raytracer_C.h

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#ifndef RAYTRACER_C_H
#define RAYTRACER_C_H
 
#include <vector>
#include <array>
 
namespace HF {
    namespace RayTracer {
        class EmbreeRayTracer;
    }
    namespace Geometry {
        template<typename T> class MeshInfo;
    }
}
 
#define C_INTERFACE extern "C" __declspec(dllexport) int
 
struct RayResult {
    float distance = -1;
    int meshid = -1;
 
    template <typename N, typename V>
    void SetHit(const N& node, const V& direction, float dist, int mid) {
        distance = dist;
        meshid = mid;
    }
};
 
C_INTERFACE CreateRaytracer(
    HF::Geometry::MeshInfo<float> * mesh, 
    HF::RayTracer::EmbreeRayTracer ** out_raytracer,
    bool use_precise
);
 
C_INTERFACE CreateRaytracerMultiMesh(
    HF::Geometry::MeshInfo<float> ** meshes,
    int num_meshes,
    HF::RayTracer::EmbreeRayTracer** out_raytracer,
    bool use_precise
);
 
 
C_INTERFACE AddMesh(
    HF::RayTracer::EmbreeRayTracer* ERT,
    HF::Geometry::MeshInfo<float>* MI
);
 
 
C_INTERFACE AddMeshes(
    HF::RayTracer::EmbreeRayTracer* ERT,
    HF::Geometry::MeshInfo<float> ** MI,
    int number_of_meshes
);
 
 
C_INTERFACE DestroyRayTracer(HF::RayTracer::EmbreeRayTracer* rt_to_destroy);
 
C_INTERFACE CastRaysDistance(
    HF::RayTracer::EmbreeRayTracer* ert,
    float* origins,
    int num_origins,
    float* directions,
    int num_directions,
    std::vector<RayResult>** out_results,
    RayResult** results_data
);
 
C_INTERFACE CastSingleRayDistance(
    HF::RayTracer::EmbreeRayTracer* ert,
    const float* origin,
    const float* direction,
    const float max_distance,
    float* out_distance,
    int* out_meshid
);
 
C_INTERFACE CastRay(HF::RayTracer::EmbreeRayTracer* ert, float& x, float& y, float& z, float dx, float dy, float dz, float max_distance, bool& result);
 
C_INTERFACE CastMultipleRays(HF::RayTracer::EmbreeRayTracer* ert, float* origins, const float* directions, int size, float max_distance, bool* result_array);
 
C_INTERFACE CastMultipleOriginsOneDirection(HF::RayTracer::EmbreeRayTracer* ert, float* origins, const float* direction, int size, float max_distance, bool* result_array);
 
C_INTERFACE CastMultipleDirectionsOneOrigin(HF::RayTracer::EmbreeRayTracer* ert, const float* origin, float* directions, int size, float max_distance, bool* result_array);
 
C_INTERFACE CastOcclusionRays(
    HF::RayTracer::EmbreeRayTracer* ert,
    const float* origins,
    const float* directions,
    int origin_size,
    int direction_size,
    float max_distance,
    bool* result_array
);
 
C_INTERFACE DestroyRayResultVector(
    std::vector<RayResult>* analysis
);
 
C_INTERFACE PreciseIntersection(HF::RayTracer::EmbreeRayTracer* RT, double x, double y, double z, double dx, double dy, double dz, double * out_distance);
 
#endif /* RAYTRACER_C_H */