<s>
TouchDesigner	B-Language
is	O
a	O
node	O
based	O
visual	B-Language
programming	I-Language
language	I-Language
for	O
real	B-General_Concept
time	I-General_Concept
interactive	O
multimedia	O
content	O
,	O
developed	O
by	O
the	O
Toronto-based	O
company	O
Derivative	O
.	O
</s>
<s>
In	O
2000	O
Hermanovic	O
used	O
the	O
Houdini	B-Application
4.1	O
code	O
base	O
as	O
the	O
initial	O
scaffolding	O
for	O
the	O
TouchDesigner	B-Language
.	O
</s>
<s>
From	O
2002	O
to	O
2007	O
TouchDesigner	B-Language
's	O
release	O
title	O
adopted	O
the	O
trailing	O
007	O
to	O
017	O
digits	O
to	O
indicate	O
its	O
versioning	O
.	O
</s>
<s>
Finally	O
in	O
2008	O
Derivative	O
released	O
a	O
beta	O
version	O
of	O
the	O
platform	O
as	O
TouchDesigner	B-Language
077	O
,	O
a	O
rewrite	O
of	O
its	O
previous	O
versions	O
that	O
incorporates	O
a	O
fully	O
procedural	O
OpenGL	O
compositing	O
and	O
effects	O
pipeline	O
.	O
</s>
<s>
TouchDesigner	B-Language
covers	O
several	O
major	O
areas	O
of	O
2D	O
and	O
3D	O
production	O
,	O
including	O
:	O
</s>
<s>
Operators	O
are	O
the	O
building	O
blocks	O
in	O
a	O
TouchDesigner	B-Language
project	O
.	O
</s>
<s>
DAT	O
Data	O
operators	O
are	O
for	O
ASCII	O
text	O
as	O
plain	O
text	O
,	O
scripts	O
,	O
XML	B-Protocol
,	O
and	O
tables	O
.	O
</s>
<s>
Component	O
operators	O
differ	O
from	O
other	O
operators	O
in	O
the	O
TouchDesigner	B-Language
family	O
as	O
they	O
are	O
capable	O
of	O
holding	O
networks	O
of	O
other	O
operators	O
.	O
</s>
<s>
These	O
components	O
encompass	O
both	O
3D	O
objects	O
and	O
interactive	O
panel	O
elements	O
used	O
when	O
designing	O
interfaces	O
in	O
TouchDesigner	B-Language
.	O
</s>
<s>
Channel	O
operators	O
are	O
the	O
backbone	O
of	O
the	O
control	O
system	O
in	O
TouchDesigner	B-Language
.	O
</s>
<s>
Surface	O
operators	O
are	O
objects	O
responsible	O
for	O
3D	O
operations	O
and	O
modeling	O
in	O
TouchDesigner	B-Language
.	O
</s>
<s>
This	O
is	O
perhaps	O
the	O
oldest	O
part	O
of	O
TouchDesigner	B-Language
and	O
has	O
its	O
roots	O
directly	O
in	O
the	O
Houdini	B-Application
4.1	O
code	O
base	O
.	O
</s>
<s>
Materials	O
are	O
used	O
as	O
a	O
part	O
of	O
the	O
3D	O
rendering	O
pipeline	O
in	O
TouchDesigner	B-Language
.	O
</s>
<s>
Data	O
operators	O
are	O
used	O
to	O
hold	O
text	O
,	O
tables	O
,	O
text-encoded	O
data	O
(	O
XML	B-Protocol
,	O
JSON	B-General_Concept
)	O
,	O
and	O
scripts	O
.	O
</s>
