<s>
BVE	B-Application
Trainsim	I-Application
(	O
originally	O
Boso	B-Application
View	I-Application
Express	I-Application
)	O
is	O
a	O
Japanese	O
three-dimensional	O
computer-based	O
train	B-General_Concept
simulator	I-General_Concept
.	O
</s>
<s>
BVE	B-Application
Trainsim	I-Application
was	O
designed	O
and	O
developed	O
by	O
Takashi	O
"	O
Mackoy	O
"	O
Kojima	O
starting	O
in	O
1996	O
with	O
the	O
original	O
program	O
name	O
coming	O
from	O
the	O
Japanese	O
255	O
series	O
multiple	O
unit	O
trains	O
found	O
in	O
routes	O
in	O
Japan	O
.	O
</s>
<s>
Although	O
the	O
internal	O
working	O
of	O
the	O
BVE	B-Application
Trainsim	I-Application
program	O
itself	O
cannot	O
be	O
modified	O
,	O
additional	O
routes	O
and	O
train	O
cab	O
views	O
can	O
be	O
added	O
via	O
a	O
number	O
of	O
text-based	O
configuration	O
files	O
.	O
</s>
<s>
BVE	B-Application
Trainsim	I-Application
1	O
was	O
released	O
in	O
1996	O
as	O
an	O
Alpha	O
version	O
under	O
the	O
name	O
Boso	B-Application
View	I-Application
Express	I-Application
and	O
1999	O
as	O
a	O
Beta	O
Version	O
.	O
</s>
<s>
This	O
version	O
,	O
the	O
first	O
version	O
of	O
BVE	O
to	O
be	O
produced	O
,	O
had	O
an	O
interface	O
that	O
was	O
similar	O
to	O
BVE	B-Application
Trainsim	I-Application
2	O
,	O
but	O
did	O
not	O
have	O
a	O
logo	O
.	O
</s>
<s>
BVE	B-Application
Trainsim	I-Application
2	O
featured	O
ATS	O
and	O
ATC	O
.	O
</s>
<s>
Unreleased	O
and	O
later	O
cancelled	O
,	O
BVE	B-Application
Trainsim	I-Application
3	O
was	O
originally	O
started	O
in	O
2003	O
as	O
an	O
improvement	O
over	O
BVE	B-Application
Trainsim	I-Application
2	O
,	O
but	O
was	O
eventually	O
stopped	O
due	O
to	O
problems	O
encountered	O
with	O
development	O
of	O
the	O
aforementioned	O
program	O
.	O
</s>
<s>
BVE	B-Application
Trainsim	I-Application
4	O
,	O
released	O
in	O
2005	O
,	O
added	O
support	O
for	O
plugins	O
to	O
simulate	O
train	O
safety	O
systems	O
other	O
than	O
ATS	O
and	O
ATC	O
.	O
</s>
<s>
The	O
London	O
Transport	O
Museum	O
used	O
BVE	B-Application
Trainsim	I-Application
4	O
to	O
provide	O
a	O
simulation	O
platform	O
,	O
within	O
a	O
mock	O
underground	O
rolling	O
stock	O
of	O
the	O
London	O
Underground	O
1996	O
Stock	O
,	O
before	O
later	O
porting	O
to	O
openBVE	O
in	O
2010	O
.	O
</s>
<s>
BVE	B-Application
Trainsim	I-Application
5	O
was	O
officially	O
released	O
on	O
5	O
September	O
2011	O
as	O
the	O
successor	O
to	O
BVE	O
4	O
.	O
</s>
<s>
In	O
July	O
2008	O
,	O
the	O
developer	O
stated	O
that	O
he	O
was	O
rewriting	O
BVE	B-Application
Trainsim	I-Application
from	O
scratch	O
because	O
the	O
previously	O
released	O
versions	O
(	O
BVE	O
2	O
and	O
BVE	O
4	O
)	O
do	O
not	O
work	O
with	O
DirectX	B-Application
9	I-Application
,	O
and	O
that	O
the	O
new	O
version	O
would	O
support	O
Windows	B-Application
Vista	I-Application
and	O
Windows	B-Device
7	I-Device
.	O
</s>
<s>
BVE	B-Application
Trainsim	I-Application
6	O
Release	O
Candidate	O
was	O
announced	O
and	O
made	O
available	O
to	O
the	O
public	O
as	O
the	O
successor	O
to	O
BVE	O
5	O
on	O
June	O
21	O
,	O
2020	O
.	O
</s>
<s>
Full	O
release	O
of	O
BVE	B-Application
Trainsim	I-Application
6	O
was	O
made	O
available	O
on	O
September	O
23	O
,	O
2020	O
.	O
</s>
<s>
BVE	O
6	O
is	O
released	O
as	O
a	O
64-bit	O
application	O
,	O
allowing	O
for	O
scenarios	O
with	O
larger	O
data	O
sizes	O
and	O
support	O
for	O
Windows	B-Operating_System
10	I-Operating_System
and	O
Windows	B-Device
8.1	I-Device
.	O
</s>
<s>
openBVE	O
is	O
an	O
independently	O
developed	O
open-source	B-Application
train	B-General_Concept
simulator	I-General_Concept
.	O
</s>
<s>
Although	O
the	O
name	O
and	O
logo	O
were	O
originally	O
based	O
on	O
BVE	B-Application
Trainsim	I-Application
,	O
openBVE	O
is	O
free	B-License
and	I-License
open-source	I-License
software	I-License
developed	O
and	O
written	O
from	O
scratch	O
.	O
</s>
<s>
Internally	O
,	O
openBVE	O
makes	O
use	O
of	O
OpenGL	B-Application
for	O
rendering	O
,	O
as	O
well	O
as	O
OpenAL	B-Application
for	O
three-dimensional	O
positional	O
audio	O
.	O
</s>
<s>
It	O
is	O
currently	O
distributed	O
in	O
the	O
public	O
domain	O
,	O
along	O
with	O
full	O
C#	B-Application
and	O
C	B-Language
source	O
code	O
.	O
</s>
<s>
openBVE	O
was	O
originally	O
conceived	O
in	O
2009	O
,	O
as	O
a	O
free	B-License
and	I-License
open-source	I-License
simulator	O
,	O
capable	O
of	O
running	O
routes	O
from	O
BVE	B-Application
Trainsim	I-Application
,	O
but	O
with	O
the	O
eventual	O
aim	O
of	O
loading	O
content	O
from	O
other	O
simulations	O
,	O
and	O
the	O
development	O
of	O
a	O
separate	O
route	O
format	O
.	O
</s>
<s>
Despite	O
the	O
lacking	O
developer	O
support	O
,	O
around	O
2009	O
openBVE	O
was	O
capable	O
of	O
running	O
most	O
BVE	B-Application
Trainsim	I-Application
routes	O
correctly	O
and	O
also	O
supported	O
additional	O
features	O
,	O
including	O
an	O
exterior	O
view	O
,	O
animated	O
3D	O
cabs	O
,	O
and	O
animated	O
objects	O
.	O
</s>
<s>
To	O
end	O
the	O
stalled	O
development	O
in	O
October	O
2015	O
a	O
continuation	B-Application
of	O
OpenBVE	O
was	O
announced	O
on	O
BVEWorldwide	O
by	O
another	O
group	O
of	O
developers	O
.	O
</s>
<s>
The	O
group	O
transferred	O
the	O
development	O
and	O
codebase	O
to	O
a	O
new	O
repository	O
on	O
GitHub	B-Application
.	O
</s>
<s>
To	O
date	O
(	O
May	O
2017	O
)	O
,	O
numerous	O
additions	O
were	O
made	O
by	O
the	O
project	O
:	O
new	O
parameters	O
for	O
animated	O
objects	O
and	O
the	O
plugin	O
API	O
,	O
several	O
unfixed	O
errata	O
from	O
the	O
previous	O
openBVE	O
1.4.3	O
errata	O
fixed	O
,	O
Dynamic	O
lighting	O
and	O
backgrounds	O
added	O
,	O
and	O
a	O
basic	O
package	B-Application
format	I-Application
has	O
been	O
added	O
to	O
make	O
the	O
installation	O
of	O
addons	O
easier	O
.	O
</s>
