<s>
Surfel	B-General_Concept
is	O
an	O
abbreviated	O
term	O
for	O
a	O
"	O
surface	O
element	O
,	O
"	O
analogous	O
to	O
a	O
"	O
voxel	O
"	O
(	O
volume	O
element	O
)	O
or	O
a	O
"	O
pixel	O
"	O
(	O
picture	O
element	O
)	O
.	O
</s>
<s>
In	O
3D	O
computer	O
graphics	O
,	O
the	O
use	O
of	O
surfels	B-General_Concept
is	O
an	O
alternative	O
to	O
polygonal	O
modeling	O
.	O
</s>
<s>
Surfels	B-General_Concept
are	O
well	O
suited	O
to	O
modeling	O
dynamic	O
geometry	O
,	O
because	O
there	O
is	O
no	O
need	O
to	O
compute	O
topology	O
information	O
such	O
as	O
adjacency	O
lists	O
.	O
</s>
