<s>
In	O
3D	O
computer	O
graphics	O
and	O
modeling	O
,	O
volumetric	O
meshes	B-Algorithm
are	O
a	O
polygonal	O
representation	O
of	O
the	O
interior	O
volume	O
of	O
an	O
object	O
.	O
</s>
<s>
Unlike	O
polygon	B-Algorithm
meshes	I-Algorithm
,	O
which	O
represent	O
only	O
the	O
surface	O
as	O
polygons	O
,	O
volumetric	O
meshes	B-Algorithm
also	O
discretize	O
the	O
interior	O
structure	O
of	O
the	O
object	O
.	O
</s>
<s>
One	O
application	O
of	O
volumetric	O
meshes	B-Algorithm
is	O
in	O
finite	B-Application
element	I-Application
analysis	I-Application
,	O
which	O
may	O
use	O
regular	O
or	O
irregular	O
volumetric	O
meshes	B-Algorithm
to	O
compute	O
internal	O
stresses	O
and	O
forces	O
in	O
an	O
object	O
throughout	O
the	O
entire	O
volume	O
of	O
the	O
object	O
.	O
</s>
<s>
Volume	B-Algorithm
meshes	I-Algorithm
may	O
also	O
be	O
used	O
for	O
portal	B-General_Concept
rendering	I-General_Concept
.	O
</s>
