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- // ***
- // per-control-point invocation of PCF from entry point return value
- // ***
- struct hs_in_t
- {
- float3 val : TEXCOORD0;
- };
- struct hs_pcf_t
- {
- float tfactor[3] : SV_TessFactor; // must turn into a size 4 array in SPIR-V
- float flInFactor : SV_InsideTessFactor; // must turn into a size 2 array in SPIR-V
- };
- struct hs_out_t
- {
- float3 val : TEXCOORD0;
- };
- [ domain ("tri") ]
- [ partitioning ("fractional_odd") ]
- [ outputtopology ("triangle_cw") ]
- [ outputcontrolpoints (3) ]
- [ patchconstantfunc ( "PCF" ) ]
- hs_out_t main (InputPatch <hs_in_t, 3> i , uint cpid : SV_OutputControlPointID)
- {
- hs_out_t o;
- o.val = cpid;
- return o;
- }
- hs_pcf_t PCF( const OutputPatch <hs_out_t, 3> pcf_out)
- {
- hs_pcf_t o;
- o.tfactor[0] = pcf_out[0].val.x;
- o.tfactor[1] = pcf_out[1].val.x;
- o.tfactor[2] = pcf_out[2].val.x;
- o.flInFactor = 4;
- return o;
- }
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