_t_e_s_s Specifies the tessellation object (created with ffffgggglllluuuuNNNNeeeewwwwTTTTeeeessssssss).
DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
ffffgggglllluuuuTTTTeeeessssssssBBBBeeeeggggiiiinnnnCCCCoooonnnnttttoooouuuurrrr and ffffgggglllluuuuTTTTeeeessssssssEEEEnnnnddddCCCCoooonnnnttttoooouuuurrrr delimit the definition of a
polygon contour. Within each ffffgggglllluuuuTTTTeeeessssssssBBBBeeeeggggiiiinnnnCCCCoooonnnnttttoooouuuurrrr/ffffgggglllluuuuTTTTeeeessssssssEEEEnnnnddddCCCCoooonnnnttttoooouuuurrrr
pair, there can be zero or more calls to ffffgggglllluuuuTTTTeeeessssssssVVVVeeeerrrrtttteeeexxxx. The vertices
specify a closed contour (the last vertex of each contour is
automatically linked to the first). See the ffffgggglllluuuuTTTTeeeessssssssVVVVeeeerrrrtttteeeexxxx reference
page for more details. ffffgggglllluuuuTTTTeeeessssssssBBBBeeeeggggiiiinnnnCCCCoooonnnnttttoooouuuurrrr can only be called between
ffffgggglllluuuuTTTTeeeessssssssBBBBeeeeggggiiiinnnnPPPPoooollllyyyyggggoooonnnn and ffffgggglllluuuuTTTTeeeessssssssEEEEnnnnddddPPPPoooollllyyyyggggoooonnnn.