<s>
Kai	B-Operating_System
's	I-Operating_System
Power	I-Operating_System
Tools	I-Operating_System
are	O
a	O
set	O
of	O
API	B-General_Concept
plugins	O
created	O
by	O
the	O
German	O
computer	O
scientist	O
Kai	O
Krause	O
in	O
1992	O
that	O
were	O
designed	O
for	O
use	O
with	O
Adobe	B-Operating_System
Photoshop	I-Operating_System
and	O
Corel	B-Application
Photo-Paint	I-Application
.	O
</s>
<s>
Kai	B-Operating_System
's	I-Operating_System
Power	I-Operating_System
Tools	I-Operating_System
were	O
sold	O
to	O
Corel	O
in	O
2000	O
when	O
MetaCreations	O
was	O
closed	O
.	O
</s>
<s>
The	O
phrase	O
Kai	B-Operating_System
's	I-Operating_System
Power	I-Operating_System
Tools	I-Operating_System
is	O
often	O
abbreviated	O
to	O
KPT	O
.	O
</s>
<s>
There	O
are	O
various	O
versions	O
of	O
Kai	B-Operating_System
's	I-Operating_System
Power	I-Operating_System
Tools	I-Operating_System
.	O
</s>
<s>
The	O
KPT	O
Convolver	O
is	O
a	O
mathematics	O
based	O
filter	B-Application
;	O
the	O
level	O
of	O
precision	O
and	O
varying	O
effects	O
can	O
be	O
achieved	O
by	O
using	O
numerical	O
values	O
of	O
colour	O
,	O
tint	O
,	O
hue	B-Language
,	O
saturation	O
,	O
contrast	O
,	O
brightness	O
,	O
luminosity	O
,	O
and	O
posterize	B-Algorithm
.	O
</s>
<s>
To	O
a	O
large	O
extent	O
,	O
with	O
its	O
draggable	O
distortion	O
handles	O
and	O
its	O
moving	O
,	O
scaling	O
and	O
rotating	O
options	O
,	O
this	O
simply	O
duplicates	O
Adobe	B-Operating_System
Photoshop	I-Operating_System
's	I-Operating_System
Free	O
Transform	O
capabilities	O
.	O
</s>
<s>
KPT	O
6	O
will	O
then	O
preview	O
the	O
animation	O
and	O
output	O
it	O
to	O
various	O
sizes	O
in	O
avi	O
or	O
mov	B-Application
format	O
.	O
</s>
<s>
This	O
animation	O
capability	O
is	O
even	O
more	O
useful	O
with	O
the	O
KPT	O
Turbulence	O
filter	B-Application
.	O
</s>
<s>
This	O
is	O
another	O
distortion	O
filter	B-Application
,	O
but	O
one	O
that	O
treats	O
the	O
image	O
as	O
if	O
it	O
was	O
completely	O
liquid	O
.	O
</s>
<s>
The	O
KPT	O
Goo	O
filter	B-Application
is	O
used	O
to	O
produce	O
a	O
single	O
frame	O
freeform	O
liquid	O
distortion	O
.	O
</s>
<s>
This	O
filter	B-Application
is	O
available	O
both	O
with	O
KPT	O
6	O
and	O
the	O
standalone	O
version	O
.	O
</s>
<s>
It	O
can	O
use	O
any	O
external	O
image	O
for	O
the	O
basis	O
of	O
the	O
bump	O
map	O
or	O
alternatively	O
the	O
user	O
can	O
pick	O
out	O
the	O
hue	B-Language
,	O
saturation	O
,	O
luminance	O
or	O
red	O
,	O
green	O
,	O
or	O
blue	O
channel	O
of	O
the	O
current	O
image	O
.	O
</s>
<s>
The	O
filter	B-Application
can	O
be	O
used	O
for	O
anything	O
from	O
providing	O
an	O
oil-painting	O
feel	O
to	O
an	O
entire	O
image	O
,	O
to	O
giving	O
the	O
illusion	O
of	O
depth	O
to	O
a	O
selection	O
.	O
</s>
<s>
Also	O
producing	O
the	O
impression	O
of	O
depth	O
is	O
the	O
KPT	O
Gel	O
filter	B-Application
which	O
uses	O
various	O
paint	O
tools	O
to	O
synthesize	O
photo-realistic	O
3D	O
materials	O
such	O
as	O
metals	O
,	O
liquids	O
,	O
or	O
plastics	O
.	O
</s>
<s>
Gel	O
painting	O
is	O
very	O
different	O
from	O
traditional	O
2D	B-Algorithm
painting	O
as	O
the	O
brush	O
strokes	O
pool	O
together	O
when	O
they	O
touch	O
and	O
refract	O
the	O
underlying	O
image	O
.	O
</s>
<s>
The	O
opposite	O
is	O
true	O
of	O
the	O
Equalizer	O
filter	B-Application
,	O
which	O
is	O
used	O
for	O
applying	O
variations	O
on	O
sharpening	O
effects	O
.	O
</s>
<s>
The	O
filter	B-Application
has	O
three	O
modes	O
.	O
</s>
<s>
The	O
main	O
image	O
window	O
offers	O
three	O
tabs	O
for	O
editing	O
in	O
2D	B-Algorithm
and	O
3D	O
mode	O
and	O
for	O
setting	O
up	O
the	O
object	O
's	O
final	O
texture	O
.	O
</s>
<s>
Many	O
users	O
regard	O
this	O
filter	B-Application
as	O
being	O
the	O
most	O
impressive	O
because	O
it	O
acts	O
as	O
a	O
standalone	O
3D	O
rendering	O
tool	O
and	O
provides	O
control	O
over	O
everything	O
from	O
transparency	O
,	O
reflection	O
,	O
refraction	O
,	O
bump	O
mapping	O
through	O
to	O
multiple	O
light	O
sources	O
,	O
and	O
so	O
on	O
but	O
without	O
the	O
ability	O
to	O
create	O
or	O
edit	O
objects	O
.	O
</s>
<s>
The	O
final	O
filter	B-Application
,	O
KPT	O
SkyEffects	O
,	O
also	O
has	O
its	O
roots	O
in	O
Metacreations	O
 '	O
experience	O
with	O
3D	O
programs	O
such	O
as	O
Bryce	B-Application
and	O
RayDream	O
.	O
</s>
<s>
This	O
filter	B-Application
is	O
designed	O
to	O
simulate	O
the	O
interaction	O
between	O
the	O
light	O
from	O
the	O
sun	O
or	O
moon	O
with	O
no	O
less	O
than	O
six	O
atmospheric	O
layers	O
of	O
haze	O
,	O
fog	O
and	O
cloud	O
.	O
</s>
<s>
The	O
filter	B-Application
is	O
typical	O
of	O
the	O
KPT	O
6	O
collection	O
as	O
a	O
whole	O
:	O
at	O
times	O
the	O
interface	O
is	O
inspired	O
and	O
offers	O
the	O
ability	O
to	O
create	O
beautiful	O
reddening	O
sunsets	O
simply	O
by	O
interactively	O
dragging	O
the	O
sun	O
toward	O
the	O
horizon	O
,	O
producing	O
realistic	O
sunsets	O
and	O
moonscapes	O
.	O
</s>
<s>
Kai	B-Operating_System
's	I-Operating_System
Power	I-Operating_System
Tools	I-Operating_System
6	O
features	O
a	O
lens	O
flare	O
effect	O
for	O
precisely	O
managing	O
the	O
type	O
of	O
glow	O
,	O
halo	O
,	O
streaks	O
,	O
and	O
reflection	O
.	O
</s>
<s>
It	O
offers	O
random	O
noise	O
,	O
regular	O
dots	O
or	O
reticulated	O
voronoi	B-Architecture
patterns	I-Architecture
or	O
a	O
bitmap	O
image	O
itself	O
as	O
the	O
seed	O
.	O
</s>
