X-Git-Url: http://git.localhorst.tv/?a=blobdiff_plain;f=src%2Fmodel%2Fgeometry.hpp;h=0bc17c162b73afb2e457866ca5c0d98617f59865;hb=0ab149c70b3f984b2cc0c7a122b4aa347bc5fd79;hp=fd2c42bb8c8fa7f643f7fcae8697aeac26496dd2;hpb=7c5e04a4af82947ae8e26db3d03f13a555c10aba;p=blank.git

diff --git a/src/model/geometry.hpp b/src/model/geometry.hpp
index fd2c42b..0bc17c1 100644
--- a/src/model/geometry.hpp
+++ b/src/model/geometry.hpp
@@ -2,6 +2,7 @@
 #define BLANK_MODEL_GEOMETRY_H_
 
 #include <algorithm>
+#include <limits>
 #include <glm/glm.hpp>
 
 
@@ -28,6 +29,12 @@ constexpr float rad2deg(float r) {
 }
 
 
+template <class T>
+inline bool iszero(const T &v) {
+	return dot(v, v) < std::numeric_limits<typename T::value_type>::epsilon();
+}
+
+
 template<class T>
 T manhattan_distance(const glm::tvec3<T> &a, const glm::tvec3<T> &b) {
 	glm::tvec3<T> diff(abs(a - b));