+template<class Vec>
+inline Vec limit(const Vec &v, typename Vec::value_type max) noexcept {
+ typename Vec::value_type len2 = glm::length2(v);
+ typename Vec::value_type max2 = max * max;
+ if (len2 > max2) {
+ return glm::normalize(v) * max;
+ } else {
+ return v;
+ }
+}
+