add lib

enginecustom/include/glm/ext/scalar_constants.inl

@@ -0,0 +1,24 @@
+#include <limits>
+
+namespace glm
+{
+	template<typename genType>
+	GLM_FUNC_QUALIFIER GLM_CONSTEXPR genType epsilon()
+	{
+		GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_iec559 || GLM_CONFIG_UNRESTRICTED_FLOAT, "'epsilon' only accepts floating-point inputs");
+		return std::numeric_limits<genType>::epsilon();
+	}
+
+	template<typename genType>
+	GLM_FUNC_QUALIFIER GLM_CONSTEXPR genType pi()
+	{
+		GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_iec559 || GLM_CONFIG_UNRESTRICTED_FLOAT, "'pi' only accepts floating-point inputs");
+		return static_cast<genType>(3.14159265358979323846264338327950288);
+	}
+
+	template<typename genType>
+	GLM_FUNC_QUALIFIER GLM_CONSTEXPR genType cos_one_over_two()
+	{
+		return genType(0.877582561890372716130286068203503191);
+	}
+} //namespace glm