store ray hittable drawables in the scene

openVulkanoCpp/Scene/Scene.hpp

@@ -20,6 +20,7 @@ namespace OpenVulkano
 		public:
 			Node* root;
 			std::vector<Drawable*> shapeList;
+			std::vector<Drawable*> rayHittableDrawables;
 			Camera* camera;
 
 		public:
@@ -55,11 +56,21 @@ namespace OpenVulkano
 				return root;
 			}
 
+			void RegisterHittableDrawable(Drawable* drawable) 
+			{
+				drawable->SetIsHittable(true);
+				RegisterDrawable(drawable);
+			}
+
 			void RegisterDrawable(Drawable* drawable)
 			{
 				if (drawable->GetScene() != this) drawable->SetScene(this);
 				if (Utils::Contains(shapeList, drawable)) return; // Prevent duplicate entries
 				shapeList.push_back(drawable);
+				if (drawable->IsHittable())
+				{
+					rayHittableDrawables.push_back(drawable);
+				}
 				if (shapeList.size() > 1 && shapeList[shapeList.size() - 2]->GetDrawPhase() < drawable->GetDrawPhase())
 				{
 					std::sort(shapeList.begin(), shapeList.end(),
@@ -70,12 +81,14 @@ namespace OpenVulkano
 			void RemoveDrawable(Drawable* drawable)
 			{
 				Utils::Remove(shapeList, drawable);
+				Utils::Remove(rayHittableDrawables, drawable);
 				drawable->SetScene(nullptr);
 			}
 
 			virtual void SetCamera(Camera* camera)
 			{
 				this->camera = camera;
+				camera->scene = this;
 			}
 
 			Camera* GetCamera() const