44 lines
1.2 KiB
HLSL
44 lines
1.2 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 Particle
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{
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float4 pos;
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float4 vel;
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};
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[[vk::binding(0, 0)]]
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RWStructuredBuffer<Particle> particles : register(u0);
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struct UBO
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{
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float deltaT;
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int particleCount;
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};
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[[vk::binding(1, 0)]]
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ConstantBuffer<UBO> ubo : register(b1);
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#define TIME_FACTOR 0.05
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[numthreads(256, 1, 1)]
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void main(uint3 GlobalInvocationID : SV_DispatchThreadID)
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{
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int index = int(GlobalInvocationID.x);
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float4 position = particles[index].pos;
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float4 velocity = particles[index].vel;
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position += ubo.deltaT * TIME_FACTOR * velocity;
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particles[index].pos = position;
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} |