calculate AABB for geometry

openVulkanoCpp/Scene/Geometry.cpp

@@ -83,6 +83,46 @@ namespace OpenVulkano::Scene
 		Geometry::Close();
 	}
 
+	void Geometry::CalculateAABB()
+	{ 
+		if (vertexCount == 0 || !vertices)
+		{
+			return;
+		}
+		for (int i = 0; i < vertexCount; i++)
+		{
+			float x = vertices[i].position.x;
+			float y = vertices[i].position.y;
+			float z = vertices[i].position.z;
+
+			if (x < aabb.min.x)
+			{
+				aabb.min.x = x;
+			}
+			if (y < aabb.min.y)
+			{
+				aabb.min.y = y;
+			}
+			if (z < aabb.min.z)
+			{
+				aabb.min.z = z;
+			}
+
+			if (x > aabb.max.x)
+			{
+				aabb.max.x = x;
+			}
+			if (y > aabb.max.y)
+			{
+				aabb.max.y = y;
+			}
+			if (z > aabb.max.z)
+			{
+				aabb.max.z = z;
+			}
+		}
+	}
+
 	void Geometry::Swap(Geometry& other) noexcept
 	{
 		RenderResourceHolder<Geometry>::Swap(other);

openVulkanoCpp/Scene/Geometry.hpp

@@ -63,6 +63,7 @@ namespace OpenVulkano
 			void SetOwnsMemory(bool val) { ownsMemory = val; }
 			bool FreeAfterUpload() const { return freeAfterUpload; }
 			void SetFreeAfterUpload(bool val) { freeAfterUpload = val; }
+			void CalculateAABB();
 		private:
 			void Swap(Geometry& other) noexcept;
 		};