Dengine/extern/glm-0.9.7.5/include/glm/gtx/handed_coordinate_space.inl
2016-06-03 15:07:40 +10:00

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C++

///////////////////////////////////////////////////////////////////////////////////
/// 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_handed_coordinate_space
/// @file glm/gtx/handed_coordinate_space.inl
/// @date 2005-12-21 / 2009-02-19
/// @author Christophe Riccio
///////////////////////////////////////////////////////////////////////////////////////////////////
namespace glm
{
template <typename T, precision P>
GLM_FUNC_QUALIFIER bool rightHanded
(
tvec3<T, P> const & tangent,
tvec3<T, P> const & binormal,
tvec3<T, P> const & normal
)
{
return dot(cross(normal, tangent), binormal) > T(0);
}
template <typename T, precision P>
GLM_FUNC_QUALIFIER bool leftHanded
(
tvec3<T, P> const & tangent,
tvec3<T, P> const & binormal,
tvec3<T, P> const & normal
)
{
return dot(cross(normal, tangent), binormal) < T(0);
}
}//namespace glm