<s>
Art	B-Language
of	I-Language
Illusion	I-Language
is	O
a	O
free	B-Application
software	I-Application
,	O
and	O
open	B-License
source	I-License
software	O
package	O
for	O
making	O
3D	O
graphics	O
.	O
</s>
<s>
Art	B-Language
of	I-Language
Illusion	I-Language
can	O
also	O
export	O
models	O
for	O
3D	O
printing	O
in	O
the	O
STL	O
file	O
format	O
.	O
</s>
<s>
Art	B-Language
of	I-Language
Illusion	I-Language
is	O
3D	O
graphics	O
software	O
,	O
such	O
as	O
Blender	B-Application
and	O
Wings	B-Application
3D	I-Application
(	O
which	O
are	O
both	O
free	B-Application
software	I-Application
)	O
,	O
and	O
Autodesk	B-Language
3ds	I-Language
Max	I-Language
and	O
Autodesk	B-Language
Maya	I-Language
(	O
which	O
are	O
both	O
proprietary	B-Application
software	I-Application
)	O
.	O
</s>
<s>
Although	O
some	O
sources	O
seem	O
to	O
confuse	O
3D	O
modeling	O
with	O
computer-aided	B-Application
design	I-Application
(	O
CAD	B-Application
)	O
,	O
Art	B-Language
of	I-Language
Illusion	I-Language
does	O
not	O
provide	O
any	O
CAD-like	O
features	O
,	O
such	O
as	O
parametric	O
modeling	O
.	O
</s>
<s>
Some	O
user	O
reviews	O
describe	O
Art	B-Language
of	I-Language
Illusion	I-Language
as	O
'	O
intuitive	O
 '	O
'	O
straight	O
forward	O
to	O
learn	O
 '	O
and	O
'	O
good	O
candidate	O
for	O
the	O
first	O
3D	O
modelling	O
tool	O
 '	O
,	O
while	O
some	O
characterize	O
it	O
as	O
'	O
software	O
for	O
experienced	O
CAD	B-Application
users	O
 '	O
or	O
taking	O
plenty	O
of	O
time	O
to	O
figure	O
out	O
.	O
</s>
<s>
Art	B-Language
of	I-Language
Illusion	I-Language
has	O
been	O
entirely	O
written	O
in	O
Java	B-Language
.	O
</s>
<s>
The	O
development	O
of	O
the	O
software	O
was	O
started	O
in	O
1999	O
by	O
Peter	B-Language
Eastman	I-Language
.	O
</s>
<s>
Lucas	O
took	O
the	O
development	O
from	O
SourceForge	B-Application
to	O
GitHub	B-Application
and	O
the	O
SourceForge-site	O
serves	O
as	O
the	O
software	O
's	O
discussion	O
forum	O
and	O
delivery	O
channel	O
.	O
</s>
<s>
Art	B-Language
of	I-Language
Illusion	I-Language
consists	O
of	O
the	O
core	O
software	O
and	O
various	O
feature	O
extensions	O
,	O
which	O
come	O
as	O
plugins	B-Application
and	O
scripts	B-Language
.	O
</s>
<s>
Scripts	B-Language
are	O
used	O
either	O
to	O
create	O
and	O
edit	O
objects	O
or	O
to	O
modify	O
behavior	O
of	O
the	O
software	O
.	O
</s>
<s>
Plugins	B-Application
can	O
add	O
features	O
,	O
like	O
tools	O
and	O
object	O
types	O
to	O
the	O
software	O
or	O
alter	O
the	O
user	O
interface	O
.	O
</s>
<s>
Some	O
of	O
the	O
core	O
features	O
like	O
the	O
renderers	O
are	O
implemented	O
as	O
plugins	B-Application
as	O
well	O
to	O
facilitate	O
maintenance	O
.	O
</s>
<s>
Art	B-Language
of	I-Language
Illusion	I-Language
provides	O
several	O
types	O
of	O
objects	O
with	O
their	O
specific	O
editing	O
tools	O
for	O
modeling	O
:	O
Primitives	O
(	O
cube	O
,	O
sphere	O
,	O
cylinder	O
)	O
,	O
Curve	O
,	O
Tube	O
,	O
Spline	O
mesh	O
,	O
Triangle	O
mesh	O
,	O
Polygon	O
mesh	O
(	O
plugin	B-Application
)	O
,	O
Implicit	O
object	O
(	O
plugin	B-Application
)	O
,	O
Hologram	O
(	O
plugin	B-Application
)	O
.	O
</s>
<s>
The	O
Ray	B-Algorithm
Tracer	I-Algorithm
renderer	I-Algorithm
provides	O
anti-aliasing	B-Algorithm
,	O
soft	O
shadows	O
,	O
depth	O
of	O
field	O
,	O
transparent	O
background	O
,	O
photon	B-Application
mapping	I-Application
caustics	O
and	O
subsurface	B-Algorithm
scattering	I-Algorithm
.	O
</s>
<s>
Art	B-Language
of	I-Language
Illusion	I-Language
supports	O
two	O
scripting	B-Language
languages	I-Language
,	O
BeanShell	B-Language
and	O
Groovy	B-Application
and	O
it	O
comes	O
with	O
a	O
basic	O
level	O
text	B-Application
editor	I-Application
for	O
writing	O
,	O
editing	O
and	O
running	O
scripts	B-Language
.	O
</s>
<s>
There	O
are	O
three	O
different	O
types	O
of	O
scripts	B-Language
each	O
for	O
their	O
specific	O
purpose	O
:	O
Tool	O
scripts	B-Language
,	O
Scripted	O
objects	O
and	O
Start-up	O
scripts	B-Language
.	O
</s>
<s>
Tool	O
scripts	B-Language
operate	O
at	O
the	O
same	O
level	O
as	O
the	O
commandSelected( )	O
function	O
of	O
a	O
modeling	O
tool	O
.	O
</s>
<s>
This	O
means	O
that	O
with	O
only	O
minor	O
changes	O
the	O
code	O
from	O
a	O
script	O
could	O
be	O
placed	O
into	O
a	O
more	O
permanent	O
plugin	B-Application
,	O
or	O
the	O
code	O
from	O
a	O
plugin	B-Application
could	O
be	O
pulled	O
out	O
into	O
a	O
script	O
to	O
allow	O
for	O
changing	O
the	O
code	O
within	O
the	O
environment	O
.	O
</s>
<s>
Art	B-Language
of	I-Language
Illusion	I-Language
provides	O
a	O
programming	O
interface	O
for	O
plugins	B-Application
.	O
</s>
<s>
The	O
code	O
for	O
the	O
plugins	B-Application
are	O
written	O
in	O
Java	B-Language
like	O
the	O
core	O
software	O
.	O
</s>
<s>
This	O
code	O
is	O
combined	O
with	O
an	O
extensions.xml	O
file	O
that	O
describes	O
what	O
the	O
plugin	B-Application
does	O
and	O
most	O
importantly	O
,	O
which	O
class	O
implements	O
it	O
.	O
</s>
<s>
In	O
some	O
cases	O
the	O
XML	O
file	O
specifies	O
methods	O
that	O
are	O
exported	O
for	O
use	O
by	O
other	O
plugins	B-Application
or	O
specifies	O
plugins	B-Application
that	O
are	O
imported	O
for	O
use	O
by	O
the	O
plugin	B-Application
.	O
</s>
<s>
Tags	O
used	O
in	O
the	O
extensions.xml	O
file	O
are	O
Author	O
,	O
Date	O
,	O
Plugin	B-Application
,	O
Export	O
,	O
Import	O
,	O
Description	O
,	O
Comments	O
,	O
History	O
,	O
and	O
Resource	O
.	O
</s>
<s>
The	O
compiled	O
.jar-files	O
are	O
added	O
to	O
the	O
Plugins	B-Application
folder	O
in	O
Art	B-Language
of	I-Language
Illusion	I-Language
root	O
directory	O
and	O
they	O
are	O
effective	O
immediately	O
at	O
the	O
next	O
start	O
up	O
.	O
</s>
<s>
A	O
large	O
number	O
of	O
plugins	B-Application
have	O
been	O
developed	O
for	O
Art	B-Language
of	I-Language
Illusion	I-Language
that	O
are	O
available	O
on	O
the	O
scripts	B-Language
and	O
plugin	B-Application
repository	O
.	O
</s>
<s>
These	O
include	O
the	O
Scripts	B-Language
and	O
Plugins	B-Application
Manager	O
,	O
that	O
is	O
used	O
to	O
download	O
and	O
update	O
the	O
extension	O
parts	O
.	O
</s>
<s>
The	O
types	O
of	O
plugins	B-Application
that	O
can	O
be	O
created	O
for	O
Art	B-Language
of	I-Language
Illusion	I-Language
are	O
,	O
Plugin	B-Application
,	O
Renderer	O
,	O
Translator	O
,	O
ModellingTool	O
,	O
Texture	O
,	O
Material	O
,	O
TextureMapping	O
,	O
MaterialMapping	O
,	O
ImageFilter	O
,	O
Module	O
.	O
</s>
<s>
Plugin	B-Application
—	O
A	O
general	O
plugin	B-Application
type	O
used	O
for	O
all	O
plugins	B-Application
that	O
do	O
n't	O
fit	O
one	O
of	O
the	O
other	O
categories	O
.	O
</s>
<s>
Renderer	O
—	O
Methods	O
used	O
to	O
render	O
a	O
scene	O
,	O
such	O
as	O
a	O
special	O
ray	B-Algorithm
tracer	I-Algorithm
.	O
</s>
<s>
A	O
cloth	O
simulator	O
does	O
not	O
come	O
with	O
the	O
basic	O
install	O
package	O
but	O
the	O
capability	O
is	O
available	O
as	O
a	O
plugin	B-Application
.	O
</s>
<s>
The	O
second	O
edition	O
of	O
Extending	O
Art	B-Language
of	I-Language
Illusion	I-Language
includes	O
the	O
ClothMaker	O
plugin	B-Application
as	O
one	O
of	O
the	O
examples	O
in	O
the	O
book	O
.	O
</s>
<s>
The	O
ClothMaker	O
plugin	B-Application
makes	O
use	O
of	O
the	O
Distortion	O
class	O
.	O
</s>
<s>
The	O
user	O
then	O
selects	O
the	O
command	O
to	O
tell	O
Art	B-Language
of	I-Language
Illusion	I-Language
to	O
generate	O
the	O
cloth	O
simulation	O
.	O
</s>
<s>
Art	B-Language
of	I-Language
Illusion	I-Language
does	O
not	O
have	O
any	O
sound/audio	O
processing	O
capabilities	O
.	O
</s>
<s>
Art	B-Language
of	I-Language
Illusion	I-Language
scene	O
files	O
are	O
saved	O
in	O
their	O
specific	O
format	O
,	O
marked	O
by	O
the	O
extension	O
"	O
.aoi	O
"	O
.	O
</s>
<s>
The	O
core	O
package	O
contains	O
a	O
built-in	O
import	O
function	O
for	O
Wavefront	O
(	O
.obj	O
)	O
and	O
export	O
functions	O
for	O
Wavefront	O
(	O
.obj	O
)	O
,	O
Povray	B-Application
3.5	O
(	O
.pov	B-Application
)	O
and	O
VRML	O
(	O
.wrl	O
)	O
.	O
</s>
<s>
Additional	O
translators	O
are	O
available	O
as	O
plugins	B-Application
.	O
</s>
<s>
Plugins	B-Application
may	O
not	O
have	O
complete	O
sets	O
of	O
translations	O
available	O
.	O
</s>
<s>
Art	B-Language
of	I-Language
Illusion	I-Language
3.2.0	O
runs	O
on	O
Java	B-Language
Virtual	I-Language
Machine	I-Language
(	O
JVM	B-Language
)	O
versions	O
8	O
or	O
later	O
.	O
</s>
<s>
Assembly	O
packages	O
are	O
available	O
for	O
Mac	B-Application
OS	I-Application
,	O
Windows	O
and	O
Linux	B-Application
and	O
there	O
is	O
a	O
generic	O
zip	B-General_Concept
package	I-General_Concept
available	O
for	O
other	O
systems	O
or	O
for	O
cases	O
,	O
where	O
a	O
self-extracting	B-General_Concept
package	O
can	O
not	O
be	O
used	O
.	O
</s>
<s>
By	O
default	O
Art	B-Language
of	I-Language
Illusion	I-Language
allocates	O
16	O
GB	O
of	O
memory	O
for	O
the	O
JVM	B-Language
.	O
</s>
<s>
This	O
can	O
be	O
changed	O
by	O
launching	O
Java	B-Language
by	O
a	O
command-line	B-Application
.	O
</s>
<s>
Art	B-Language
of	I-Language
Illusion	I-Language
is	O
capable	O
of	O
multithreading	O
and	O
therefore	O
utilizing	O
multicore	O
processors	O
,	O
when	O
rendering	O
images	O
.	O
</s>
<s>
Art	B-Language
of	I-Language
Illusion	I-Language
is	O
designed	O
to	O
have	O
full	O
functionality	O
either	O
with	O
a	O
single	O
button	O
mouse	B-Device
or	O
a	O
3-button	O
mouse	B-Device
with	O
a	O
scroll	O
wheel	O
.	O
</s>
<s>
A	O
keyboard	O
with	O
a	O
numberpad	B-Device
is	O
recommended	O
as	O
some	O
of	O
the	O
keyboard	O
shortcuts	O
are	O
assigned	O
to	O
the	O
number	O
keys	O
.	O
</s>
<s>
An	O
interface	O
for	O
a	O
3D-controller	O
,	O
such	O
as	O
one	O
of	O
3Dconnexion	O
devices	O
is	O
available	O
as	O
a	O
plugin	B-Application
.	O
</s>
