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/// @ref core
/// @file glm/detail/_noise.hpp
#pragma once
#include "../vec2.hpp"
#include "../vec3.hpp"
#include "../vec4.hpp"
#include "../common.hpp"
namespace glm{
namespace detail
{
template<typename T>
GLM_FUNC_QUALIFIER T mod289(T const& x)
{
return x - floor(x * (static_cast<T>(1.0) / static_cast<T>(289.0))) * static_cast<T>(289.0);
}
template<typename T>
GLM_FUNC_QUALIFIER T permute(T const& x)
{
return mod289(((x * static_cast<T>(34)) + static_cast<T>(1)) * x);
}
template<typename T, qualifier Q>
GLM_FUNC_QUALIFIER vec<2, T, Q> permute(vec<2, T, Q> const& x)
{
return mod289(((x * static_cast<T>(34)) + static_cast<T>(1)) * x);
}
template<typename T, qualifier Q>
GLM_FUNC_QUALIFIER vec<3, T, Q> permute(vec<3, T, Q> const& x)
{
return mod289(((x * static_cast<T>(34)) + static_cast<T>(1)) * x);
}
template<typename T, qualifier Q>
GLM_FUNC_QUALIFIER vec<4, T, Q> permute(vec<4, T, Q> const& x)
{
return mod289(((x * static_cast<T>(34)) + static_cast<T>(1)) * x);
}
template<typename T>
GLM_FUNC_QUALIFIER T taylorInvSqrt(T const& r)
{
return T(1.79284291400159) - T(0.85373472095314) * r;
}
template<typename T, qualifier Q>
GLM_FUNC_QUALIFIER vec<2, T, Q> taylorInvSqrt(vec<2, T, Q> const& r)
{
return T(1.79284291400159) - T(0.85373472095314) * r;
}
template<typename T, qualifier Q>
GLM_FUNC_QUALIFIER vec<3, T, Q> taylorInvSqrt(vec<3, T, Q> const& r)
{
return T(1.79284291400159) - T(0.85373472095314) * r;
}
template<typename T, qualifier Q>
GLM_FUNC_QUALIFIER vec<4, T, Q> taylorInvSqrt(vec<4, T, Q> const& r)
{
return T(1.79284291400159) - T(0.85373472095314) * r;
}
template<typename T, qualifier Q>
GLM_FUNC_QUALIFIER vec<2, T, Q> fade(vec<2, T, Q> const& t)
{
return (t * t * t) * (t * (t * T(6) - T(15)) + T(10));
}
template<typename T, qualifier Q>
GLM_FUNC_QUALIFIER vec<3, T, Q> fade(vec<3, T, Q> const& t)
{
return (t * t * t) * (t * (t * T(6) - T(15)) + T(10));
}
template<typename T, qualifier Q>
GLM_FUNC_QUALIFIER vec<4, T, Q> fade(vec<4, T, Q> const& t)
{
return (t * t * t) * (t * (t * T(6) - T(15)) + T(10));
}
}//namespace detail
}//namespace glm
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