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-rw-r--r--depedencies/include/glm/gtx/vector_angle.inl58
1 files changed, 58 insertions, 0 deletions
diff --git a/depedencies/include/glm/gtx/vector_angle.inl b/depedencies/include/glm/gtx/vector_angle.inl
new file mode 100644
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--- /dev/null
+++ b/depedencies/include/glm/gtx/vector_angle.inl
@@ -0,0 +1,58 @@
+/// @ref gtx_vector_angle
+/// @file glm/gtx/vector_angle.inl
+
+namespace glm
+{
+ template <typename genType>
+ GLM_FUNC_QUALIFIER genType angle
+ (
+ genType const & x,
+ genType const & y
+ )
+ {
+ GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_iec559, "'angle' only accept floating-point inputs");
+ return acos(clamp(dot(x, y), genType(-1), genType(1)));
+ }
+
+ template <typename T, precision P, template <typename, precision> class vecType>
+ GLM_FUNC_QUALIFIER T angle
+ (
+ vecType<T, P> const & x,
+ vecType<T, P> const & y
+ )
+ {
+ GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'angle' only accept floating-point inputs");
+ return acos(clamp(dot(x, y), T(-1), T(1)));
+ }
+
+ //! \todo epsilon is hard coded to 0.01
+ template <typename T, precision P>
+ GLM_FUNC_QUALIFIER T orientedAngle
+ (
+ tvec2<T, P> const & x,
+ tvec2<T, P> const & y
+ )
+ {
+ GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'orientedAngle' only accept floating-point inputs");
+ T const Angle(acos(clamp(dot(x, y), T(-1), T(1))));
+
+ if(all(epsilonEqual(y, glm::rotate(x, Angle), T(0.0001))))
+ return Angle;
+ else
+ return -Angle;
+ }
+
+ template <typename T, precision P>
+ GLM_FUNC_QUALIFIER T orientedAngle
+ (
+ tvec3<T, P> const & x,
+ tvec3<T, P> const & y,
+ tvec3<T, P> const & ref
+ )
+ {
+ GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'orientedAngle' only accept floating-point inputs");
+
+ T const Angle(acos(clamp(dot(x, y), T(-1), T(1))));
+ return mix(Angle, -Angle, dot(ref, cross(x, y)) < T(0));
+ }
+}//namespace glm