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Diffstat (limited to '3rdparty/include/glm/gtx/rotate_vector.inl')
| -rw-r--r-- | 3rdparty/include/glm/gtx/rotate_vector.inl | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/3rdparty/include/glm/gtx/rotate_vector.inl b/3rdparty/include/glm/gtx/rotate_vector.inl new file mode 100644 index 0000000..cdac574 --- /dev/null +++ b/3rdparty/include/glm/gtx/rotate_vector.inl @@ -0,0 +1,217 @@ +/////////////////////////////////////////////////////////////////////////////////// +/// OpenGL Mathematics (glm.g-truc.net) +/// +/// Copyright (c) 2005 - 2015 G-Truc Creation (www.g-truc.net) +/// Permission is hereby granted, free of charge, to any person obtaining a copy +/// of this software and associated documentation files (the "Software"), to deal +/// in the Software without restriction, including without limitation the rights +/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +/// copies of the Software, and to permit persons to whom the Software is +/// furnished to do so, subject to the following conditions: +/// +/// The above copyright notice and this permission notice shall be included in +/// all copies or substantial portions of the Software. +/// +/// Restrictions: +/// By making use of the Software for military purposes, you choose to make +/// a Bunny unhappy. +/// +/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +/// THE SOFTWARE. +/// +/// @ref gtx_rotate_vector +/// @file glm/gtx/rotate_vector.inl +/// @date 2006-11-02 / 2011-06-07 +/// @author Christophe Riccio +/////////////////////////////////////////////////////////////////////////////////// + +namespace glm +{ + template <typename T, precision P> + GLM_FUNC_QUALIFIER tvec3<T, P> slerp + ( + tvec3<T, P> const & x, + tvec3<T, P> const & y, + T const & a + ) + { + // get cosine of angle between vectors (-1 -> 1) + T CosAlpha = dot(x, y); + // get angle (0 -> pi) + T Alpha = acos(CosAlpha); + // get sine of angle between vectors (0 -> 1) + T SinAlpha = sin(Alpha); + // this breaks down when SinAlpha = 0, i.e. Alpha = 0 or pi + T t1 = sin((static_cast<T>(1) - a) * Alpha) / SinAlpha; + T t2 = sin(a * Alpha) / SinAlpha; + + // interpolate src vectors + return x * t1 + y * t2; + } + + template <typename T, precision P> + GLM_FUNC_QUALIFIER tvec2<T, P> rotate + ( + tvec2<T, P> const & v, + T const & angle + ) + { + tvec2<T, P> Result; + T const Cos(cos(angle)); + T const Sin(sin(angle)); + + Result.x = v.x * Cos - v.y * Sin; + Result.y = v.x * Sin + v.y * Cos; + return Result; + } + + template <typename T, precision P> + GLM_FUNC_QUALIFIER tvec3<T, P> rotate + ( + tvec3<T, P> const & v, + T const & angle, + tvec3<T, P> const & normal + ) + { + return tmat3x3<T, P>(glm::rotate(angle, normal)) * v; + } + /* + template <typename T, precision P> + GLM_FUNC_QUALIFIER tvec3<T, P> rotateGTX( + const tvec3<T, P>& x, + T angle, + const tvec3<T, P>& normal) + { + const T Cos = cos(radians(angle)); + const T Sin = sin(radians(angle)); + return x * Cos + ((x * normal) * (T(1) - Cos)) * normal + cross(x, normal) * Sin; + } + */ + template <typename T, precision P> + GLM_FUNC_QUALIFIER tvec4<T, P> rotate + ( + tvec4<T, P> const & v, + T const & angle, + tvec3<T, P> const & normal + ) + { + return rotate(angle, normal) * v; + } + + template <typename T, precision P> + GLM_FUNC_QUALIFIER tvec3<T, P> rotateX + ( + tvec3<T, P> const & v, + T const & angle + ) + { + tvec3<T, P> Result(v); + T const Cos(cos(angle)); + T const Sin(sin(angle)); + + Result.y = v.y * Cos - v.z * Sin; + Result.z = v.y * Sin + v.z * Cos; + return Result; + } + + template <typename T, precision P> + GLM_FUNC_QUALIFIER tvec3<T, P> rotateY + ( + tvec3<T, P> const & v, + T const & angle + ) + { + tvec3<T, P> Result = v; + T const Cos(cos(angle)); + T const Sin(sin(angle)); + + Result.x = v.x * Cos + v.z * Sin; + Result.z = -v.x * Sin + v.z * Cos; + return Result; + } + + template <typename T, precision P> + GLM_FUNC_QUALIFIER tvec3<T, P> rotateZ + ( + tvec3<T, P> const & v, + T const & angle + ) + { + tvec3<T, P> Result = v; + T const Cos(cos(angle)); + T const Sin(sin(angle)); + + Result.x = v.x * Cos - v.y * Sin; + Result.y = v.x * Sin + v.y * Cos; + return Result; + } + + template <typename T, precision P> + GLM_FUNC_QUALIFIER tvec4<T, P> rotateX + ( + tvec4<T, P> const & v, + T const & angle + ) + { + tvec4<T, P> Result = v; + T const Cos(cos(angle)); + T const Sin(sin(angle)); + + Result.y = v.y * Cos - v.z * Sin; + Result.z = v.y * Sin + v.z * Cos; + return Result; + } + + template <typename T, precision P> + GLM_FUNC_QUALIFIER tvec4<T, P> rotateY + ( + tvec4<T, P> const & v, + T const & angle + ) + { + tvec4<T, P> Result = v; + T const Cos(cos(angle)); + T const Sin(sin(angle)); + + Result.x = v.x * Cos + v.z * Sin; + Result.z = -v.x * Sin + v.z * Cos; + return Result; + } + + template <typename T, precision P> + GLM_FUNC_QUALIFIER tvec4<T, P> rotateZ + ( + tvec4<T, P> const & v, + T const & angle + ) + { + tvec4<T, P> Result = v; + T const Cos(cos(angle)); + T const Sin(sin(angle)); + + Result.x = v.x * Cos - v.y * Sin; + Result.y = v.x * Sin + v.y * Cos; + return Result; + } + + template <typename T, precision P> + GLM_FUNC_QUALIFIER tmat4x4<T, P> orientation + ( + tvec3<T, P> const & Normal, + tvec3<T, P> const & Up + ) + { + if(all(equal(Normal, Up))) + return tmat4x4<T, P>(T(1)); + + tvec3<T, P> RotationAxis = cross(Up, Normal); + T Angle = acos(dot(Normal, Up)); + + return rotate(Angle, RotationAxis); + } +}//namespace glm |