diff options
author | rtk0c <[email protected]> | 2022-05-22 01:08:24 -0700 |
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committer | rtk0c <[email protected]> | 2022-05-22 01:08:24 -0700 |
commit | c568f0a8c9f0aef00c770b494ee1ff3a89ab48de (patch) | |
tree | 1dc1e69d796e635cdac6a4ef7e6d3a90ab1423c2 /3rdparty/glm/source/glm/ext/quaternion_trigonometric.inl | |
parent | a5db6bd3cc4af5233010ff44d0572ddf98b43c9d (diff) |
Changeset: 35 Fix missing sources in git submodules after migration to PlasticSCM
Diffstat (limited to '3rdparty/glm/source/glm/ext/quaternion_trigonometric.inl')
-rw-r--r-- | 3rdparty/glm/source/glm/ext/quaternion_trigonometric.inl | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/3rdparty/glm/source/glm/ext/quaternion_trigonometric.inl b/3rdparty/glm/source/glm/ext/quaternion_trigonometric.inl new file mode 100644 index 0000000..896449a --- /dev/null +++ b/3rdparty/glm/source/glm/ext/quaternion_trigonometric.inl @@ -0,0 +1,37 @@ +#include "scalar_constants.hpp" + +namespace glm +{ + template<typename T, qualifier Q> + GLM_FUNC_QUALIFIER T angle(qua<T, Q> const& x) + { + if (abs(x.w) > cos_one_over_two<T>()) + { + T const a = asin(sqrt(x.x * x.x + x.y * x.y + x.z * x.z)) * static_cast<T>(2); + if(x.w < static_cast<T>(0)) + return pi<T>() * static_cast<T>(2) - a; + return a; + } + + return acos(x.w) * static_cast<T>(2); + } + + template<typename T, qualifier Q> + GLM_FUNC_QUALIFIER vec<3, T, Q> axis(qua<T, Q> const& x) + { + T const tmp1 = static_cast<T>(1) - x.w * x.w; + if(tmp1 <= static_cast<T>(0)) + return vec<3, T, Q>(0, 0, 1); + T const tmp2 = static_cast<T>(1) / sqrt(tmp1); + return vec<3, T, Q>(x.x * tmp2, x.y * tmp2, x.z * tmp2); + } + + template<typename T, qualifier Q> + GLM_FUNC_QUALIFIER qua<T, Q> angleAxis(T const& angle, vec<3, T, Q> const& v) + { + T const a(angle); + T const s = glm::sin(a * static_cast<T>(0.5)); + + return qua<T, Q>(glm::cos(a * static_cast<T>(0.5)), v * s); + } +}//namespace glm |