<s>
The	O
High-Level	O
Shader	B-Language
Language	I-Language
or	O
High-Level	O
Shading	B-Language
Language	I-Language
(	O
HLSL	O
)	O
is	O
a	O
proprietary	O
shading	B-Language
language	I-Language
developed	O
by	O
Microsoft	O
for	O
the	O
Direct3D	B-Application
9	O
API	B-General_Concept
to	O
augment	O
the	O
shader	O
assembly	O
language	O
,	O
and	O
went	O
on	O
to	O
become	O
the	O
required	O
shading	B-Language
language	I-Language
for	O
the	O
unified	O
shader	O
model	O
of	O
Direct3D	B-Application
10	O
and	O
higher	O
.	O
</s>
<s>
HLSL	O
is	O
analogous	O
to	O
the	O
GLSL	B-Language
shading	B-Language
language	I-Language
used	O
with	O
the	O
OpenGL	B-Application
standard	O
.	O
</s>
<s>
It	O
is	O
very	O
similar	O
to	O
the	O
Nvidia	B-Language
Cg	I-Language
shading	B-Language
language	I-Language
,	O
as	O
it	O
was	O
developed	O
alongside	O
it	O
.	O
</s>
<s>
HLSL	O
programs	O
come	O
in	O
six	O
forms	O
:	O
pixel	O
shaders	O
(	O
fragment	O
in	O
GLSL	B-Language
)	O
,	O
vertex	O
shaders	O
,	O
geometry	O
shaders	O
,	O
compute	B-Operating_System
shaders	I-Operating_System
,	O
tessellation	B-Algorithm
shaders	O
(	O
Hull	O
and	O
Domain	O
shaders	O
)	O
,	O
and	O
ray	O
tracing	O
shaders	O
(	O
Ray	O
Generation	O
Shaders	O
,	O
Intersection	O
Shaders	O
,	O
Any	O
Hit/Closest	O
Hit/Miss	O
Shaders	O
)	O
.	O
</s>
<s>
Optionally	O
,	O
an	O
application	O
using	O
a	O
Direct3D	B-Application
10/11/12	O
interface	O
and	O
Direct3D	B-Application
10/11/12	O
hardware	O
may	O
also	O
specify	O
a	O
geometry	O
shader	O
.	O
</s>
<s>
This	O
shader	O
takes	O
as	O
its	O
input	O
some	O
vertices	O
of	O
a	O
primitive	O
(	O
triangle/line/point	O
)	O
and	O
uses	O
this	O
data	O
to	O
generate/degenerate	O
(	O
or	O
tessellate	B-Algorithm
)	O
additional	O
primitives	O
or	O
to	O
change	O
the	O
type	O
of	O
primitives	O
,	O
which	O
are	O
each	O
then	O
sent	O
to	O
the	O
rasterizer	O
.	O
</s>
<s>
Note	O
that	O
games	O
may	O
claim	O
to	O
require	O
a	O
certain	O
DirectX	B-Application
version	O
,	O
but	O
do	O
n't	O
necessarily	O
require	O
a	O
GPU	O
conforming	O
to	O
the	O
full	O
specification	O
of	O
that	O
version	O
,	O
as	O
developers	O
can	O
use	O
a	O
higher	O
DirectX	B-Application
API	B-General_Concept
version	O
to	O
target	O
lower-Direct3D-spec	O
hardware	O
;	O
for	O
instance	O
DirectX	B-Application
9	I-Application
exposes	O
features	O
of	O
DirectX7-level	O
hardware	O
that	O
DirectX7	B-Application
did	O
not	O
,	O
targeting	O
their	O
fixed-function	O
T&L	O
pipeline	O
.	O
</s>
<s>
1.4	O
2.02.0a2.0b3.0Shader	O
Model	O
3.0	O
,	O
Ashu	O
Rege	O
,	O
NVIDIA	O
Developer	O
Technology	O
Group	O
,	O
2004.4.0The	O
Direct3D	B-Application
10	O
System	O
,	O
David	O
Blythe	O
,	O
Microsoft	O
Corporation	O
,	O
2006	O
.	O
</s>
<s>
PS	O
1.0	O
—	O
Unreleased	O
3dfx	O
Rampage	O
,	O
DirectX	B-Application
8	I-Application
.	O
</s>
<s>
PS	O
1.1	O
—	O
GeForce	O
3	O
,	O
DirectX	B-Application
8	I-Application
.	O
</s>
<s>
PS	O
1.2	O
—	O
3Dlabs	O
Wildcat	O
VP	O
,	O
DirectX	B-Application
8.0a	I-Application
.	O
</s>
<s>
PS	O
1.3	O
—	O
GeForce	O
4	O
Ti	O
,	O
DirectX	B-Application
8.0a	I-Application
.	O
</s>
<s>
PS	O
1.4	O
—	O
Radeon	B-Device
8500-9250	I-Device
,	O
Matrox	B-Device
Parhelia	I-Device
,	O
DirectX	B-Application
8.1	I-Application
.	O
</s>
<s>
Shader	O
Model	O
2.0	O
—	O
Radeon	B-Device
9500-9800/X300	I-Device
-X600	I-Device
,	O
DirectX	B-Application
9	I-Application
.	O
</s>
<s>
Shader	O
Model	O
2.0a	O
—	O
GeForce	O
FX/PCX	O
-optimized	O
model	O
,	O
DirectX	B-Application
9.0a	I-Application
.	O
</s>
<s>
Shader	O
Model	O
2.0b	O
—	O
Radeon	O
X700-X850	O
shader	O
model	O
,	O
DirectX	B-Application
9.0b	I-Application
.	O
</s>
<s>
Shader	O
Model	O
3.0	O
—	O
Radeon	B-Device
X1000	I-Device
and	O
GeForce	O
6	O
,	O
DirectX	B-Application
9.0c	I-Application
.	O
</s>
<s>
Shader	O
Model	O
4.0	O
—	O
Radeon	O
HD	O
2000	O
and	O
GeForce	O
8	O
,	O
DirectX	B-Application
10	I-Application
.	O
</s>
<s>
Shader	O
Model	O
4.1	O
—	O
Radeon	O
HD	O
3000	O
and	O
GeForce	O
200	O
,	O
DirectX	B-Application
10.1	I-Application
.	O
</s>
<s>
Shader	O
Model	O
5.0	O
—	O
Radeon	O
HD	O
5000	O
and	O
GeForce	O
400	O
,	O
DirectX	B-Application
11	O
.	O
</s>
<s>
Shader	O
Model	O
5.1	O
—	O
GCN	O
1+	O
,	O
Fermi+	O
,	O
DirectX	B-Application
12	O
(	O
11_0+	O
)	O
with	O
WDDM	O
2.0	O
.	O
</s>
<s>
Shader	O
Model	O
6.0	O
—	O
GCN	O
1+	O
,	O
Kepler+	O
,	O
DirectX	B-Application
12	O
(	O
11_0+	O
)	O
with	O
WDDM	O
2.1	O
.	O
</s>
<s>
Shader	O
Model	O
6.1	O
—	O
GCN	O
1+	O
,	O
Kepler+	O
,	O
DirectX	B-Application
12	O
(	O
11_0+	O
)	O
with	O
WDDM	O
2.3	O
.	O
</s>
<s>
Shader	O
Model	O
6.2	O
—	O
GCN	O
1+	O
,	O
Kepler+	O
,	O
DirectX	B-Application
12	O
(	O
11_0+	O
)	O
with	O
WDDM	O
2.4	O
.	O
</s>
<s>
Shader	O
Model	O
6.3	O
—	O
GCN	O
1+	O
,	O
Kepler+	O
,	O
DirectX	B-Application
12	O
(	O
11_0+	O
)	O
with	O
WDDM	O
2.5	O
.	O
</s>
<s>
Shader	O
Model	O
6.4	O
—	O
GCN	O
1+	O
,	O
Kepler+	O
,	O
Skylake+	O
,	O
DirectX	B-Application
12	O
(	O
11_0+	O
)	O
with	O
WDDM	O
2.6	O
.	O
</s>
<s>
Shader	O
Model	O
6.5	O
—	O
GCN	O
1+	O
,	O
Kepler+	O
,	O
Skylake+	O
,	O
DirectX	B-Application
12	O
(	O
11_0+	O
)	O
with	O
WDDM	O
2.7	O
.	O
</s>
<s>
Shader	O
Model	O
6.6	O
—	O
GCN	O
4+	O
,	O
Maxwell+	O
,	O
DirectX	B-Application
12	O
(	O
11_0+	O
)	O
with	O
WDDM	O
3.0	O
.	O
</s>
<s>
Shader	O
Model	O
6.7	O
—	O
GCN	O
4+	O
,	O
Maxwell+	O
,	O
DirectX	B-Application
12	O
(	O
12_0+	O
)	O
with	O
WDDM	O
3.1	O
.	O
</s>
