TIndexedKdtreeIntersector.h

Go to the documentation of this file.

#pragma once
 
#include "Core/Intersection/Intersector.h"
#include "Math/Algorithm/IndexedKdtree/TIndexedKdtree.h"
 
#include <Common/assertion.h>
#include <Common/primitive_type.h>
 
#include <vector>
 
namespace ph
{
 
template<typename Index = uint32>
class TIndexedKdtreeIntersector : public Intersector
{
public:
    explicit TIndexedKdtreeIntersector(math::IndexedKdtreeParams params = math::IndexedKdtreeParams());
 
    void update(TSpanView<const Intersectable*> intersectables) override;
    bool isIntersecting(const Ray& ray, HitProbe& probe) const override;
    math::AABB3D calcAABB() const override;
 
private:
    struct IndexedIntersectables
    {
        std::vector<const Intersectable*> vec;
 
        const Intersectable* operator () (const std::size_t index) const
        {
            PH_ASSERT_LT(index, vec.size());
 
            return vec[index];
        }
    };
 
    struct IntersectableAABBCalculator
    {
        math::AABB3D operator () (const Intersectable* const intersectable) const
        {
            PH_ASSERT(intersectable);
 
            return intersectable->calcAABB();
        }
    };
 
    using Tree = math::TIndexedKdtree<
        IndexedIntersectables, 
        IntersectableAABBCalculator, 
        Index>;
 
    Tree                      m_tree;
    math::IndexedKdtreeParams m_params;
};
 
}// end namespace ph
 
#include "Core/Intersection/Intersector/TIndexedKdtreeIntersector.ipp"