54 lines
1.3 KiB
Text
54 lines
1.3 KiB
Text
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// Copyright 2020 Google LLC
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struct UBO
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{
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float tessLevel;
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};
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cbuffer ubo : register(b0) { UBO ubo; }
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struct VSOutput
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{
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[[vk::location(2)]] float4 Pos : POSITION;
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[[vk::location(0)]] float3 Normal : NORMAL0;
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[[vk::location(1)]] float2 UV : TEXCOORD0;
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};
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struct HSOutput
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{
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[[vk::location(2)]] float4 Pos : POSITION;
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[[vk::location(0)]] float3 Normal : NORMAL0;
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[[vk::location(1)]] float2 UV : TEXCOORD0;
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};
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struct ConstantsHSOutput
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{
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float TessLevelOuter[3] : SV_TessFactor;
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float TessLevelInner : SV_InsideTessFactor;
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};
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ConstantsHSOutput ConstantsHS(InputPatch<VSOutput, 3> patch, uint InvocationID : SV_PrimitiveID)
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{
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ConstantsHSOutput output = (ConstantsHSOutput)0;
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output.TessLevelInner = ubo.tessLevel;
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output.TessLevelOuter[0] = ubo.tessLevel;
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output.TessLevelOuter[1] = ubo.tessLevel;
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output.TessLevelOuter[2] = ubo.tessLevel;
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return output;
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}
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[domain("tri")]
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[partitioning("integer")]
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[outputtopology("triangle_ccw")]
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[outputcontrolpoints(3)]
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[patchconstantfunc("ConstantsHS")]
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[maxtessfactor(20.0f)]
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HSOutput main(InputPatch<VSOutput, 3> patch, uint InvocationID : SV_OutputControlPointID)
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{
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HSOutput output = (HSOutput)0;
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output.Pos = patch[InvocationID].Pos;
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output.Normal = patch[InvocationID].Normal;
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output.UV = patch[InvocationID].UV;
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return output;
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}
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