CUDASPHSystemData3.hpp

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// This code is based on Jet framework.
// Copyright (c) 2018 Doyub Kim
// CubbyFlow is voxel-based fluid simulation engine for computer games.
// Copyright (c) 2020 CubbyFlow Team
// Core Part: Chris Ohk, Junwoo Hwang, Jihong Sin, Seungwoo Yoo
// AI Part: Dongheon Cho, Minseo Kim
// We are making my contributions/submissions to this project solely in our
// personal capacity and are not conveying any rights to any intellectual
// property of any third parties.
 
#ifndef CUBBYFLOW_CUDA_SPH_SYSTEM_DATA3_HPP
#define CUBBYFLOW_CUDA_SPH_SYSTEM_DATA3_HPP
 
#ifdef CUBBYFLOW_USE_CUDA
 
#include <Core/CUDA/CUDAParticleSystemData3.hpp>
#include <Core/Utils/Constants.hpp>
 
namespace CubbyFlow
{
class CUDASPHSystemData3 : public CUDAParticleSystemData3
{
 public:
    CUDASPHSystemData3();
 
    explicit CUDASPHSystemData3(size_t numberOfParticles);
 
    ~CUDASPHSystemData3() override = default;
 
    CUDASPHSystemData3(const CUDASPHSystemData3& other);
 
    CUDASPHSystemData3(CUDASPHSystemData3&& other) noexcept;
 
    CUDASPHSystemData3& operator=(const CUDASPHSystemData3& other);
 
    CUDASPHSystemData3& operator=(CUDASPHSystemData3&& other) noexcept;
 
    ConstCUDAArrayView1<float> Densities() const;
 
    CUDAArrayView1<float> Densities();
 
    ConstCUDAArrayView1<float> Pressures() const;
 
    CUDAArrayView1<float> Pressures();
 
    void UpdateDensities();
 
    float TargetDensity() const;
 
    void SetTargetDensity(float targetDensity);
 
    float TargetSpacing() const;
 
    void SetTargetSpacing(float spacing);
 
    float RelativeKernelRadius() const;
 
    void SetRelativeKernelRadius(float relativeRadius);
 
    float KernelRadius() const;
 
    void SetKernelRadius(float kernelRadius);
 
    float Mass() const;
 
    void BuildNeighborSearcher();
 
    void BuildNeighborListsAndUpdateDensities();
 
    void Set(const CUDASPHSystemData3& other);
 
 private:
    float m_targetDensity = WATER_DENSITY_FLOAT;
 
    float m_targetSpacing = 0.1f;
 
    float m_kernelRadiusOverTargetSpacing = 1.8f;
 
    float m_kernelRadius = 0.1f;
 
    float m_mass = 1e-3f;
 
    size_t m_pressureIdx = 0;
 
    size_t m_densityIdx = 0;
 
    void ComputeMass();
};
 
using CUDASPHSystemData3Ptr = std::shared_ptr<CUDASPHSystemData3>;
 
}  // namespace CubbyFlow
 
#endif
 
#endif