1 ////////////////////////////////////////////////////////////////////////////////// 2 // OpenGL Mathematics Copyright (c) 2005 - 2014 G-Truc Creation (www.g-truc.net) 3 ////////////////////////////////////////////////////////////////////////////////// 4 // Created : 2007-09-28 5 // Updated : 2008-10-07 6 // Licence : This source is under MIT License 7 // File : glm/gtx/normalize_dot.inl 8 ////////////////////////////////////////////////////////////////////////////////// 9 10 namespace glm 11 { 12 template <typename genType> 13 GLM_FUNC_QUALIFIER genType normalizeDot 14 ( 15 genType const & x, 16 genType const & y 17 ) 18 { 19 return 20 glm::dot(x, y) * 21 glm::inversesqrt(glm::dot(x, x) * 22 glm::dot(y, y)); 23 } 24 25 template <typename T, precision P> 26 GLM_FUNC_QUALIFIER T normalizeDot 27 ( 28 detail::tvec2<T, P> const & x, 29 detail::tvec2<T, P> const & y 30 ) 31 { 32 return 33 glm::dot(x, y) * 34 glm::inversesqrt(glm::dot(x, x) * 35 glm::dot(y, y)); 36 } 37 38 template <typename T, precision P> 39 GLM_FUNC_QUALIFIER T normalizeDot 40 ( 41 detail::tvec3<T, P> const & x, 42 detail::tvec3<T, P> const & y 43 ) 44 { 45 return 46 glm::dot(x, y) * 47 glm::inversesqrt(glm::dot(x, x) * 48 glm::dot(y, y)); 49 } 50 51 template <typename T, precision P> 52 GLM_FUNC_QUALIFIER T normalizeDot 53 ( 54 detail::tvec4<T, P> const & x, 55 detail::tvec4<T, P> const & y 56 ) 57 { 58 return 59 glm::dot(x, y) * 60 glm::inversesqrt(glm::dot(x, x) * 61 glm::dot(y, y)); 62 } 63 64 template <typename genType> 65 GLM_FUNC_QUALIFIER genType fastNormalizeDot 66 ( 67 genType const & x, 68 genType const & y 69 ) 70 { 71 return 72 glm::dot(x, y) * 73 fastInverseSqrt(glm::dot(x, x) * 74 glm::dot(y, y)); 75 } 76 77 template <typename T, precision P> 78 GLM_FUNC_QUALIFIER T fastNormalizeDot 79 ( 80 detail::tvec2<T, P> const & x, 81 detail::tvec2<T, P> const & y 82 ) 83 { 84 return 85 glm::dot(x, y) * 86 fastInverseSqrt(glm::dot(x, x) * 87 glm::dot(y, y)); 88 } 89 90 template <typename T, precision P> 91 GLM_FUNC_QUALIFIER T fastNormalizeDot 92 ( 93 detail::tvec3<T, P> const & x, 94 detail::tvec3<T, P> const & y 95 ) 96 { 97 return 98 glm::dot(x, y) * 99 fastInverseSqrt(glm::dot(x, x) * 100 glm::dot(y, y)); 101 } 102 103 template <typename T, precision P> 104 GLM_FUNC_QUALIFIER T fastNormalizeDot 105 ( 106 detail::tvec4<T, P> const & x, 107 detail::tvec4<T, P> const & y 108 ) 109 { 110 return 111 glm::dot(x, y) * 112 fastInverseSqrt(glm::dot(x, x) * 113 glm::dot(y, y)); 114 } 115 }//namespace glm 116
