<s>
Project	B-Language
Looking	I-Language
Glass	I-Language
is	O
a	O
now	O
inactive	O
free	B-Application
software	I-Application
project	O
under	O
the	O
GPL	B-License
to	O
create	O
an	O
innovative	O
3D	O
desktop	O
environment	O
for	O
Linux	B-Application
,	O
Solaris	B-Application
,	O
and	O
Windows	B-Application
.	O
</s>
<s>
Looking	O
Glass	O
is	O
programmed	O
in	O
the	O
Java	B-Language
language	I-Language
using	O
the	O
Java	B-Language
3D	I-Language
system	O
to	O
remain	O
platform	O
independent	O
.	O
</s>
<s>
There	O
is	O
a	O
Live	O
CD	O
available	O
from	O
Project	B-Language
Looking	I-Language
Glass	I-Language
.	O
</s>
<s>
The	O
Looking	O
Glass	O
environment	O
is	O
also	O
included	O
on	O
a	O
Live	O
DVD	O
(	O
FunWorks	O
2007	O
edition	O
)	O
from	O
the	O
Granular	O
Linux	B-Application
project	O
.	O
</s>
<s>
Looking	O
Glass	O
was	O
first	O
developed	O
by	O
Hideya	B-Language
Kawahara	I-Language
,	O
a	O
Sun	O
programmer	B-Application
who	O
wrote	O
it	O
in	O
his	O
spare	O
time	O
on	O
a	O
Linux	B-Application
laptop	O
.	O
</s>
<s>
One	O
of	O
its	O
most	O
notable	O
features	O
is	O
the	O
creation	O
of	O
reversible	O
windows	B-Application
.	O
</s>
<s>
This	O
capability	O
can	O
be	O
used	O
for	O
features	O
like	O
allowing	O
the	O
user	O
to	O
write	O
notes	O
and	O
comments	O
on	O
the	O
windows	B-Application
 '	O
backs	O
,	O
or	O
displaying	O
application	O
dialogs	O
without	O
risking	O
their	O
being	O
detached	O
from	O
the	O
application	O
they	O
relate	O
to	O
.	O
</s>
<s>
All	O
windows	B-Application
start	O
by	O
looking	O
like	O
a	O
normal	O
2D	O
or	O
2.5D	O
window	O
,	O
but	O
can	O
be	O
manipulated	O
as	O
thin	O
slate-like	O
3D	O
objects	O
which	O
can	O
be	O
set	O
at	O
any	O
angle	O
or	O
turned	O
completely	O
around	O
by	O
the	O
user	O
.	O
</s>
<s>
One	O
technique	O
became	O
popular	O
by	O
Apple	O
's	O
Dashboard	B-Application
widgets	I-Application
is	O
configuration	O
of	O
an	O
application	O
(	O
widget	O
)	O
by	O
flipping	O
its	O
visual	O
and	O
performing	O
updates	O
on	O
the	O
backside	O
of	O
it	O
.	O
</s>
<s>
The	O
visual	O
of	O
Apple	O
's	O
macOS	B-Application
Dock	O
became	O
similar	O
to	O
Looking	O
Glass	O
's	O
look	O
when	O
Leopard	B-Application
was	O
released	O
.	O
</s>
<s>
Windows	B-Device
7	I-Device
implements	O
a	O
feature	O
for	O
window	O
selection	O
that	O
hides	O
other	O
windows	B-Application
than	O
the	O
one	O
that	O
the	O
user	O
placed	O
the	O
mouse	O
cursor	O
on	O
a	O
thumbnail	O
above	O
the	O
taskbar	O
.	O
</s>
<s>
Looking	O
Glass	O
is	O
similar	O
to	O
the	O
prototype	O
from	O
Microsoft	O
Research	O
and	O
the	O
open	O
source	O
Croquet	B-Protocol
project	I-Protocol
based	O
on	O
Squeak	B-Operating_System
in	O
terms	O
of	O
allowance	O
for	O
the	O
user	O
to	O
manipulate	O
applications	O
(	O
including	O
existing	O
2D	O
applications	O
)	O
in	O
a	O
3D	O
space	O
.	O
</s>
<s>
Also	O
,	O
these	O
three	O
are	O
similar	O
as	O
they	O
are	O
meant	O
to	O
work	O
on	O
adapted	O
or	O
enhanced	O
versions	O
of	O
existing	O
desktops	O
rather	O
than	O
re-designing	O
the	O
entire	O
graphical	B-Application
user	I-Application
interface	I-Application
from	O
scratch	O
,	O
an	O
approach	O
taken	O
by	O
many	O
Zooming	B-Application
User	I-Application
Interface	I-Application
projects	O
such	O
as	O
the	O
one	O
created	O
by	O
Jef	O
Raskin	O
.	O
</s>
<s>
While	O
many	O
window	O
managers	O
(	O
such	O
as	O
Microsoft	O
's	O
Desktop	O
Window	O
Manager	O
,	O
the	O
X	B-Operating_System
Window	I-Operating_System
System	I-Operating_System
based	O
Compiz	B-Language
,	O
and	O
macOS	B-Application
through	O
Core	B-Operating_System
Animation	I-Operating_System
)	O
can	O
utilize	O
3D	O
effects	O
,	O
these	O
merely	O
augment	O
a	O
conventional	O
2D	O
environment	O
.	O
</s>
