picking.h

#ifndef _PICKING_H
#define _PICKING_H
 
#include <maths/vector2.h>
#include <maths/plane.h>
 
#include "picking.h"
 
namespace GefExtensions
{
    class RayHelper final
    {
    public:
        static void GetScreenPosRay(gef::Vector2 const & screen_position, gef::Matrix44 const & projection, gef::Matrix44 const & view, gef::Vector4 & start_point, gef::Vector4 & direction, float screen_width, float screen_height, float ndc_z_min);
        static bool RaySphereIntersect(gef::Vector4 const & start_point, gef::Vector4 const & direction, gef::Vector4 const & sphere_centre, float sphere_radius, gef::Vector4 & hitpoint);
        static bool RayPlaneIntersect(gef::Vector4 & start_point, gef::Vector4 & direction, gef::Vector4 const & point_on_plane, gef::Vector4 const & plane_normal, gef::Vector4 & hitpoint);
    };
}
#endif // _PICKING_H