<s>
In	O
computer	O
graphics	O
,	O
sphere	B-General_Concept
mapping	I-General_Concept
(	O
or	O
spherical	O
environment	O
mapping	O
)	O
is	O
a	O
type	O
of	O
reflection	O
mapping	O
that	O
approximates	O
reflective	O
surfaces	O
by	O
considering	O
the	O
environment	O
to	O
be	O
an	O
infinitely	O
far-away	O
spherical	O
wall	O
.	O
</s>
<s>
This	O
environment	O
is	O
stored	O
as	O
a	O
texture	O
depicting	O
what	O
a	O
mirrored	O
sphere	O
would	O
look	O
like	O
if	O
it	O
were	O
placed	O
into	O
the	O
environment	O
,	O
using	O
an	O
orthographic	O
projection	O
(	O
as	O
opposed	O
to	O
one	O
with	O
perspective	B-Architecture
)	O
.	O
</s>
