<s>
Open	B-Language
Shading	I-Language
Language	I-Language
(	O
OSL	O
)	O
is	O
a	O
shading	B-Language
language	I-Language
developed	O
by	O
Sony	O
Pictures	O
Imageworks	O
for	O
use	O
in	O
its	O
Arnold	B-Application
Renderer	I-Application
.	O
</s>
<s>
It	O
is	O
also	O
supported	O
by	O
Illumination	O
Research	O
's	O
3Delight	B-Application
renderer	O
,	O
Otoy	O
's	O
Octane	B-Application
Render	I-Application
,	O
V-Ray	B-Application
3	O
,	O
Redshift	B-Application
(	O
from	O
April	O
2021	O
)	O
,	O
and	O
the	O
Cycles	O
render	O
engine	O
in	O
Blender	B-Application
(	O
starting	O
with	O
Blender	B-Application
2.65	O
)	O
.	O
</s>
<s>
OSL	O
's	O
surface	O
and	O
volume	O
shaders	O
define	O
how	O
surfaces	O
or	O
volumes	O
scatter	O
light	O
in	O
a	O
way	O
that	O
allows	O
for	O
importance	B-Algorithm
sampling	I-Algorithm
;	O
thus	O
,	O
it	O
is	O
well	O
suited	O
for	O
physically	O
based	O
renderers	O
that	O
support	O
ray	O
tracing	O
and	O
global	B-Algorithm
illumination	I-Algorithm
.	O
</s>
<s>
In	O
RenderMan	B-Application
,	O
OSL	O
is	O
also	O
an	O
important	O
module	O
.	O
</s>
<s>
It	O
is	O
modified	O
there	O
for	O
better	O
AVX2	O
and	O
AVX-512	B-General_Concept
instruction	O
set	O
support	O
with	O
doubled	O
performance	O
.	O
</s>
<s>
Release	O
1.12	O
supports	O
C++14	B-Language
as	O
default	O
,	O
but	O
also	O
newer	O
C++17	B-Language
and	O
C++20	B-Language
.	O
</s>
<s>
OpenImageIO	B-Language
support	O
will	O
be	O
dropped	O
for	O
2.0	O
with	O
support	O
of	O
2.2	O
.	O
</s>
<s>
1.12.6	O
is	O
supported	O
in	O
Blender	B-Application
3.4	O
.	O
</s>
<s>
Larry	O
Gritz	O
explain	O
origin	O
of	O
Open	B-Language
Shading	I-Language
Language	I-Language
:	O
</s>
