60 lines
1.7 KiB
HLSL
60 lines
1.7 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 VSInput
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{
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[[vk::location(0)]] float3 Position : POSITION0;
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[[vk::location(1)]] float3 Normal : NORMAL0;
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};
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[[vk::binding(0, 0)]]
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RaytracingAccelerationStructure topLevelAS : register(t0);
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struct GlobalUniform
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{
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float4x4 view;
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float4x4 proj;
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float4 camera_position;
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float4 light_position;
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};
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[[vk::binding(1, 0)]]
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ConstantBuffer<GlobalUniform> global_uniform : register(b1);
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struct VSOutput
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{
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float4 Pos : SV_POSITION;
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[[vk::location(0)]] float4 O_Pos : TEXCOORD0;
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[[vk::location(1)]] float3 O_Normal : NORMAL0;
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[[vk::location(2)]] float4 Scene_pos : TEXCOORD1; // scene with respect to BVH coordinates
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};
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VSOutput main(VSInput input)
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{
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VSOutput output = (VSOutput) 0;
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// We want to be able to perform ray tracing, so don't apply any matrix to scene_pos
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output.Scene_pos = float4(input.Position, 1.0);
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output.O_Pos = mul(global_uniform.view, float4(input.Position, 1.0));
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output.O_Normal = input.Normal;
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output.Pos = mul(global_uniform.proj, mul(global_uniform.view, float4(input.Position, 1.0)));
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return output;
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}
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