<s>
Biosphere3D	B-Language
is	O
an	O
open-source	B-Application
project	O
that	O
targets	O
interactive	O
landscape	O
scenery	O
rendering	O
based	O
on	O
a	O
virtual	B-Application
globe	I-Application
.	O
</s>
<s>
The	O
software	O
is	O
released	O
under	O
the	O
MPL	B-License
license	I-License
and	O
developed	O
by	O
Zuse	O
Institute	O
Berlin	O
,	O
and	O
the	O
open-source	B-Application
community	O
for	O
use	O
on	O
personal	B-Device
computers	I-Device
.	O
</s>
<s>
Biosphere3D	B-Language
was	O
initially	O
developed	O
in	O
the	O
at	O
the	O
Zuse	O
Institute	O
Berlin	O
as	O
part	O
of	O
a	O
research	O
project	O
and	O
it	O
was	O
first	O
released	O
in	O
2007	O
.	O
</s>
<s>
Biosphere3D	B-Language
,	O
initially	O
funded	O
by	O
the	O
Federal	O
Ministry	O
of	O
Education	O
and	O
Research	O
(	O
Germany	O
)	O
within	O
the	O
R&D	O
project	O
‘	O
SILVISIO’	O
,	O
has	O
been	O
designed	O
as	O
a	O
pure	O
landscape	O
visualization	O
system	O
.	O
</s>
<s>
Modeling	O
of	O
landscape	O
features	O
occurs	O
in	O
external	O
applications	O
such	O
as	O
Geographic	B-Application
information	I-Application
systems	I-Application
(	O
GIS	B-Application
)	O
,	O
simulation	O
models	O
with	O
GIS	B-Application
data	O
output	O
,	O
and	O
3D	O
CAD	O
tools	O
such	O
as	O
SketchUp	B-Application
.	O
</s>
<s>
3D	O
scenes	O
are	O
composed	O
based	O
on	O
the	O
import	O
of	O
digital	B-Application
elevation	I-Application
model	I-Application
(	O
DEM	O
)	O
data	O
,	O
image	O
raster	O
files	O
,	O
ESRI	O
shapefiles	O
,	O
Collada	O
and	O
kml/kmz	B-Application
files	O
,	O
e.g.	O
</s>
<s>
from	O
SketchUp	B-Application
or	O
Trimble	O
3D	O
Warehouse	O
.	O
</s>
<s>
The	O
data	O
structures	O
used	O
by	O
Biosphere3D	B-Language
require	O
no	O
or	O
short	O
pre-processing	O
steps	O
;	O
so	O
all	O
data	O
can	O
be	O
modified	O
on	O
the	O
fly	O
with	O
minimal	O
turn	O
around	O
times	O
.	O
</s>
<s>
A	O
good	O
starting	O
point	O
is	O
a	O
multi	O
core	O
processor	O
,	O
8	O
GB	O
RAM	O
and	O
a	O
Graphics	B-Architecture
processing	I-Architecture
unit	I-Architecture
supporting	O
OpenGL	O
4.0	O
with	O
2	O
GB	O
memory	O
.	O
</s>
<s>
The	O
source	O
code	O
is	O
hosted	O
as	O
a	O
git	B-Application
repository	O
on	O
.	O
</s>
