diff --git a/openVulkanoCpp/Math/Frustum.hpp b/openVulkanoCpp/Math/Frustum.hpp
index 9b9ff64..37c39d5 100644
--- a/openVulkanoCpp/Math/Frustum.hpp
+++ b/openVulkanoCpp/Math/Frustum.hpp
@@ -7,6 +7,7 @@
 #pragma once
 
 #include "Math.hpp"
+#include "Range.hpp"
 
 #ifdef NEAR
 #undef NEAR
@@ -76,7 +77,7 @@ namespace openVulkanoCpp::Math
 		}
 
 		// http://iquilezles.org/www/articles/frustumcorrect/frustumcorrect.htm
-		bool IsBoxVisible(const Math::Vector3f& minp, const Math::Vector3f& maxp) const
+		[[nodiscard]] bool IsBoxVisible(const Math::Vector3f& minp, const Math::Vector3f& maxp) const
 		{ // http://iquilezles.org/www/articles/frustumcorrect/frustumcorrect.htm
 			// check box outside/inside of frustum
 			for (int i = 0; i < COUNT; i++)
@@ -118,11 +119,16 @@ namespace openVulkanoCpp::Math
 			return true;
 		}
 
-		bool IsBoxVisible(const Math::Vector4f& minp, const Math::Vector4f& maxp) const
+		[[nodiscard]] bool IsBoxVisible(const Math::Vector4f& minp, const Math::Vector4f& maxp) const
 		{
 			return IsBoxVisible(Math::Vector3f(minp), Math::Vector3f(maxp));
 		}
 
+		[[nodiscard]] bool IsBoxVisible(const Range<Math::Vector3f>& range) const
+		{
+			return IsBoxVisible(range.min, range.max);
+		}
+
 	private:
 		template<Planes i, Planes j>
 		struct ij2k