<s>
The	O
IW	B-Application
engine	I-Application
is	O
a	O
game	O
engine	O
created	O
and	O
developed	O
by	O
Infinity	O
Ward	O
for	O
the	O
Call	B-Application
of	I-Application
Duty	I-Application
series	O
.	O
</s>
<s>
The	O
engine	O
was	O
originally	O
based	O
on	O
id	B-Application
Tech	I-Application
3	I-Application
.	O
</s>
<s>
The	O
engine	O
has	O
been	O
distinct	O
from	O
the	O
id	B-Application
Tech	I-Application
3	I-Application
engine	O
on	O
which	O
it	O
is	O
based	O
since	O
Call	B-Application
of	I-Application
Duty	I-Application
2	I-Application
in	O
2005	O
.	O
</s>
<s>
The	O
engine	O
's	O
name	O
was	O
not	O
publicized	O
until	O
IGN	O
was	O
told	O
at	O
the	O
E3	O
2009	O
by	O
the	O
studio	O
that	O
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
Modern	I-Application
Warfare	I-Application
2	I-Application
would	O
run	O
on	O
the	O
"	O
IW	B-Application
4.0	O
engine	O
"	O
.	O
</s>
<s>
Development	O
of	O
the	O
engine	O
and	O
the	O
Call	B-Application
of	I-Application
Duty	I-Application
games	O
has	O
resulted	O
in	O
the	O
inclusion	O
of	O
advanced	O
graphical	O
features	O
while	O
maintaining	O
an	O
average	O
of	O
60	O
frames	O
per	O
second	O
on	O
the	O
consoles	O
and	O
PC	O
.	O
</s>
<s>
Call	B-Application
of	I-Application
Duty	I-Application
4	I-Application
:	I-Application
Modern	I-Application
Warfare	I-Application
was	O
released	O
using	O
version	O
3.0	O
of	O
the	O
engine	O
.	O
</s>
<s>
This	O
game	O
included	O
features	O
such	O
as	O
bullet	O
penetration	O
,	O
improved	O
AI	B-Application
,	O
lighting	O
engine	O
upgrades	O
,	O
better	O
explosions	O
,	O
particle	O
system	O
enhancements	O
and	O
many	O
more	O
improvements	O
.	O
</s>
<s>
Treyarch	O
began	O
using	O
an	O
enhanced	O
version	O
of	O
the	O
IW	B-Application
3.0	I-Application
engine	O
for	O
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
World	I-Application
at	I-Application
War	I-Application
.	O
</s>
<s>
Treyarch	O
modified	O
the	O
engine	O
for	O
their	O
James	O
Bond	O
title	O
,	O
007	B-Application
:	I-Application
Quantum	I-Application
of	I-Application
Solace	I-Application
.	O
</s>
<s>
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
Modern	I-Application
Warfare	I-Application
2	I-Application
was	O
released	O
using	O
the	O
IW	B-Application
4.0	O
engine	O
,	O
the	O
only	O
game	O
to	O
do	O
so	O
.	O
</s>
<s>
The	O
IW	B-Application
4.0	O
engine	O
featured	O
texture	O
streaming	O
technology	O
to	O
create	O
much	O
higher	O
environmental	O
detail	O
without	O
sacrificing	O
performance	O
.	O
</s>
<s>
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
Black	I-Application
Ops	I-Application
was	O
not	O
based	O
on	O
IW	B-Application
4.0	O
;	O
rather	O
,	O
Treyarch	O
further	O
enhanced	O
the	O
version	O
of	O
IW	B-Application
3.0	I-Application
they	O
had	O
used	O
in	O
their	O
previous	O
game	O
.	O
</s>
<s>
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
Modern	I-Application
Warfare	I-Application
3	I-Application
utilizes	O
an	O
improved	O
version	O
of	O
the	O
IW	B-Application
4.0	O
engine	O
.	O
</s>
<s>
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
Black	I-Application
Ops	I-Application
II	I-Application
was	O
developed	O
using	O
a	O
further	O
iteration	O
of	O
the	O
IW	B-Application
engine	I-Application
.	O
</s>
<s>
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
Black	I-Application
Ops	I-Application
II	I-Application
takes	O
advantage	O
of	O
DirectX	B-Application
11	I-Application
video	O
cards	O
on	O
the	O
Windows	O
version	O
of	O
the	O
game	O
.	O
</s>
<s>
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
Ghosts	I-Application
features	O
an	O
upgraded	O
version	O
of	O
the	O
IW	B-Application
5.0	I-Application
seen	O
in	O
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
Modern	I-Application
Warfare	I-Application
3	I-Application
.	O
</s>
<s>
It	O
is	O
unknown	O
at	O
this	O
time	O
whether	O
or	O
not	O
any	O
engine	O
features	O
have	O
been	O
taken	O
from	O
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
Black	I-Application
Ops	I-Application
II	I-Application
.	O
</s>
<s>
Since	O
the	O
main	O
developer	O
is	O
Infinity	O
Ward	O
they	O
have	O
returned	O
to	O
their	O
original	O
engine	O
naming	O
system	O
and	O
called	O
this	O
iteration	O
IW	B-Application
6.0	I-Application
.	O
</s>
<s>
IW	B-Application
6.0	I-Application
is	O
compatible	O
with	O
next-gen	O
systems	O
such	O
as	O
Xbox	B-Device
One	I-Device
and	O
PlayStation	B-Operating_System
4	I-Operating_System
so	O
polygon	O
counts	O
,	O
texture	O
detail	O
and	O
overall	O
graphical	O
fidelity	O
has	O
been	O
increased	O
.	O
</s>
<s>
IW	B-Application
6.0	I-Application
is	O
also	O
compatible	O
with	O
Microsoft	B-Application
Windows	I-Application
,	O
Wii	B-Device
U	I-Device
,	O
PS3	B-Operating_System
and	O
Xbox	B-Operating_System
360	I-Operating_System
.	O
</s>
<s>
The	O
IW	B-Application
6.0	I-Application
engine	O
features	O
technology	O
from	O
Pixar	O
,	O
SubD	O
,	O
which	O
increases	O
the	O
level	O
of	O
detail	O
of	O
models	O
as	O
one	O
gets	O
closer	O
to	O
them	O
.	O
</s>
<s>
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
Advanced	I-Application
Warfare	I-Application
features	O
Sledgehammer	O
Games	O
 '	O
in-house	O
custom	O
engine	O
with	O
only	O
a	O
few	O
lines	O
of	O
legacy	O
code	O
remaining	O
from	O
the	O
IW	B-Application
engine	I-Application
.	O
</s>
<s>
Majority	O
of	O
the	O
engine	O
in	O
Advanced	B-Application
Warfare	I-Application
had	O
been	O
built	O
from	O
the	O
ground	O
up	O
.	O
</s>
<s>
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
Black	I-Application
Ops	I-Application
III	I-Application
uses	O
a	O
highly	O
upgraded	O
version	O
of	O
the	O
engine	O
used	O
in	O
Black	B-Application
Ops	I-Application
II	I-Application
.	O
</s>
<s>
Call	B-Application
of	I-Application
Duty	I-Application
:	O
Infinite	B-Application
Warfares	I-Application
IW	B-Application
7.0	I-Application
features	O
weightlessness	O
system	O
,	O
game	O
physics	O
improvement	O
,	O
improved	O
AI	B-Application
and	O
improved	O
non-player	O
characters	O
behaviors	O
.	O
</s>
<s>
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
WWII	I-Application
uses	O
an	O
enhanced	O
version	O
of	O
Sledgehammer	O
Games	O
 '	O
in-house	O
custom	O
engine	O
from	O
Advanced	B-Application
Warfare	I-Application
.	O
</s>
<s>
For	O
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
Black	I-Application
Ops	I-Application
4	I-Application
,	O
Treyarch	O
heavily	O
modified	O
the	O
engine	O
used	O
in	O
Black	B-Application
Ops	I-Application
III	I-Application
to	O
support	O
up	O
to	O
100	O
players	O
,	O
and	O
introduced	O
a	O
new	O
'	O
Super	O
Terrain	O
 '	O
system	O
.	O
</s>
<s>
With	O
Call	B-Application
of	I-Application
Duty	I-Application
:	O
Modern	O
Warfare	O
and	O
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
Warzone	I-Application
,	O
Infinity	O
Ward	O
employed	O
their	O
Poland	O
studio	O
to	O
rebuild	O
the	O
engine	O
completely	O
.	O
</s>
<s>
Dubbed	O
IW	B-Application
8.0	O
,	O
the	O
engine	O
was	O
created	O
within	O
five	O
years	O
,	O
and	O
feature	O
substantial	O
upgrades	O
such	O
as	O
spectral	O
rendering	O
,	O
volumetric	B-General_Concept
lighting	I-General_Concept
and	O
support	O
for	O
hardware-accelerated	O
ray	B-Algorithm
tracing	I-Algorithm
on	O
the	O
PC	O
version	O
.	O
</s>
<s>
Support	O
for	O
Nvidia	O
's	O
Deep	B-Device
Learning	I-Device
Super	I-Device
Sampling	I-Device
(	O
DLSS	B-Device
)	O
was	O
added	O
later	O
in	O
April	O
2021	O
.	O
</s>
<s>
Activision	O
has	O
stated	O
that	O
the	O
new	O
engine	O
is	O
also	O
shared	O
across	O
the	O
board	O
for	O
all	O
Call	B-Application
of	I-Application
Duty	I-Application
developers	O
to	O
use	O
in	O
future	O
titles	O
.	O
</s>
<s>
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
Black	I-Application
Ops	I-Application
Cold	I-Application
War	I-Application
does	O
not	O
use	O
this	O
new	O
engine	O
,	O
but	O
instead	O
uses	O
a	O
highly	O
modified	O
version	O
of	O
the	O
Black	B-Application
Ops	I-Application
III	I-Application
engine	O
.	O
</s>
<s>
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
Vanguard	I-Application
is	O
powered	O
by	O
the	O
same	O
engine	O
used	O
in	O
Modern	O
Warfare	O
and	O
Warzone	O
with	O
enhancements	O
from	O
developer	O
Sledgehammer	O
Games	O
.	O
</s>
<s>
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
Modern	I-Application
Warfare	I-Application
II	I-Application
is	O
developed	O
on	O
a	O
highly	O
upgraded	O
version	O
of	O
the	O
engine	O
first	O
used	O
in	O
2019	O
's	O
Modern	O
Warfare	O
.	O
</s>
<s>
Dubbed	O
IW	B-Application
9.0	O
,	O
the	O
engine	O
is	O
co-developed	O
by	O
Infinity	O
Ward	O
,	O
Treyarch	O
,	O
and	O
Sledgehammer	O
Games	O
,	O
and	O
will	O
be	O
used	O
in	O
future	O
installments	O
of	O
the	O
series	O
in	O
a	O
unified	O
effort	O
to	O
ensure	O
that	O
every	O
studio	O
is	O
working	O
with	O
the	O
same	O
tools	O
.	O
</s>
<s>
New	O
'	O
Super	O
Terrain	O
 '	O
systemCall	O
of	O
Duty	O
:	O
Modern	O
Warfare	O
&	O
Call	B-Application
of	I-Application
Duty	I-Application
:	O
WarzoneIW	O
8.0	O
(	O
Rebuilt	O
version	O
of	O
IW	B-Application
engine	I-Application
)	O
2019	O
&	O
2020Heavily	O
rebuilt	O
version	O
of	O
IW	B-Application
engine	I-Application
with	O
much	O
improved	O
lighting	O
,	O
physics	O
,	O
graphics	O
,	O
etc	O
.	O
</s>
