<s>
In	O
3D	O
computer	O
graphics	O
software	O
,	O
vertex	B-Application
painting	I-Application
refers	O
to	O
interactive	O
editing	O
tools	O
for	O
modifying	O
vertex	O
attributes	O
directly	O
on	O
a	O
3D	O
polygon	B-Algorithm
mesh	I-Algorithm
,	O
using	O
painting	O
tools	O
similar	O
to	O
any	O
digital	O
painting	O
application	O
but	O
working	O
in	O
a	O
3D	O
viewport	O
on	O
a	O
perspective	O
view	O
of	O
a	O
rotated	O
model	O
.	O
</s>
