/usr/include/glm/gtx/functions.inl is in libglm-dev 0.9.9~a2-2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | /// @ref gtx_functions
/// @file glm/gtx/functions.inl
#include "../exponential.hpp"
namespace glm
{
template<typename T>
GLM_FUNC_QUALIFIER T gauss
(
T x,
T ExpectedValue,
T StandardDeviation
)
{
return exp(-((x - ExpectedValue) * (x - ExpectedValue)) / (static_cast<T>(2) * StandardDeviation * StandardDeviation)) / (StandardDeviation * sqrt(static_cast<T>(6.28318530717958647692528676655900576)));
}
template<typename T, qualifier Q>
GLM_FUNC_QUALIFIER T gauss
(
vec<2, T, Q> const& Coord,
vec<2, T, Q> const& ExpectedValue,
vec<2, T, Q> const& StandardDeviation
)
{
vec<2, T, Q> const Squared = ((Coord - ExpectedValue) * (Coord - ExpectedValue)) / (static_cast<T>(2) * StandardDeviation * StandardDeviation);
return exp(-(Squared.x + Squared.y));
}
}//namespace glm
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