rtc_namespace.patch

diff --git a/src/kernel/kernel_types.h b/src/kernel/kernel_types.h
index 74c2eb0..cd6113d 100644
--- a/src/kernel/kernel_types.h
+++ b/src/kernel/kernel_types.h
@@ -21,6 +21,7 @@
 #  include <embree3/rtcore.h>
 #  include <embree3/rtcore_scene.h>
 #  define __EMBREE__
+RTC_NAMESPACE_OPEN
 #endif
 
 #include "kernel/kernel_math.h"