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https://github.com/JoeyDeVries/LearnOpenGL.git
synced 2026-01-07 01:03:22 +08:00
Update GLM to latest version (0.9.9.3). This includes GLM's change of matrices no longer default initializing to the identity matrix. This commit thus also includes the update of all of LearnOpenGL's code to reflect this: all matrices are now constructor-initialized to the identity matrix where relevant.
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@@ -1,36 +1,7 @@
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///////////////////////////////////////////////////////////////////////////////////
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/// OpenGL Mathematics (glm.g-truc.net)
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///
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/// Copyright (c) 2005 - 2015 G-Truc Creation (www.g-truc.net)
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/// Permission is hereby granted, free of charge, to any person obtaining a copy
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/// of this software and associated documentation files (the "Software"), to deal
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/// in the Software without restriction, including without limitation the rights
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/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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/// copies of the Software, and to permit persons to whom the Software is
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/// furnished to do so, subject to the following conditions:
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///
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/// The above copyright notice and this permission notice shall be included in
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/// all copies or substantial portions of the Software.
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///
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/// Restrictions:
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/// By making use of the Software for military purposes, you choose to make
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/// a Bunny unhappy.
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///
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/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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/// THE SOFTWARE.
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///
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/// @ref core
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/// @file glm/detail/func_exponential.inl
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/// @date 2008-08-03 / 2011-06-15
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/// @author Christophe Riccio
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///////////////////////////////////////////////////////////////////////////////////
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#include "func_vector_relational.hpp"
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#include "../vector_relational.hpp"
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#include "_vectorize.hpp"
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#include <limits>
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#include <cmath>
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@@ -42,41 +13,52 @@ namespace detail
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# if GLM_HAS_CXX11_STL
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using std::log2;
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# else
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template <typename genType>
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template<typename genType>
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genType log2(genType Value)
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{
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return std::log(Value) * static_cast<genType>(1.4426950408889634073599246810019);
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}
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# endif
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template <typename T, precision P, template <class, precision> class vecType, bool isFloat = true>
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template<length_t L, typename T, qualifier Q, bool isFloat, bool Aligned>
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struct compute_log2
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{
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GLM_FUNC_QUALIFIER static vecType<T, P> call(vecType<T, P> const & vec)
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GLM_FUNC_QUALIFIER static vec<L, T, Q> call(vec<L, T, Q> const& v)
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{
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return detail::functor1<T, T, P, vecType>::call(log2, vec);
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GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'log2' only accept floating-point inputs. Include <glm/gtc/integer.hpp> for integer inputs.");
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return detail::functor1<vec, L, T, T, Q>::call(log2, v);
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}
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};
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template <template <class, precision> class vecType, typename T, precision P>
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template<length_t L, typename T, qualifier Q, bool Aligned>
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struct compute_sqrt
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{
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GLM_FUNC_QUALIFIER static vec<L, T, Q> call(vec<L, T, Q> const& x)
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{
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return detail::functor1<vec, L, T, T, Q>::call(std::sqrt, x);
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}
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};
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template<length_t L, typename T, qualifier Q, bool Aligned>
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struct compute_inversesqrt
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{
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GLM_FUNC_QUALIFIER static vecType<T, P> call(vecType<T, P> const & x)
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GLM_FUNC_QUALIFIER static vec<L, T, Q> call(vec<L, T, Q> const& x)
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{
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return static_cast<T>(1) / sqrt(x);
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}
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};
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template <template <class, precision> class vecType>
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struct compute_inversesqrt<vecType, float, lowp>
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template<length_t L, bool Aligned>
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struct compute_inversesqrt<L, float, lowp, Aligned>
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{
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GLM_FUNC_QUALIFIER static vecType<float, lowp> call(vecType<float, lowp> const & x)
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GLM_FUNC_QUALIFIER static vec<L, float, lowp> call(vec<L, float, lowp> const& x)
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{
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vecType<float, lowp> tmp(x);
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vecType<float, lowp> xhalf(tmp * 0.5f);
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vecType<uint, lowp>* p = reinterpret_cast<vecType<uint, lowp>*>(const_cast<vecType<float, lowp>*>(&x));
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vecType<uint, lowp> i = vecType<uint, lowp>(0x5f375a86) - (*p >> vecType<uint, lowp>(1));
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vecType<float, lowp>* ptmp = reinterpret_cast<vecType<float, lowp>*>(&i);
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vec<L, float, lowp> tmp(x);
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vec<L, float, lowp> xhalf(tmp * 0.5f);
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vec<L, uint, lowp>* p = reinterpret_cast<vec<L, uint, lowp>*>(const_cast<vec<L, float, lowp>*>(&x));
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vec<L, uint, lowp> i = vec<L, uint, lowp>(0x5f375a86) - (*p >> vec<L, uint, lowp>(1));
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vec<L, float, lowp>* ptmp = reinterpret_cast<vec<L, float, lowp>*>(&i);
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tmp = *ptmp;
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tmp = tmp * (1.5f - xhalf * tmp * tmp);
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return tmp;
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@@ -86,76 +68,85 @@ namespace detail
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// pow
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using std::pow;
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template <typename T, precision P, template <typename, precision> class vecType>
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GLM_FUNC_QUALIFIER vecType<T, P> pow(vecType<T, P> const & base, vecType<T, P> const & exponent)
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template<length_t L, typename T, qualifier Q>
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GLM_FUNC_QUALIFIER vec<L, T, Q> pow(vec<L, T, Q> const& base, vec<L, T, Q> const& exponent)
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{
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return detail::functor2<T, P, vecType>::call(pow, base, exponent);
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return detail::functor2<vec, L, T, Q>::call(pow, base, exponent);
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}
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// exp
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using std::exp;
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template <typename T, precision P, template <typename, precision> class vecType>
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GLM_FUNC_QUALIFIER vecType<T, P> exp(vecType<T, P> const & x)
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template<length_t L, typename T, qualifier Q>
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GLM_FUNC_QUALIFIER vec<L, T, Q> exp(vec<L, T, Q> const& x)
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{
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return detail::functor1<T, T, P, vecType>::call(exp, x);
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return detail::functor1<vec, L, T, T, Q>::call(exp, x);
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}
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// log
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using std::log;
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template <typename T, precision P, template <typename, precision> class vecType>
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GLM_FUNC_QUALIFIER vecType<T, P> log(vecType<T, P> const & x)
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template<length_t L, typename T, qualifier Q>
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GLM_FUNC_QUALIFIER vec<L, T, Q> log(vec<L, T, Q> const& x)
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{
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return detail::functor1<T, T, P, vecType>::call(log, x);
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return detail::functor1<vec, L, T, T, Q>::call(log, x);
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}
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# if GLM_HAS_CXX11_STL
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using std::exp2;
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# else
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//exp2, ln2 = 0.69314718055994530941723212145818f
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template <typename genType>
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template<typename genType>
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GLM_FUNC_QUALIFIER genType exp2(genType x)
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{
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GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_iec559, "'exp2' only accept floating-point inputs");
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return std::exp(static_cast<genType>(0.69314718055994530941723212145818) * x);
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}
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# endif
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template <typename T, precision P, template <typename, precision> class vecType>
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GLM_FUNC_QUALIFIER vecType<T, P> exp2(vecType<T, P> const & x)
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template<length_t L, typename T, qualifier Q>
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GLM_FUNC_QUALIFIER vec<L, T, Q> exp2(vec<L, T, Q> const& x)
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{
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return detail::functor1<T, T, P, vecType>::call(exp2, x);
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return detail::functor1<vec, L, T, T, Q>::call(exp2, x);
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}
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// log2, ln2 = 0.69314718055994530941723212145818f
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template <typename genType>
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template<typename genType>
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GLM_FUNC_QUALIFIER genType log2(genType x)
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{
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return log2(tvec1<genType>(x)).x;
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return log2(vec<1, genType>(x)).x;
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}
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template <typename T, precision P, template <typename, precision> class vecType>
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GLM_FUNC_QUALIFIER vecType<T, P> log2(vecType<T, P> const & x)
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template<length_t L, typename T, qualifier Q>
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GLM_FUNC_QUALIFIER vec<L, T, Q> log2(vec<L, T, Q> const& x)
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{
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return detail::compute_log2<T, P, vecType, std::numeric_limits<T>::is_iec559>::call(x);
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return detail::compute_log2<L, T, Q, std::numeric_limits<T>::is_iec559, detail::is_aligned<Q>::value>::call(x);
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}
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// sqrt
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using std::sqrt;
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template <typename T, precision P, template <typename, precision> class vecType>
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GLM_FUNC_QUALIFIER vecType<T, P> sqrt(vecType<T, P> const & x)
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template<length_t L, typename T, qualifier Q>
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GLM_FUNC_QUALIFIER vec<L, T, Q> sqrt(vec<L, T, Q> const& x)
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{
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GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'sqrt' only accept floating-point inputs");
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return detail::functor1<T, T, P, vecType>::call(sqrt, x);
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return detail::compute_sqrt<L, T, Q, detail::is_aligned<Q>::value>::call(x);
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}
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// inversesqrt
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template <typename genType>
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template<typename genType>
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GLM_FUNC_QUALIFIER genType inversesqrt(genType x)
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{
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return static_cast<genType>(1) / sqrt(x);
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}
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template <typename T, precision P, template <typename, precision> class vecType>
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GLM_FUNC_QUALIFIER vecType<T, P> inversesqrt(vecType<T, P> const & x)
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template<length_t L, typename T, qualifier Q>
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GLM_FUNC_QUALIFIER vec<L, T, Q> inversesqrt(vec<L, T, Q> const& x)
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{
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GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'inversesqrt' only accept floating-point inputs");
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return detail::compute_inversesqrt<vecType, T, P>::call(x);
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return detail::compute_inversesqrt<L, T, Q, detail::is_aligned<Q>::value>::call(x);
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}
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}//namespace glm
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#if GLM_CONFIG_SIMD == GLM_ENABLE
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# include "func_exponential_simd.inl"
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#endif
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