1 /// @ref gtx_intersect 2 /// @file glm/gtx/intersect.hpp 3 /// 4 /// @see core (dependence) 5 /// @see gtx_closest_point (dependence) 6 /// 7 /// @defgroup gtx_intersect GLM_GTX_intersect 8 /// @ingroup gtx 9 /// 10 /// @brief Add intersection functions 11 /// 12 /// <glm/gtx/intersect.hpp> need to be included to use these functionalities. 13 14 #pragma once 15 16 // Dependency: 17 #include <cfloat> 18 #include <limits> 19 #include "../glm.hpp" 20 #include "../geometric.hpp" 21 #include "../gtx/closest_point.hpp" 22 #include "../gtx/vector_query.hpp" 23 24 #if GLM_MESSAGES == GLM_MESSAGES_ENABLED && !defined(GLM_EXT_INCLUDED) 25 # pragma message("GLM: GLM_GTX_closest_point extension included") 26 #endif 27 28 namespace glm 29 { 30 /// @addtogroup gtx_intersect 31 /// @{ 32 33 //! Compute the intersection of a ray and a plane. 34 //! Ray direction and plane normal must be unit length. 35 //! From GLM_GTX_intersect extension. 36 template <typename genType> 37 GLM_FUNC_DECL bool intersectRayPlane( 38 genType const & orig, genType const & dir, 39 genType const & planeOrig, genType const & planeNormal, 40 typename genType::value_type & intersectionDistance); 41 42 //! Compute the intersection of a ray and a triangle. 43 //! From GLM_GTX_intersect extension. 44 template <typename genType> 45 GLM_FUNC_DECL bool intersectRayTriangle( 46 genType const & orig, genType const & dir, 47 genType const & vert0, genType const & vert1, genType const & vert2, 48 genType & baryPosition); 49 50 //! Compute the intersection of a line and a triangle. 51 //! From GLM_GTX_intersect extension. 52 template <typename genType> 53 GLM_FUNC_DECL bool intersectLineTriangle( 54 genType const & orig, genType const & dir, 55 genType const & vert0, genType const & vert1, genType const & vert2, 56 genType & position); 57 58 //! Compute the intersection distance of a ray and a sphere. 59 //! The ray direction vector is unit length. 60 //! From GLM_GTX_intersect extension. 61 template <typename genType> 62 GLM_FUNC_DECL bool intersectRaySphere( 63 genType const & rayStarting, genType const & rayNormalizedDirection, 64 genType const & sphereCenter, typename genType::value_type const sphereRadiusSquered, 65 typename genType::value_type & intersectionDistance); 66 67 //! Compute the intersection of a ray and a sphere. 68 //! From GLM_GTX_intersect extension. 69 template <typename genType> 70 GLM_FUNC_DECL bool intersectRaySphere( 71 genType const & rayStarting, genType const & rayNormalizedDirection, 72 genType const & sphereCenter, const typename genType::value_type sphereRadius, 73 genType & intersectionPosition, genType & intersectionNormal); 74 75 //! Compute the intersection of a line and a sphere. 76 //! From GLM_GTX_intersect extension 77 template <typename genType> 78 GLM_FUNC_DECL bool intersectLineSphere( 79 genType const & point0, genType const & point1, 80 genType const & sphereCenter, typename genType::value_type sphereRadius, 81 genType & intersectionPosition1, genType & intersectionNormal1, 82 genType & intersectionPosition2 = genType(), genType & intersectionNormal2 = genType()); 83 84 /// @} 85 }//namespace glm 86 87 #include "intersect.inl" 88