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131 lines
4.2 KiB
131 lines
4.2 KiB
/////////////////////////////////////////////////////////////////////////////////// |
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/// OpenGL Mathematics (glm.g-truc.net) |
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/// |
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/// Copyright (c) 2005 - 2014 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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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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