return length_squared(a - b);
}
+inline float distance(const glm::vec3 &a, const glm::vec3 &b) noexcept {
+ return length(a - b);
+}
+
template <class T>
inline bool iszero(const T &v) noexcept {
return length_squared(v) < std::numeric_limits<typename T::value_type>::epsilon();