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137 lines
4.7 KiB
C++
137 lines
4.7 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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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/_noise.hpp
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/// @date 2013-12-24 / 2013-12-24
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/// @author Christophe Riccio
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///////////////////////////////////////////////////////////////////////////////////
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#pragma once
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#include "../vec2.hpp"
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#include "../vec3.hpp"
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#include "../vec4.hpp"
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#include "../common.hpp"
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namespace glm{
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namespace detail
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{
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template <typename T>
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GLM_FUNC_QUALIFIER T mod289(T const & x)
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{
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return x - floor(x * static_cast<T>(1.0) / static_cast<T>(289.0)) * static_cast<T>(289.0);
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}
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template <typename T>
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GLM_FUNC_QUALIFIER T permute(T const & x)
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{
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return mod289(((x * static_cast<T>(34)) + static_cast<T>(1)) * x);
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}
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template <typename T, precision P>
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GLM_FUNC_QUALIFIER tvec2<T, P> permute(tvec2<T, P> const & x)
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{
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return mod289(((x * static_cast<T>(34)) + static_cast<T>(1)) * x);
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}
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template <typename T, precision P>
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GLM_FUNC_QUALIFIER tvec3<T, P> permute(tvec3<T, P> const & x)
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{
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return mod289(((x * static_cast<T>(34)) + static_cast<T>(1)) * x);
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}
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template <typename T, precision P>
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GLM_FUNC_QUALIFIER tvec4<T, P> permute(tvec4<T, P> const & x)
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{
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return mod289(((x * static_cast<T>(34)) + static_cast<T>(1)) * x);
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}
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/*
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template <typename T, precision P, template<typename> class vecType>
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GLM_FUNC_QUALIFIER vecType<T, P> permute(vecType<T, P> const & x)
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{
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return mod289(((x * T(34)) + T(1)) * x);
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}
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*/
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template <typename T>
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GLM_FUNC_QUALIFIER T taylorInvSqrt(T const & r)
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{
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return T(1.79284291400159) - T(0.85373472095314) * r;
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}
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template <typename T, precision P>
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GLM_FUNC_QUALIFIER tvec2<T, P> taylorInvSqrt(tvec2<T, P> const & r)
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{
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return T(1.79284291400159) - T(0.85373472095314) * r;
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}
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template <typename T, precision P>
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GLM_FUNC_QUALIFIER tvec3<T, P> taylorInvSqrt(tvec3<T, P> const & r)
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{
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return T(1.79284291400159) - T(0.85373472095314) * r;
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}
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template <typename T, precision P>
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GLM_FUNC_QUALIFIER tvec4<T, P> taylorInvSqrt(tvec4<T, P> const & r)
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{
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return T(1.79284291400159) - T(0.85373472095314) * r;
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}
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/*
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template <typename T, precision P, template<typename> class vecType>
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GLM_FUNC_QUALIFIER vecType<T, P> taylorInvSqrt(vecType<T, P> const & r)
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{
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return T(1.79284291400159) - T(0.85373472095314) * r;
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}
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*/
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template <typename T, precision P>
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GLM_FUNC_QUALIFIER tvec2<T, P> fade(tvec2<T, P> const & t)
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{
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return (t * t * t) * (t * (t * T(6) - T(15)) + T(10));
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}
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template <typename T, precision P>
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GLM_FUNC_QUALIFIER tvec3<T, P> fade(tvec3<T, P> const & t)
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{
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return (t * t * t) * (t * (t * T(6) - T(15)) + T(10));
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}
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template <typename T, precision P>
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GLM_FUNC_QUALIFIER tvec4<T, P> fade(tvec4<T, P> const & t)
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{
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return (t * t * t) * (t * (t * T(6) - T(15)) + T(10));
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}
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/*
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template <typename T, precision P, template <typename> class vecType>
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GLM_FUNC_QUALIFIER vecType<T, P> fade(vecType<T, P> const & t)
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{
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return (t * t * t) * (t * (t * T(6) - T(15)) + T(10));
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}
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*/
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}//namespace detail
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}//namespace glm
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