1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
struct HullInputType
{
float4 position : SV_Position;
};
struct ConstantOutputType
{
float edges[3] : SV_TessFactor;
float inside : SV_InsideTessFactor;
};
struct EmptyStruct {};
struct HullOutputType {};
void blob(InputPatch<HullInputType, 3> patch)
{
}
ConstantOutputType ColorPatchConstantFunction(InputPatch<HullInputType, 3> inputPatch, uint patchId : SV_PrimitiveID)
{
ConstantOutputType output;
// Set the tessellation factors for the three edges of the triangle.
output.edges[0] = 2;
output.edges[1] = 2;
output.edges[2] = 2;
// Set the tessellation factor for tessallating inside the triangle.
output.inside = 2;
return output;
}
// Hull Shader
[domain("tri")]
[partitioning("integer")]
[outputtopology("triangle_cw")]
[outputcontrolpoints(3)]
[patchconstantfunc("ColorPatchConstantFunction")]
HullOutputType main(EmptyStruct stage_input, InputPatch<HullInputType, 3> patch, uint pointId : SV_OutputControlPointID, uint patchId : SV_PrimitiveID)
{
HullOutputType output;
blob(patch);
return output;
}
|
