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diff --git a/depedencies/include/glm/gtx/normal.inl b/depedencies/include/glm/gtx/normal.inl
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+/// @ref gtx_normal
+/// @file glm/gtx/normal.inl
+
+namespace glm
+{
+ template <typename T, precision P>
+ GLM_FUNC_QUALIFIER tvec3<T, P> triangleNormal
+ (
+ tvec3<T, P> const & p1,
+ tvec3<T, P> const & p2,
+ tvec3<T, P> const & p3
+ )
+ {
+ return normalize(cross(p1 - p2, p1 - p3));
+ }
+}//namespace glm