diff options
| author | Joursoir <chat@joursoir.net> | 2021-04-10 17:29:02 +0000 |
|---|---|---|
| committer | Joursoir <chat@joursoir.net> | 2021-04-10 17:29:02 +0000 |
| commit | a8b3118e8305fd1c668ea25e07157b625c9747ff (patch) | |
| tree | 69aeec3c40e123443675da381774ef656a2c86e0 /src/include/glm/ext/quaternion_trigonometric.inl | |
| parent | 887314d01046ed2c00db3eb7b4b227f070501aa1 (diff) | |
| download | space-simulator-a8b3118e8305fd1c668ea25e07157b625c9747ff.tar.gz space-simulator-a8b3118e8305fd1c668ea25e07157b625c9747ff.tar.bz2 space-simulator-a8b3118e8305fd1c668ea25e07157b625c9747ff.zip | |
add glm headers
Diffstat (limited to 'src/include/glm/ext/quaternion_trigonometric.inl')
| -rw-r--r-- | src/include/glm/ext/quaternion_trigonometric.inl | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/src/include/glm/ext/quaternion_trigonometric.inl b/src/include/glm/ext/quaternion_trigonometric.inl new file mode 100644 index 0000000..d229d8d --- /dev/null +++ b/src/include/glm/ext/quaternion_trigonometric.inl @@ -0,0 +1,34 @@ +#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>())
+ {
+ return asin(sqrt(x.x * x.x + x.y * x.y + x.z * x.z)) * static_cast<T>(2);
+ }
+
+ 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
|