<s>
QuArK	B-Language
(	O
aka	O
Quake	B-Language
Army	I-Language
Knife	I-Language
)	O
,	O
is	O
a	O
free	B-License
and	O
open-source	B-Application
program	I-Application
for	O
developing	O
3D	O
assets	O
for	O
a	O
large	O
variety	O
of	O
video	O
games	O
,	O
mostly	O
first-person	O
shooters	O
using	O
engines	O
similar	O
to	O
or	O
based	O
on	O
the	O
Quake	B-Application
engine	I-Application
by	O
id	O
Software	O
.	O
</s>
<s>
QuArK	B-Language
runs	O
on	O
Microsoft	B-Application
Windows	I-Application
.	O
</s>
<s>
QuArK	B-Language
is	O
released	O
under	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
and	O
has	O
the	O
ability	O
to	O
edit	O
maps	O
(	O
either	O
directly	O
or	O
through	O
an	O
intermediate	O
compiler	O
process	O
)	O
,	O
and	O
can	O
import	O
,	O
export	O
,	O
manipulate	O
and	O
convert	O
models	O
,	O
sounds	O
,	O
textures	O
and	O
various	O
other	O
game	O
assets	O
,	O
or	O
create	O
any	O
of	O
these	O
assets	O
from	O
scratch	O
.	O
</s>
<s>
QuArK	B-Language
uses	O
external	O
compilers	O
(	O
like	O
Q3Map2	O
)	O
to	O
produce	O
the	O
actual	O
level-file	O
used	O
by	O
the	O
game	O
.	O
</s>
<s>
These	O
compilers	O
can	O
be	O
fully	O
configured	O
using	O
their	O
command-line	B-Application
parameters	O
,	O
and	O
once	O
done	O
,	O
QuArK	B-Language
remembers	O
these	O
settings	O
so	O
they	O
can	O
be	O
used	O
every	O
time	O
.	O
</s>
<s>
The	O
interface	B-Application
is	O
based	O
upon	O
VCL	B-Library
and	O
includes	O
a	O
multitude	O
of	O
flyover	O
hints	O
and	O
other	O
forms	O
of	O
in-program	O
documentation	O
.	O
</s>
<s>
It	O
also	O
offers	O
multiple	O
editor	O
layouts	O
,	O
including	O
2D	O
wireframe	B-Algorithm
and	O
3D	O
textured	O
views	O
,	O
where	O
it	O
is	O
possible	O
to	O
see	O
how	O
the	O
map	O
or	O
model	O
will	O
look	O
in-game	O
.	O
</s>
<s>
This	O
view	O
can	O
be	O
rendered	O
with	O
a	O
built-in	O
software	O
,	O
Glide	B-Operating_System
,	O
OpenGL	B-Application
or	O
Direct3D	B-Application
renderer	O
.	O
</s>
<s>
Views	O
have	O
three	O
modes	O
:	O
wireframe	B-Algorithm
,	O
solid	B-General_Concept
color	I-General_Concept
and	O
textured	O
,	O
and	O
supports	O
transparency	O
and	O
lighting	O
in	O
OpenGL	B-Application
mode	O
.	O
</s>
<s>
QuArK	B-Language
is	O
a	O
brush-based	B-Application
editor	O
,	O
that	O
works	O
by	O
adding	O
brushes	O
into	O
an	O
empty	O
space	O
,	O
building	O
the	O
map	O
block-by-block	O
.	O
</s>
<s>
QuArK	B-Language
also	O
has	O
a	O
built-in	O
leak	O
finder	O
in	O
order	O
to	O
prevent	O
holes	O
in	O
the	O
map	O
.	O
</s>
<s>
Along	O
with	O
support	O
for	O
most	O
games	O
based	O
on	O
engines	O
developed	O
by	O
id	O
Software	O
,	O
QuArK	B-Language
also	O
has	O
support	O
for	O
other	O
game	O
engines	O
such	O
as	O
Source	B-Application
,	O
Genesis3D	O
,	O
6DX	O
,	O
Crystal	B-Language
Space	I-Language
,	O
Torque	O
,	O
and	O
Sylphis	O
3D	O
.	O
</s>
<s>
It	O
is	O
possible	O
to	O
add	O
plug-ins	B-Application
,	O
written	O
in	O
Python	B-Language
,	O
to	O
extend	O
the	O
capabilities	O
of	O
the	O
editor	O
,	O
or	O
to	O
make	O
changes	O
to	O
the	O
official	O
Python	B-Language
files	O
to	O
alter	O
the	O
way	O
QuArK	B-Language
's	O
functions	O
work	O
.	O
</s>
<s>
QuArK	B-Language
itself	O
has	O
very	O
low	O
system	O
requirements	O
,	O
although	O
a	O
lot	O
of	O
additional	O
resources	O
are	O
taken	O
up	O
by	O
the	O
loaded	O
game	O
data	O
.	O
</s>
<s>
QuArK	B-Language
supports	O
the	O
Win32	B-Library
platform	I-Library
,	O
including	O
Windows	B-Application
95	I-Application
,	O
98	B-Device
,	O
ME	B-Device
,	O
NT	B-Device
4	I-Device
,	O
2000	B-Application
and	O
XP	B-Application
.	O
</s>
<s>
It	O
also	O
runs	O
on	O
64-bit	O
operating	O
systems	O
(	O
in	O
32-bit	B-Application
mode	I-Application
)	O
,	O
Windows	B-Application
Vista	I-Application
and	O
higher	O
,	O
and	O
it	O
can	O
run	O
under	O
Unix-based	O
platforms	O
by	O
using	O
the	O
Wine	B-Application
compatibility	I-Application
layer	I-Application
.	O
</s>
<s>
QuArK	B-Language
is	O
one	O
of	O
the	O
three	O
most	O
notable	O
level	O
editors	O
for	O
Quake	B-Application
,	O
together	O
with	O
Radiant	O
and	O
Worldcraft	B-Application
.	O
</s>
<s>
QuArK	B-Language
is	O
one	O
of	O
the	O
two	O
most	O
popular	O
editors	O
for	O
Quake	B-Application
II	I-Application
,	O
GtkRadiant	B-Application
being	O
the	O
other	O
.	O
</s>
<s>
QuArK	B-Language
is	O
the	O
most	O
popular	O
tool	O
to	O
access	O
WAD	B-General_Concept
files	O
.	O
</s>
<s>
QuArK	B-Language
is	O
probably	O
the	O
second	O
most	O
popular	O
tool	O
for	O
level	O
editing	O
for	O
Half-Life	B-Application
,	O
after	O
the	O
official	O
Valve	B-Application
Hammer	I-Application
Editor	I-Application
.	O
</s>
<s>
QuArK	B-Language
is	O
also	O
used	O
as	O
a	O
mapping	O
tool	O
in	O
scientific	O
studies	O
.	O
</s>
<s>
QuArK	B-Language
started	O
out	O
as	O
a	O
Delphi	B-Language
program	B-Application
called	O
"	O
Quakemap	O
"	O
,	O
written	O
by	O
Armin	O
Rigo	O
in	O
1996	O
.	O
</s>
<s>
Initially	O
it	O
could	O
only	O
edit	O
maps	O
for	O
Quake	B-Application
,	O
but	O
editing	O
capabilities	O
for	O
QuakeC	B-Application
,	O
sounds	O
and	O
compiled	O
maps	O
were	O
added	O
in	O
version	O
2	O
,	O
which	O
was	O
released	O
in	O
October	O
1996	O
.	O
</s>
<s>
In	O
1997	O
a	O
contest	O
was	O
held	O
to	O
rename	O
the	O
software	O
and	O
QuArK	B-Language
,	O
which	O
stands	O
for	O
"	O
Quake	B-Language
Army	I-Language
Knife	I-Language
"	O
,	O
was	O
selected	O
.	O
</s>
<s>
It	O
is	O
named	O
so	O
in	O
reference	O
to	O
the	O
game	O
engine	O
series	O
it	O
supported	O
,	O
the	O
Quake	B-Application
engines	I-Application
,	O
and	O
for	O
Swiss	O
Army	O
knife	O
,	O
because	O
it	O
could	O
not	O
only	O
edit	O
maps	O
,	O
but	O
included	O
a	O
model	O
editor	O
and	O
texture	O
browser	O
as	O
well	O
.	O
</s>
<s>
QuArK	B-Language
soon	O
expanded	O
to	O
support	O
Hexen	B-Application
II	I-Application
with	O
version	O
4.0	O
,	O
and	O
Quake	B-Application
II	I-Application
not	O
much	O
later	O
.	O
</s>
<s>
With	O
the	O
release	O
of	O
version	O
5.0	O
in	O
1998	O
,	O
Python	B-Language
support	O
was	O
added	O
for	O
plugin	B-Application
capabilities	O
.	O
</s>
<s>
The	O
latest	O
stable	O
version	O
of	O
QuArK	B-Language
was	O
6.3	O
,	O
released	O
in	O
January	O
2003	O
.	O
</s>
<s>
VersionLast	O
Release	O
DateMost	O
Notable	O
Changes	O
6.4.1	O
Alpha	O
September	O
2003	O
Support	O
for	O
Doom	B-Application
3	I-Application
and	O
Half-Life	B-Application
2	I-Application
.	O
</s>
<s>
6.5.0	O
Alpha	O
July	O
2006	O
Ability	O
to	O
display	O
HL2	B-Application
materials.	O
<	O
br/	O
>Fixed	O
light	O
entity	O
dependency	O
for	O
OpenGL	B-Application
transparency	O
to	O
work	O
feature.	O
<	O
br/	O
>Added	O
Quick	O
Object	O
Makers	O
,	O
to	O
quickly	O
create	O
simple	O
geometric	O
shapes.	O
<	O
br/	O
>Support	O
for	O
Quake	B-Application
4	I-Application
.	O
</s>
<s>
6.5.0	O
Beta	O
December	O
2007	O
OpenGL	B-Application
rendering	O
available	O
in	O
all	O
editor	O
windows.	O
<	O
br/	O
>Fixed	O
the	O
Software	O
&	O
Glide	B-Operating_System
lock-up	O
and	O
smearing	O
problems.	O
<	O
br/	O
>OpenGL	O
lighting	O
and	O
transparency	O
support.	O
<	O
br/	O
>Fixed	O
a	O
whole	O
load	O
of	O
memory	O
leaks.	O
<	O
br/	O
>Added	O
QuArKSAS.	O
<	O
br/	O
>Initial	O
support	O
for	O
Star	O
Trek	O
:	O
Elite	O
Force	O
II.	O
<	O
br/	O
>Ability	O
to	O
save	O
.md3	O
models	O
.	O
</s>
<s>
6.6.0	O
Beta	O
May	O
2021	O
Support	O
for	O
Call	B-Application
of	I-Application
Duty	I-Application
2	I-Application
,	O
Team	B-Application
Fortress	I-Application
2	I-Application
,	O
Heavy	B-Operating_System
Metal	I-Operating_System
:	I-Operating_System
F.A.K.K.²	I-Operating_System
,	O
Prey	B-Application
,	O
Nexuiz	B-Application
,	O
Warsow	B-Application
,	O
Portal	B-Application
and	O
American	O
McGee	O
's	O
Alice.	O
<	O
br/	O
>Major	O
support	O
improvements	O
for	O
Star	O
Trek	O
:	O
Elite	O
Force	O
II.	O
<	O
br/	O
>Ability	O
to	O
load	O
and	O
save	O
.ase	O
,	O
.stl	O
,	O
.md5	O
models	O
,	O
Half-Life	B-Application
1	I-Application
models	O
and	O
Medal	B-Application
of	I-Application
Honor	I-Application
:	I-Application
Allied	I-Application
Assault	I-Application
models	O
,	O
and	O
load	O
.gr2	B-Algorithm
.	O
</s>
<s>
There	O
were	O
plans	O
to	O
make	O
a	O
C++	B-Language
version	O
of	O
QuArK	B-Language
that	O
reuses	O
the	O
existing	O
Python	B-Language
files	O
,	O
plans	O
to	O
port	O
the	O
program	B-Application
to	O
macOS	B-Application
and	O
Linux	B-Application
,	O
and	O
plans	O
to	O
do	O
a	O
complete	O
rewrite	O
of	O
QuArK	B-Language
in	O
C++	B-Language
and	O
Python	B-Language
,	O
but	O
development	O
on	O
all	O
these	O
projects	O
has	O
ceased	O
.	O
</s>
<s>
QuArK	B-Language
comes	O
with	O
several	O
stand-alone	O
utilities	B-Application
:	O
</s>
<s>
QuArKSAS	O
:	O
The	O
QuArK	B-Language
Steam	O
Access	O
System	O
,	O
or	O
QuArKSAS	O
,	O
is	O
a	O
command-line	B-Application
program	I-Application
that	O
allows	O
the	O
user	O
to	O
extract	O
files	O
from	O
the	O
Steam	O
filesystem	O
.	O
</s>
<s>
grnreader.exe	O
:	O
Used	O
to	O
convert	O
.gr2	B-Algorithm
files	O
into	O
QuArK-loadable	O
.ms	O
files	O
.	O
</s>
<s>
is	O
a	O
custom	O
installer	O
to	O
allow	O
people	O
to	O
quickly	O
and	O
easily	O
develop	O
a	O
3D	O
game	O
using	O
QuArK	B-Language
.	O
</s>
<s>
It	O
combines	O
QuArK	B-Language
,	O
Lazarus	B-Language
and	O
GLScene	B-Application
.	O
</s>
<s>
is	O
an	O
install	O
for	O
QuArK	B-Language
that	O
includes	O
as	O
the	O
default	O
compiler	O
and	O
does	O
n't	O
need	O
Quake	B-Application
installed	O
.	O
</s>
<s>
The	O
Garage	O
Games	O
website	O
offered	O
a	O
custom	O
installer	O
,	O
which	O
will	O
install	O
QuArK	B-Language
with	O
some	O
additional	O
files	O
so	O
it	O
's	O
ready	O
to	O
go	O
and	O
configured	O
for	O
Torque	O
:	O
.	O
</s>
