108 lines
2.8 KiB
C++
108 lines
2.8 KiB
C++
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/// @ref core
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/// @file glm/detail/_noise.hpp
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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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