mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-19 18:45:43 +00:00
81 lines
1.9 KiB
C++
81 lines
1.9 KiB
C++
//============================================================================
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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//
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//============================================================================
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#ifndef vtk_m_worklet_BoundingVolumeHierachy_h
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#define vtk_m_worklet_BoundingVolumeHierachy_h
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#include <vtkm/cont/ArrayHandle.h>
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#include <vtkm/cont/DataSet.h>
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#include <vtkm/rendering/vtkm_rendering_export.h>
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namespace vtkm
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{
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namespace rendering
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{
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namespace raytracing
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{
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struct AABBs
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{
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vtkm::cont::ArrayHandle<vtkm::Float32> xmins;
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vtkm::cont::ArrayHandle<vtkm::Float32> ymins;
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vtkm::cont::ArrayHandle<vtkm::Float32> zmins;
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vtkm::cont::ArrayHandle<vtkm::Float32> xmaxs;
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vtkm::cont::ArrayHandle<vtkm::Float32> ymaxs;
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vtkm::cont::ArrayHandle<vtkm::Float32> zmaxs;
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};
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//
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// This is the data structure that is passed to the ray tracer.
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//
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class VTKM_RENDERING_EXPORT LinearBVH
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{
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public:
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using InnerNodesHandle = vtkm::cont::ArrayHandle<vtkm::Vec4f_32>;
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using LeafNodesHandle = vtkm::cont::ArrayHandle<Id>;
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AABBs AABB;
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InnerNodesHandle FlatBVH;
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LeafNodesHandle Leafs;
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vtkm::Bounds TotalBounds;
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vtkm::Id LeafCount;
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protected:
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bool IsConstructed;
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bool CanConstruct;
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public:
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LinearBVH();
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VTKM_CONT
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LinearBVH(AABBs& aabbs);
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VTKM_CONT
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LinearBVH(const LinearBVH& other);
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VTKM_CONT void Allocate(const vtkm::Id& leafCount);
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VTKM_CONT
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void Construct();
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VTKM_CONT
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void SetData(AABBs& aabbs);
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VTKM_CONT
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AABBs& GetAABBs();
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VTKM_CONT
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bool GetIsConstructed() const;
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vtkm::Id GetNumberOfAABBs() const;
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}; // class LinearBVH
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}
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}
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} // namespace vtkm::rendering::raytracing
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#endif //vtk_m_worklet_BoundingVolumeHierachy_h
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