62 lines
1.6 KiB
HLSL
62 lines
1.6 KiB
HLSL
/* Copyright (c) 2024, Sascha Willems
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 the "License";
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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struct UBO
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{
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float4x4 projection;
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float4x4 view;
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};
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[[vk::binding(0, 0)]]
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ConstantBuffer<UBO> ubo : register(b0);
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struct HSOutput
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{
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float4 Pos : SV_POSITION;
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[[vk::location(0)]] float3 Color : COLOR0;
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};
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struct ConstantsHSOutput
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{
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float TessLevelOuter[4] : SV_TessFactor;
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float TessLevelInner[2] : SV_InsideTessFactor;
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};
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struct DSOutput
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{
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float4 Pos : SV_POSITION;
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[[vk::location(0)]] float3 Color : COLOR0;
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};
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/// layout(triangles, equal_spacing, cw) in;
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float4 interpolate3D(float4 v0, float4 v1, float4 v2, float3 TessCoord)
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{
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return TessCoord.x * v0 + TessCoord.y * v1 + TessCoord.z * v2;
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}
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[domain("tri")]
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DSOutput main(ConstantsHSOutput input, float3 TessCoord : SV_DomainLocation, const OutputPatch<HSOutput, 3> patch)
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{
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DSOutput output = (DSOutput)0;
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float4 pos = interpolate3D(patch[0].Pos, patch[1].Pos, patch[2].Pos, TessCoord);
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output.Pos = mul(ubo.projection, mul(ubo.view, pos));
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output.Color = patch[0].Color;
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return output;
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} |