Include vec.h.

1 files changed, 1 insertions, 0 deletions

diff --git a/material.h b/material.h
index b839cc9..adb2b69 100644
--- a/material.h
+++ b/material.h
@@ -5,6 +5,7 @@
 #ifndef RT_MATERIAL_H
 #define RT_MATERIAL_H
 
+#include "vec.h"
 #include "object.h"
 
 class object;