<s>
Blue	B-Application
Moon	I-Application
Rendering	I-Application
Tools	I-Application
,	O
or	O
BMRT	B-Application
,	O
was	O
one	O
of	O
the	O
most	O
famous	O
RenderMan-compliant	O
photorealistic	O
rendering	O
systems	O
and	O
was	O
a	O
precursor	O
to	O
NVIDIA	O
's	O
Gelato	B-Application
renderer	I-Application
.	O
</s>
<s>
It	O
was	O
distributed	O
as	O
freeware	B-License
.	O
</s>
<s>
BMRT	B-Application
was	O
a	O
popular	O
renderer	O
with	O
students	O
and	O
other	O
people	O
who	O
were	O
trying	O
to	O
learn	O
the	O
RenderMan	B-Application
interface	I-Application
.	O
</s>
<s>
It	O
also	O
had	O
some	O
features	O
PhotoRealistic	B-Application
RenderMan	I-Application
did	O
not	O
have	O
at	O
the	O
time	O
,	O
for	O
example	O
,	O
ray	B-Algorithm
tracing	I-Algorithm
,	O
radiosity	O
,	O
volume	O
rendering	O
,	O
and	O
area	O
lights	O
.	O
</s>
<s>
Even	O
Pixar	O
used	O
BMRT	B-Application
for	O
ray	B-Algorithm
tracing	I-Algorithm
before	O
PRMan	B-Application
had	O
such	O
features	O
.	O
</s>
<s>
According	O
to	O
Exluna	O
,	O
it	O
was	O
used	O
for	O
3D	O
rendering	O
in	O
movies	O
such	O
as	O
A	B-Application
Bug	I-Application
's	I-Application
Life	I-Application
,	O
Stuart	O
Little	O
,	O
The	O
Cell	O
,	O
Hollow	O
Man	O
,	O
and	O
Woman	O
on	O
Top	O
.	O
</s>
<s>
BMRT	B-Application
was	O
originally	O
developed	O
by	O
Larry	O
Gritz	O
while	O
he	O
was	O
at	O
Cornell	O
University	O
.	O
</s>
<s>
He	O
developed	O
it	O
during	O
the	O
early	O
1990s	O
,	O
first	O
published	O
it	O
in	O
1994	O
,	O
and	O
was	O
subsequently	O
hired	O
by	O
Pixar	O
to	O
work	O
on	O
their	O
PhotoRealistic	B-Application
RenderMan	I-Application
product	O
.	O
</s>
<s>
The	O
last	O
version	O
of	O
the	O
renderer	O
under	O
the	O
BMRT	B-Application
name	O
was	O
2.6	O
,	O
released	O
in	O
November	O
2000	O
.	O
</s>
<s>
The	O
first	O
version	O
of	O
Entropy	O
,	O
BMRT	B-Application
's	O
successor	O
,	O
was	O
3.0	O
,	O
released	O
in	O
July	O
2001	O
.	O
</s>
<s>
In	O
2000	O
,	O
Gritz	O
left	O
Pixar	O
to	O
form	O
a	O
company	O
called	O
Exluna	O
,	O
whose	O
flagship	O
product	O
was	O
Entropy	O
,	O
a	O
RenderMan	B-Application
renderer	O
based	O
on	O
BMRT	B-Application
with	O
additional	O
features	O
and	O
optimizations	O
.	O
</s>
<s>
The	O
case	O
eventually	O
settled	O
,	O
leading	O
to	O
the	O
discontinuation	O
of	O
BMRT	B-Application
and	O
Entropy	O
.	O
</s>
<s>
Gritz	O
and	O
other	O
Exluna	O
employees	O
stayed	O
at	O
NVIDIA	O
to	O
develop	O
the	O
Gelato	B-Application
renderer	I-Application
.	O
</s>
