Refactor code for multiplatform

1 files changed, 3 insertions, 1 deletions

diff --git a/src/vec3.cpp b/src/vec3.cpp
index b1e73f8..afc4c97 100644
--- a/src/vec3.cpp
+++ b/src/vec3.cpp
@@ -1,5 +1,7 @@
+#include <cmath>
+
 #include "vec3.hpp"
-#include "rt.hpp"
+#include "utils.hpp"
 
 vec3::vec3(): x(0.0), y(0.0), z(0.0) {}