                            (MILD)


If normals are not stored, an averaged normal for the mfin at the mvertex is
calculated.

Note: If the mfin's mvertex has a unique normal, the mvx_normal returned by
this function will be the same as that returned by PK_SURF_eval_with_normal at
parameters associated with the given mfin's mvertex.

This function will not alter the state of the mesh.